#!/bin/bash #Script de instalación y configuración de servidor de correo con vusers, vdomains y valias, primera versión. #Licencia GPL. K. #Debian 7 fuente de referencia: https://library.linode.com/email/postfix/postfix2.9.6-dovecot2.0.19-mysql #Instalación de Mariadb https://downloads.mariadb.org/mariadb/repositories/#mirror=somerset&distro=Debian&distro_release=wheezy&version=5.5 echo -n "Instalar mariadb?[s/n]: " read respuestamaria if [ "$respuestamaria" = "s" ]; then echo -e "Añadiendo repositorios MariaDB...\n" echo "deb http://mirror.stshosting.co.uk/mariadb/repo/5.5/debian wheezy main" >> /etc/apt/sources.list echo "deb-src http://mirror.stshosting.co.uk/mariadb/repo/5.5/debian wheezy main" >> /etc/apt/sources.list echo -e "Añadiendo clave GPG repositorios...\n" apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xcbcb082a1bb943db echo -e "Actualizando repositorios...\n" aptitude update echo -e "Instalando cosas...\n" aptitude install python-software-properties aptitude install mariadb-server fi # Instala postfix y dovecot con soporte para mariadb # https://library.linode.com/email/postfix/postfix2.9.6-dovecot2.0.19-mysql # di si por defecto: aptitude install --y loquequierainstalar aptitude install postfix postfix-mysql dovecot-core dovecot-imapd dovecot-pop3d dovecot-lmtpd dovecot-mysql openssl service postfix stop service dovecot stop read -s -p "Introduzca clave de root de mariaDB: " passmariadb echo -e "\n" echo -e "Creando base de datos mailserver...\n" echo "CREATE DATABASE mailserver;" | mysql -uroot -p$passmariadb read -s -p "Invente una clave para la usuaria mailuser: " respuestamailuser echo -e "\nCreando usuaria mailuser...\n" echo "GRANT SELECT ON mailserver.* TO 'mailuser'@'127.0.0.1' IDENTIFIED BY '$respuestamailuser'; FLUSH PRIVILEGES;" | mysql -uroot -p$passmariadb # CREACIÓN de TABLAS echo -e "Creando tabla virtual_domains... \n" echo "CREATE TABLE mailserver.virtual_domains (id int(11) NOT NULL auto_increment,name varchar(50) NOT NULL,PRIMARY KEY (id)) ENGINE=InnoDB DEFAULT CHARSET=utf8;" | mysql -uroot -p$passmariadb echo -e "Creando tabla virtual_users... \n" echo "CREATE TABLE mailserver.virtual_users (id int(11) NOT NULL auto_increment,domain_id int(11) NOT NULL,password varchar(106) NOT NULL,email varchar(100) NOT NULL, PRIMARY KEY (id), UNIQUE KEY email (email), FOREIGN KEY (domain_id) REFERENCES virtual_domains(id) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=utf8;" | mysql -uroot -p$passmariadb echo -e "Creando tabla virtual_aliases... \n" echo "CREATE TABLE mailserver.virtual_aliases (id int(11) NOT NULL auto_increment,domain_id int(11) NOT NULL,source varchar(100) NOT NULL,destination varchar(100) NOT NULL, PRIMARY KEY (id), FOREIGN KEY (domain_id) REFERENCES virtual_domains(id) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=utf8;" | mysql -uroot -p$passmariadb echo -n "Introduzca nombre de dominio para su correo [ejemplo.net]: " read respuestadominio echo "INSERT INTO mailserver.virtual_domains(name) VALUES('$respuestadominio');" | mysql -uroot -p$passmariadb echo -e "\nDominio $respuestadominio insertado... \n" echo -n "Introduzca su dirección de correo a crear [pepi@$respuestadominio]: " read respuestacorreo echo -e "\n" read -s -p "Invente una clave para $respuestacorreo: " passcorreo echo "INSERT INTO mailserver.virtual_users(domain_id, password, email) VALUES('1', ENCRYPT('$passcorreo', CONCAT('$6$', SUBSTRING(SHA(RAND()), -16))), '$respuestacorreo');" | mysql -uroot -p$passmariadb echo -e "\nCreando cuenta de correo $respuestacorreo...\n" echo -e "Generando certificado y asignación de permisos...\n" openssl req -new -newkey rsa:4096 -days 3650 -nodes -x509 -subj "/C=NO/ST=Denial/L=Nowhere/O=Dis/CN=$respuestadominio" -out /etc/dovecot/dovecot.pem -keyout /etc/dovecot/private/dovecot.pem chmod o= /etc/dovecot/private/dovecot.pem echo -e "Certificado generado\n" ### POSTFIX ################################################################################################ echo -e "Configurando Postfix\n" mv /etc/postfix/main.cf /etc/postfix/main.cf.backup cat > /etc/postfix/main.cf <<EOF # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = \$myhostname ESMTP \$mail_name biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters #smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem #smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key #smtpd_use_tls=yes #smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache #smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache #en debian los certificados están en /etc/dovecot/dovecot.pem y /etc/dovecot/private/dovecot.pem smtpd_tls_cert_file=/etc/dovecot/dovecot.pem smtpd_tls_key_file=/etc/dovecot/private/dovecot.pem smtpd_use_tls=yes smtpd_tls_auth_only = yes #Enabling SMTP for authenticated users, and handing off authentication to Dovecot smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = $respuestadominio alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname #mydestination = example.com, hostname.example.com, localhost.example.com, localhost mydestination = localhost relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all #Handing off local delivery to Dovecot's LMTP, and telling it where to store mail virtual_transport = lmtp:unix:private/dovecot-lmtp #Virtual domains, users, and aliases virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf EOF # creación tres archivos postfix que mapean la bd # 1. /etc/postfix/mysql-virtual-mailbox-domains.cf cat > /etc/postfix/mysql-virtual-mailbox-domains.cf <<EOF user = mailuser password = $respuestamailuser hosts = 127.0.0.1 dbname = mailserver query = SELECT 1 FROM virtual_domains WHERE name='%s' EOF # 2. /etc/postfix/mysql-virtual-mailbox-maps.cf cat > /etc/postfix/mysql-virtual-mailbox-maps.cf <<EOF user = mailuser password = $respuestamailuser hosts = 127.0.0.1 dbname = mailserver query = SELECT 1 FROM virtual_users WHERE email='%s' EOF # 3. /etc/postfix/mysql-virtual-alias-maps.cf cat > /etc/postfix/mysql-virtual-alias-maps.cf <<EOF user = mailuser password = $respuestamailuser hosts = 127.0.0.1 dbname = mailserver query = SELECT destination FROM virtual_aliases WHERE source='%s' EOF echo -e "Postfix configurado\n" # Comprobaciones service postfix restart #comprueba dominio echo -e "\nComprobando mapeo base de datos, dominios virtuales, si 1, correcto:\n" postmap -q $respuestadominio mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf #comprueba correo echo -e "\nComprobando mapeo base de datos, usuaria virtual, si 1, correcto:\n" postmap -q $respuestacorreo mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf service postfix stop ########################################################################## # Fin de postfix. Ahora: ######################################## #DOVECOT ########################################################################### #Necesitamos modicar 6 archivos de los cuales haremos copia primero ########################################################################### echo -e "Configurando Dovecot\n" echo -e "\nHaciendo backups de los archivos de dovecot...\n" mv /etc/dovecot/dovecot.conf /etc/dovecot/dovecot.conf.backup mv /etc/dovecot/conf.d/10-mail.conf /etc/dovecot/conf.d/10-mail.conf.backup mv /etc/dovecot/conf.d/10-auth.conf /etc/dovecot/conf.d/10-auth.conf.backup mv /etc/dovecot/dovecot-sql.conf.ext /etc/dovecot/dovecot-sql.conf.ext.backup mv /etc/dovecot/conf.d/10-master.conf /etc/dovecot/conf.d/10-master.conf.backup mv /etc/dovecot/conf.d/10-ssl.conf /etc/dovecot/conf.d/10-ssl.conf.backup ###################################### # En debian 7 aparece este error entonces se mueve 15-mailboxes y desaparece # Initialization failed: namespace configuration error: inbox=yes namespace missing ##################################### mv /etc/dovecot/conf.d/15-mailboxes.conf /etc/dovecot/conf.d/15-mailboxes.conf.backup echo -e "\nCopia finalizada\n" echo -e "Mostrando resultados...(Si la copia se ha realizado correctamente verá 7 archivos con terminación .backup)\n" ls /etc/dovecot/*backup ls /etc/dovecot/conf.d/*backup sleep 5 ############################################################################ #Configuracion dovecot.conf ############################################################################ cat > /etc/dovecot/dovecot.conf <<EOF ## Dovecot configuration file # If you're in a hurry, see http://wiki2.dovecot.org/QuickConfiguration # "doveconf -n" command gives a clean output of the changed settings. Use it # instead of copy&pasting files when posting to the Dovecot mailing list. # '#' character and everything after it is treated as comments. Extra spaces # and tabs are ignored. If you want to use either of these explicitly, put the # value inside quotes, eg.: key = "# char and trailing whitespace " # Default values are shown for each setting, it's not required to uncomment # those. These are exceptions to this though: No sections (e.g. namespace {}) # or plugin settings are added by default, they're listed only as examples. # Paths are also just examples with the real defaults being based on configure # options. The paths listed here are for configure --prefix=/usr # --sysconfdir=/etc --localstatedir=/var # Enable installed protocols !include_try /usr/share/dovecot/protocols.d/*.protocol protocols = imap pop3 lmtp # A comma separated list of IPs or hosts where to listen in for connections. # "*" listens in all IPv4 interfaces, "::" listens in all IPv6 interfaces. # If you want to specify non-default ports or anything more complex, # edit conf.d/master.conf. #listen = *, :: # Base directory where to store runtime data. #base_dir = /var/run/dovecot/ # Name of this instance. Used to prefix all Dovecot processes in ps output. #instance_name = dovecot # Greeting message for clients. #login_greeting = Dovecot ready. # Space separated list of trusted network ranges. Connections from these # IPs are allowed to override their IP addresses and ports (for logging and # for authentication checks). disable_plaintext_auth is also ignored for # these networks. Typically you'd specify your IMAP proxy servers here. #login_trusted_networks = # Sepace separated list of login access check sockets (e.g. tcpwrap) #login_access_sockets = # Show more verbose process titles (in ps). Currently shows user name and # IP address. Useful for seeing who are actually using the IMAP processes # (eg. shared mailboxes or if same uid is used for multiple accounts). #verbose_proctitle = no # Should all processes be killed when Dovecot master process shuts down. # Setting this to "no" means that Dovecot can be upgraded without # forcing existing client connections to close (although that could also be # a problem if the upgrade is e.g. because of a security fix). #shutdown_clients = yes # If non-zero, run mail commands via this many connections to doveadm server, # instead of running them directly in the same process. #doveadm_worker_count = 0 # UNIX socket or host:port used for connecting to doveadm server #doveadm_socket_path = doveadm-server # Space separated list of environment variables that are preserved on Dovecot # startup and passed down to all of its child processes. You can also give # key=value pairs to always set specific settings. #import_environment = TZ ## ## Dictionary server settings ## # Dictionary can be used to store key=value lists. This is used by several # plugins. The dictionary can be accessed either directly or though a # dictionary server. The following dict block maps dictionary names to URIs # when the server is used. These can then be referenced using URIs in format # "proxy::<name>". dict { #quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext #expire = sqlite:/etc/dovecot/dovecot-dict-sql.conf.ext } # Most of the actual configuration gets included below. The filenames are # first sorted by their ASCII value and parsed in that order. The 00-prefixes # in filenames are intended to make it easier to understand the ordering. !include conf.d/*.conf # A config file can also tried to be included without giving an error if # it's not found: !include_try local.conf EOF #echo -e "Archivo /etc/dovecot/dovecot.conf creado, ahora se mostrará para comprobaciones\n" #sleep 2 #more /etc/dovecot/dovecot.conf ########################################################################### #Configuracion /etc/dovecot/conf.d/10-mail.conf ########################################################################### #echo -e "Creando el archivo de configuración /etc/dovecot/conf.d/10-mail.conf...." cat > /etc/dovecot/conf.d/10-mail.conf <<EOF ## ## Mailbox locations and namespaces ## # Location for users' mailboxes. The default is empty, which means that Dovecot # tries to find the mailboxes automatically. This won't work if the user # doesn't yet have any mail, so you should explicitly tell Dovecot the full # location. # # If you're using mbox, giving a path to the INBOX file (eg. /var/mail/%u) # isn't enough. You'll also need to tell Dovecot where the other mailboxes are # kept. This is called the "root mail directory", and it must be the first # path given in the mail_location setting. # # There are a few special variables you can use, eg.: # # %u - username # %n - user part in user@domain, same as %u if there's no domain # %d - domain part in user@domain, empty if there's no domain # %h - home directory # # See doc/wiki/Variables.txt for full list. Some examples: # # mail_location = maildir:~/Maildir # mail_location = mbox:~/mail:INBOX=/var/mail/%u # mail_location = mbox:/var/mail/%d/%1n/%n:INDEX=/var/indexes/%d/%1n/%n # # <doc/wiki/MailLocation.txt> # mail_location = maildir:/var/mail/vhosts/%d/%n # If you need to set multiple mailbox locations or want to change default # namespace settings, you can do it by defining namespace sections. # # You can have private, shared and public namespaces. Private namespaces # are for user's personal mails. Shared namespaces are for accessing other # users' mailboxes that have been shared. Public namespaces are for shared # mailboxes that are managed by sysadmin. If you create any shared or public # namespaces you'll typically want to enable ACL plugin also, otherwise all # users can access all the shared mailboxes, assuming they have permissions # on filesystem level to do so. # # REMEMBER: If you add any namespaces, the default namespace must be added # explicitly, ie. mail_location does nothing unless you have a namespace # without a location setting. Default namespace is simply done by having a # namespace with empty prefix. #namespace { # Namespace type: private, shared or public #type = private # Hierarchy separator to use. You should use the same separator for all # namespaces or some clients get confused. '/' is usually a good one. # The default however depends on the underlying mail storage format. #separator = # Prefix required to access this namespace. This needs to be different for # all namespaces. For example "Public/". #prefix = # Physical location of the mailbox. This is in same format as # mail_location, which is also the default for it. #location = # There can be only one INBOX, and this setting defines which namespace # has it. #inbox = no # If namespace is hidden, it's not advertised to clients via NAMESPACE # extension. You'll most likely also want to set list=no. This is mostly # useful when converting from another server with different namespaces which # you want to deprecate but still keep working. For example you can create # hidden namespaces with prefixes "~/mail/", "~%u/mail/" and "mail/". #hidden = no # Show the mailboxes under this namespace with LIST command. This makes the # namespace visible for clients that don't support NAMESPACE extension. # "children" value lists child mailboxes, but hides the namespace prefix. #list = yes # Namespace handles its own subscriptions. If set to "no", the parent # namespace handles them (empty prefix should always have this as "yes") #subscriptions = yes #} # Example shared namespace configuration #namespace { #type = shared #separator = / # Mailboxes are visible under "shared/user@domain/" # %%n, %%d and %%u are expanded to the destination user. #prefix = shared/%%u/ # Mail location for other users' mailboxes. Note that %variables and ~/ # expands to the logged in user's data. %%n, %%d, %%u and %%h expand to the # destination user's data. #location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u # Use the default namespace for saving subscriptions. #subscriptions = no # List the shared/ namespace only if there are visible shared mailboxes. #list = children #} # System user and group used to access mails. If you use multiple, userdb # can override these by returning uid or gid fields. You can use either numbers # or names. <doc/wiki/UserIds.txt> #mail_uid = #mail_gid = # Group to enable temporarily for privileged operations. Currently this is # used only with INBOX when either its initial creation or dotlocking fails. # Typically this is set to "mail" to give access to /var/mail. mail_privileged_group = mail # Grant access to these supplementary groups for mail processes. Typically # these are used to set up access to shared mailboxes. Note that it may be # dangerous to set these if users can create symlinks (e.g. if "mail" group is # set here, ln -s /var/mail ~/mail/var could allow a user to delete others' # mailboxes, or ln -s /secret/shared/box ~/mail/mybox would allow reading it). #mail_access_groups = # Allow full filesystem access to clients. There's no access checks other than # what the operating system does for the active UID/GID. It works with both # maildir and mboxes, allowing you to prefix mailboxes names with eg. /path/ # or ~user/. #mail_full_filesystem_access = no ## ## Mail processes ## # Don't use mmap() at all. This is required if you store indexes to shared # filesystems (NFS or clustered filesystem). #mmap_disable = no # Rely on O_EXCL to work when creating dotlock files. NFS supports O_EXCL # since version 3, so this should be safe to use nowadays by default. #dotlock_use_excl = yes # When to use fsync() or fdatasync() calls: # optimized (default): Whenever necessary to avoid losing important data # always: Useful with e.g. NFS when write()s are delayed # never: Never use it (best performance, but crashes can lose data) #mail_fsync = optimized # Mail storage exists in NFS. Set this to yes to make Dovecot flush NFS caches # whenever needed. If you're using only a single mail server this isn't needed. #mail_nfs_storage = no # Mail index files also exist in NFS. Setting this to yes requires # mmap_disable=yes and fsync_disable=no. #mail_nfs_index = no # Locking method for index files. Alternatives are fcntl, flock and dotlock. # Dotlocking uses some tricks which may create more disk I/O than other locking # methods. NFS users: flock doesn't work, remember to change mmap_disable. #lock_method = fcntl # Directory in which LDA/LMTP temporarily stores incoming mails >128 kB. #mail_temp_dir = /tmp # Valid UID range for users, defaults to 500 and above. This is mostly # to make sure that users can't log in as daemons or other system users. # Note that denying root logins is hardcoded to dovecot binary and can't # be done even if first_valid_uid is set to 0. #first_valid_uid = 500 #last_valid_uid = 0 # Valid GID range for users, defaults to non-root/wheel. Users having # non-valid GID as primary group ID aren't allowed to log in. If user # belongs to supplementary groups with non-valid GIDs, those groups are # not set. #first_valid_gid = 1 #last_valid_gid = 0 # Maximum allowed length for mail keyword name. It's only forced when trying # to create new keywords. #mail_max_keyword_length = 50 # ':' separated list of directories under which chrooting is allowed for mail # processes (ie. /var/mail will allow chrooting to /var/mail/foo/bar too). # This setting doesn't affect login_chroot, mail_chroot or auth chroot # settings. If this setting is empty, "/./" in home dirs are ignored. # WARNING: Never add directories here which local users can modify, that # may lead to root exploit. Usually this should be done only if you don't # allow shell access for users. <doc/wiki/Chrooting.txt> #valid_chroot_dirs = # Default chroot directory for mail processes. This can be overridden for # specific users in user database by giving /./ in user's home directory # (eg. /home/./user chroots into /home). Note that usually there is no real # need to do chrooting, Dovecot doesn't allow users to access files outside # their mail directory anyway. If your home directories are prefixed with # the chroot directory, append "/." to mail_chroot. <doc/wiki/Chrooting.txt> #mail_chroot = # UNIX socket path to master authentication server to find users. # This is used by imap (for shared users) and lda. #auth_socket_path = /var/run/dovecot/auth-userdb # Directory where to look up mail plugins. #mail_plugin_dir = /usr/lib/dovecot/modules # Space separated list of plugins to load for all services. Plugins specific to # IMAP, LDA, etc. are added to this list in their own .conf files. #mail_plugins = ## ## Mailbox handling optimizations ## # The minimum number of mails in a mailbox before updates are done to cache # file. This allows optimizing Dovecot's behavior to do less disk writes at # the cost of more disk reads. #mail_cache_min_mail_count = 0 # When IDLE command is running, mailbox is checked once in a while to see if # there are any new mails or other changes. This setting defines the minimum # time to wait between those checks. Dovecot can also use dnotify, inotify and # kqueue to find out immediately when changes occur. #mailbox_idle_check_interval = 30 secs # Save mails with CR+LF instead of plain LF. This makes sending those mails # take less CPU, especially with sendfile() syscall with Linux and FreeBSD. # But it also creates a bit more disk I/O which may just make it slower. # Also note that if other software reads the mboxes/maildirs, they may handle # the extra CRs wrong and cause problems. #mail_save_crlf = no ## ## Maildir-specific settings ## # By default LIST command returns all entries in maildir beginning with a dot. # Enabling this option makes Dovecot return only entries which are directories. # This is done by stat()ing each entry, so it causes more disk I/O. # (For systems setting struct dirent->d_type, this check is free and it's # done always regardless of this setting) #maildir_stat_dirs = no # When copying a message, do it with hard links whenever possible. This makes # the performance much better, and it's unlikely to have any side effects. #maildir_copy_with_hardlinks = yes # Assume Dovecot is the only MUA accessing Maildir: Scan cur/ directory only # when its mtime changes unexpectedly or when we can't find the mail otherwise. #maildir_very_dirty_syncs = no ## ## mbox-specific settings ## # Which locking methods to use for locking mbox. There are four available: # dotlock: Create <mailbox>.lock file. This is the oldest and most NFS-safe # solution. If you want to use /var/mail/ like directory, the users # will need write access to that directory. # dotlock_try: Same as dotlock, but if it fails because of permissions or # because there isn't enough disk space, just skip it. # fcntl : Use this if possible. Works with NFS too if lockd is used. # flock : May not exist in all systems. Doesn't work with NFS. # lockf : May not exist in all systems. Doesn't work with NFS. # # You can use multiple locking methods; if you do the order they're declared # in is important to avoid deadlocks if other MTAs/MUAs are using multiple # locking methods as well. Some operating systems don't allow using some of # them simultaneously. #mbox_read_locks = fcntl #mbox_write_locks = dotlock fcntl # Maximum time to wait for lock (all of them) before aborting. #mbox_lock_timeout = 5 mins # If dotlock exists but the mailbox isn't modified in any way, override the # lock file after this much time. #mbox_dotlock_change_timeout = 2 mins # When mbox changes unexpectedly we have to fully read it to find out what # changed. If the mbox is large this can take a long time. Since the change # is usually just a newly appended mail, it'd be faster to simply read the # new mails. If this setting is enabled, Dovecot does this but still safely # fallbacks to re-reading the whole mbox file whenever something in mbox isn't # how it's expected to be. The only real downside to this setting is that if # some other MUA changes message flags, Dovecot doesn't notice it immediately. # Note that a full sync is done with SELECT, EXAMINE, EXPUNGE and CHECK # commands. #mbox_dirty_syncs = yes # Like mbox_dirty_syncs, but don't do full syncs even with SELECT, EXAMINE, # EXPUNGE or CHECK commands. If this is set, mbox_dirty_syncs is ignored. #mbox_very_dirty_syncs = no # Delay writing mbox headers until doing a full write sync (EXPUNGE and CHECK # commands and when closing the mailbox). This is especially useful for POP3 # where clients often delete all mails. The downside is that our changes # aren't immediately visible to other MUAs. #mbox_lazy_writes = yes # If mbox size is smaller than this (e.g. 100k), don't write index files. # If an index file already exists it's still read, just not updated. #mbox_min_index_size = 0 ## ## mdbox-specific settings ## # Maximum dbox file size until it's rotated. #mdbox_rotate_size = 2M # Maximum dbox file age until it's rotated. Typically in days. Day begins # from midnight, so 1d = today, 2d = yesterday, etc. 0 = check disabled. #mdbox_rotate_interval = 0 # When creating new mdbox files, immediately preallocate their size to # mdbox_rotate_size. This setting currently works only in Linux with some # filesystems (ext4, xfs). #mdbox_preallocate_space = no ## ## Mail attachments ## # sdbox and mdbox support saving mail attachments to external files, which # also allows single instance storage for them. Other backends don't support # this for now. # WARNING: This feature hasn't been tested much yet. Use at your own risk. # Directory root where to store mail attachments. Disabled, if empty. #mail_attachment_dir = # Attachments smaller than this aren't saved externally. It's also possible to # write a plugin to disable saving specific attachments externally. #mail_attachment_min_size = 128k # Filesystem backend to use for saving attachments: # posix : No SiS done by Dovecot (but this might help FS's own deduplication) # sis posix : SiS with immediate byte-by-byte comparison during saving # sis-queue posix : SiS with delayed comparison and deduplication #mail_attachment_fs = sis posix # Hash format to use in attachment filenames. You can add any text and # variables: %{md4}, %{md5}, %{sha1}, %{sha256}, %{sha512}, %{size}. # Variables can be truncated, e.g. %{sha256:80} returns only first 80 bits #mail_attachment_hash = %{sha1} EOF #echo -e "Archivo /etc/dovecot/conf.d/10-mail.conf creado. Se mostrará para su verificación" #echo -e "La línea que ha sido modificada es la correspondiente a mail_location = maildir:..... y mail_privileged_group = mail" #sleep 2 #more /etc/dovecot/conf.d/10-mail.conf #Verificamos los permisos de /var/mail echo "A continuación aparecerán los permisos de /var/mail que deberán ser: drwxrwsr-x 2 root mail 4096 Mar 6 15:08 /var/mail" echo "Permisos de /var/mail" ls -ld /var/mail #Crearemos el directorio /var/mail/vhost y una carpeta para cada dominio creado echo -e "Creando directorio /var/mail/vhost...\n" mkdir -p /var/mail/vhost/$respuestadominio echo -e "Creado /var/mail/vhost/$respuestadominio\n" echo -e "Añadiendo usuaria vmail y grupo vmail con gid 5000... \n" groupadd -g 5000 vmail useradd -g vmail -u 5000 vmail -d /var/mail chown -R vmail:vmail /var/mail echo -e "Usuaria vmail creada\n" ######################################################### # Configuración de /etc/dovecot/conf.d/10-auth.conf # ######################################################### #echo -e "Configurando el fichero: /etc/dovecot/conf.d/10-auth.conf.....\n" cat > /etc/dovecot/conf.d/10-auth.conf <<EOF ## ## Authentication processes ## # Disable LOGIN command and all other plaintext authentications unless # SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP # matches the local IP (ie. you're connecting from the same computer), the # connection is considered secure and plaintext authentication is allowed. disable_plaintext_auth = yes # Authentication cache size (e.g. 10M). 0 means it's disabled. Note that # bsdauth, PAM and vpopmail require cache_key to be set for caching to be used. #auth_cache_size = 0 # Time to live for cached data. After TTL expires the cached record is no # longer used, *except* if the main database lookup returns internal failure. # We also try to handle password changes automatically: If user's previous # authentication was successful, but this one wasn't, the cache isn't used. # For now this works only with plaintext authentication. #auth_cache_ttl = 1 hour # TTL for negative hits (user not found, password mismatch). # 0 disables caching them completely. #auth_cache_negative_ttl = 1 hour # Space separated list of realms for SASL authentication mechanisms that need # them. You can leave it empty if you don't want to support multiple realms. # Many clients simply use the first one listed here, so keep the default realm # first. #auth_realms = # Default realm/domain to use if none was specified. This is used for both # SASL realms and appending @domain to username in plaintext logins. #auth_default_realm = # List of allowed characters in username. If the user-given username contains # a character not listed in here, the login automatically fails. This is just # an extra check to make sure user can't exploit any potential quote escaping # vulnerabilities with SQL/LDAP databases. If you want to allow all characters, # set this value to empty. #auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ # Username character translations before it's looked up from databases. The # value contains series of from -> to characters. For example "#@/@" means # that '#' and '/' characters are translated to '@'. #auth_username_translation = # Username formatting before it's looked up from databases. You can use # the standard variables here, eg. %Lu would lowercase the username, %n would # drop away the domain if it was given, or "%n-AT-%d" would change the '@' into # "-AT-". This translation is done after auth_username_translation changes. #auth_username_format = # If you want to allow master users to log in by specifying the master # username within the normal username string (ie. not using SASL mechanism's # support for it), you can specify the separator character here. The format # is then <username><separator><master username>. UW-IMAP uses "*" as the # separator, so that could be a good choice. #auth_master_user_separator = # Username to use for users logging in with ANONYMOUS SASL mechanism #auth_anonymous_username = anonymous # Maximum number of dovecot-auth worker processes. They're used to execute # blocking passdb and userdb queries (eg. MySQL and PAM). They're # automatically created and destroyed as needed. #auth_worker_max_count = 30 # Host name to use in GSSAPI principal names. The default is to use the # name returned by gethostname(). Use "$ALL" (with quotes) to allow all keytab # entries. #auth_gssapi_hostname = # Kerberos keytab to use for the GSSAPI mechanism. Will use the system # default (usually /etc/krb5.keytab) if not specified. You may need to change # the auth service to run as root to be able to read this file. #auth_krb5_keytab = # Do NTLM and GSS-SPNEGO authentication using Samba's winbind daemon and # ntlm_auth helper. <doc/wiki/Authentication/Mechanisms/Winbind.txt> #auth_use_winbind = no # Path for Samba's ntlm_auth helper binary. #auth_winbind_helper_path = /usr/bin/ntlm_auth # Time to delay before replying to failed authentications. #auth_failure_delay = 2 secs # Require a valid SSL client certificate or the authentication fails. #auth_ssl_require_client_cert = no # Take the username from client's SSL certificate, using # X509_NAME_get_text_by_NID() which returns the subject's DN's # CommonName. #auth_ssl_username_from_cert = no # Space separated list of wanted authentication mechanisms: # plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi otp skey # gss-spnego # NOTE: See also disable_plaintext_auth setting. auth_mechanisms = plain login ## ## Password and user databases ## # # Password database is used to verify user's password (and nothing more). # You can have multiple passdbs and userdbs. This is useful if you want to # allow both system users (/etc/passwd) and virtual users to login without # duplicating the system users into virtual database. # # <doc/wiki/PasswordDatabase.txt> # # User database specifies where mails are located and what user/group IDs # own them. For single-UID configuration use "static" userdb. # # <doc/wiki/UserDatabase.txt> #!include auth-deny.conf.ext #!include auth-master.conf.ext #!include auth-system.conf.ext !include auth-sql.conf.ext #!include auth-ldap.conf.ext #!include auth-passwdfile.conf.ext #!include auth-checkpassword.conf.ext #!include auth-vpopmail.conf.ext #!include auth-static.conf.ext EOF #echo -e "\nEl archivo /etc/dovecot/conf.d/10-auth.conf configurado \n" #sleep 2 #more /etc/dovecot/conf.d/10-auth.conf #################################################################################################### #Configurando el fichero /etc/dovecot/conf.d/auth-sql.conf.ext . Este fichero es de nueva creación # #################################################################################################### #echo -e "Creando el fichero /etc/dovecot/conf.d/auth-sql.conf.ext ..... \n" cat > /etc/dovecot/conf.d/auth-sql.conf.ext <<EOF passdb { driver = sql args = /etc/dovecot/dovecot-sql.conf.ext } userdb { driver = static args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n } EOF #echo -e "\nMostrando /etc/dovecot/conf.d/auth-sql.conf.ext creado..." #sleep 2 #more /etc/dovecot/conf.d/auth-sql.conf.ext ###################################################### #Creando fichero /etc/dovecot/dovecot-sql.conf.ext # ###################################################### echo -n "Creando fichero /etc/dovecot/dovecot-sql.conf.ext...\n" cat > /etc/dovecot/dovecot-sql.conf.ext <<EOF # This file is opened as root, so it should be owned by root and mode 0600. # # http://wiki2.dovecot.org/AuthDatabase/SQL # # For the sql passdb module, you'll need a database with a table that # contains fields for at least the username and password. If you want to # use the user@domain syntax, you might want to have a separate domain # field as well. # # If your users all have the same uig/gid, and have predictable home # directories, you can use the static userdb module to generate the home # dir based on the username and domain. In this case, you won't need fields # for home, uid, or gid in the database. # # If you prefer to use the sql userdb module, you'll want to add fields # for home, uid, and gid. Here is an example table: # # CREATE TABLE users ( # username VARCHAR(128) NOT NULL, # domain VARCHAR(128) NOT NULL, # password VARCHAR(64) NOT NULL, # home VARCHAR(255) NOT NULL, # uid INTEGER NOT NULL, # gid INTEGER NOT NULL, # active CHAR(1) DEFAULT 'Y' NOT NULL # ); # Database driver: mysql, pgsql, sqlite driver = mysql # Database connection string. This is driver-specific setting. # # HA / round-robin load-balancing is supported by giving multiple host # settings, like: host=sql1.host.org host=sql2.host.org # # pgsql: # For available options, see the PostgreSQL documention for the # PQconnectdb function of libpq. # Use maxconns=n (default 5) to change how many connections Dovecot can # create to pgsql. # # mysql: # Basic options emulate PostgreSQL option names: # host, port, user, password, dbname # # But also adds some new settings: # client_flags - See MySQL manual # ssl_ca, ssl_ca_path - Set either one or both to enable SSL # ssl_cert, ssl_key - For sending client-side certificates to server # ssl_cipher - Set minimum allowed cipher security (default: HIGH) # option_file - Read options from the given file instead of # the default my.cnf location # option_group - Read options from the given group (default: client) # # You can connect to UNIX sockets by using host: host=/var/run/mysql.sock # Note that currently you can't use spaces in parameters. # # sqlite: # The path to the database file. # # Examples: # connect = host=192.168.1.1 dbname=users # connect = host=sql.example.com dbname=virtual user=virtual password=blarg # connect = /etc/dovecot/authdb.sqlite # connect = host=127.0.0.1 dbname=mailserver user=mailuser password=$respuestamailuser # Default password scheme. # # List of supported schemes is in # http://wiki2.dovecot.org/Authentication/PasswordSchemes # default_pass_scheme = SHA512-CRYPT # passdb query to retrieve the password. It can return fields: # password - The user's password. This field must be returned. # user - user@domain from the database. Needed with case-insensitive lookups. # username and domain - An alternative way to represent the "user" field. # # The "user" field is often necessary with case-insensitive lookups to avoid # e.g. "name" and "nAme" logins creating two different mail directories. If # your user and domain names are in separate fields, you can return "username" # and "domain" fields instead of "user". # # The query can also return other fields which have a special meaning, see # http://wiki2.dovecot.org/PasswordDatabase/ExtraFields # # Commonly used available substitutions (see http://wiki2.dovecot.org/Variables # for full list): # %u = entire user@domain # %n = user part of user@domain # %d = domain part of user@domain # # Note that these can be used only as input to SQL query. If the query outputs # any of these substitutions, they're not touched. Otherwise it would be # difficult to have eg. usernames containing '%' characters. # # Example: # password_query = SELECT userid AS user, pw AS password \ # FROM users WHERE userid = '%u' AND active = 'Y' # #password_query = \ # SELECT username, domain, password \ # FROM users WHERE username = '%n' AND domain = '%d' password_query = SELECT email as user, password FROM virtual_users WHERE email='%u'; # userdb query to retrieve the user information. It can return fields: # uid - System UID (overrides mail_uid setting) # gid - System GID (overrides mail_gid setting) # home - Home directory # mail - Mail location (overrides mail_location setting) # # None of these are strictly required. If you use a single UID and GID, and # home or mail directory fits to a template string, you could use userdb static # instead. For a list of all fields that can be returned, see # http://wiki2.dovecot.org/UserDatabase/ExtraFields # # Examples: # user_query = SELECT home, uid, gid FROM users WHERE userid = '%u' # user_query = SELECT dir AS home, user AS uid, group AS gid FROM users where userid = '%u' # user_query = SELECT home, 501 AS uid, 501 AS gid FROM users WHERE userid = '%u' # #user_query = \ # SELECT home, uid, gid \ # FROM users WHERE username = '%n' AND domain = '%d' # If you wish to avoid two SQL lookups (passdb + userdb), you can use # userdb prefetch instead of userdb sql in dovecot.conf. In that case you'll # also have to return userdb fields in password_query prefixed with "userdb_" # string. For example: #password_query = \ # SELECT userid AS user, password, \ # home AS userdb_home, uid AS userdb_uid, gid AS userdb_gid \ # FROM users WHERE userid = '%u' # Query to get a list of all usernames. #iterate_query = SELECT username AS user FROM users EOF #echo -e "Mostrando el fichero recién configurado" #sleep 4 #more /etc/dovecot/dovecot-sql.conf.ext ######################################################################### # # #Cambiamos el dueño del grupo /etc/dovecot a nuestro usuari@ vmail # # # ######################################################################### chown -R vmail:dovecot /etc/dovecot chmod -R o-rwx /etc/dovecot echo -e "Permisos de /etc/dovecot cambiados\n" ############################################################################## # # #Configuramos el fichero /etc/dovecot/conf.d/10-master.conf # # # ############################################################################## #echo -e "Configurando archivo /etc/dovecot/conf.d/10-master.conf ..... \n" cat > /etc/dovecot/conf.d/10-master.conf <<EOF #default_process_limit = 100 #default_client_limit = 1000 # Default VSZ (virtual memory size) limit for service processes. This is mainly # intended to catch and kill processes that leak memory before they eat up # everything. #default_vsz_limit = 256M # Login user is internally used by login processes. This is the most untrusted # user in Dovecot system. It shouldn't have access to anything at all. #default_login_user = dovenull # Internal user is used by unprivileged processes. It should be separate from # login user, so that login processes can't disturb other processes. #default_internal_user = dovecot service imap-login { inet_listener imap { port = 0 } inet_listener imaps { #port = 993 #ssl = yes } # Number of connections to handle before starting a new process. Typically # the only useful values are 0 (unlimited) or 1. 1 is more secure, but 0 # is faster. <doc/wiki/LoginProcess.txt> #service_count = 1 # Number of processes to always keep waiting for more connections. #process_min_avail = 0 # If you set service_count=0, you probably need to grow this. #vsz_limit = 64M } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { #port = 995 #ssl = yes } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { mode = 0600 user = postfix group = postfix } # Create inet listener only if you can't use the above UNIX socket #inet_listener lmtp { # Avoid making LMTP visible for the entire internet #address = #port = #} } service imap { # Most of the memory goes to mmap()ing files. You may need to increase this # limit if you have huge mailboxes. #vsz_limit = 256M # Max. number of IMAP processes (connections) #process_limit = 1024 } service pop3 { # Max. number of POP3 processes (connections) #process_limit = 1024 } service auth { # auth_socket_path points to this userdb socket by default. It's typically # used by dovecot-lda, doveadm, possibly imap process, etc. Its default # permissions make it readable only by root, but you may need to relax these # permissions. Users that have access to this socket are able to get a list # of all usernames and get results of everyone's userdb lookups. unix_listener /var/spool/postfix/private/auth { mode = 0666 user = postfix group = postfix } unix_listener auth-userdb { mode = 0600 user = vmail #group = vmail } # Postfix smtp-auth #unix_listener /var/spool/postfix/private/auth { # mode = 0666 #} # Auth process is run as this user. user = dovecot } service auth-worker { # Auth worker process is run as root by default, so that it can access # /etc/shadow. If this isn't necessary, the user should be changed to # $default_internal_user. user = vmail } service dict { # If dict proxy is used, mail processes should have access to its socket. # For example: mode=0660, group=vmail and global mail_access_groups=vmail unix_listener dict { #mode = 0600 #user = #group = } } EOF #echo -e "Mostrando la configuración del archivo recién creado /etc/dovecot/conf.d/10-master.conf ..\n" #sleep 2 #more /etc/dovecot/conf.d/10-master.conf echo -e "A continuación se mostrará si los certificados se han creado correctamente...\n" ls /etc/dovecot/dovecot.pem ls /etc/dovecot/private/dovecot.pem ######################################################################### # # #Configurando el archivo /etc/dovecot/conf.d/10-ssl.conf # # # ######################################################################### #echo -e "Creando archivo /etc/dovecot/conf.d/10-ssl.conf....\n" cat > /etc/dovecot/conf.d/10-ssl.conf <<EOF ## ## SSL settings ## # SSL/TLS support: yes, no, required. <doc/wiki/SSL.txt> ssl = required # PEM encoded X.509 SSL/TLS certificate and private key. They're opened before # dropping root privileges, so keep the key file unreadable by anyone but # root. Included doc/mkcert.sh can be used to easily generate self-signed # certificate, just make sure to update the domains in dovecot-openssl.cnf ssl_cert = </etc/dovecot/dovecot.pem ssl_key = </etc/dovecot/private/dovecot.pem # If key file is password protected, give the password here. Alternatively # give it when starting dovecot with -p parameter. Since this file is often # world-readable, you may want to place this setting instead to a different # root owned 0600 file by using ssl_key_password = <path. #ssl_key_password = # PEM encoded trusted certificate authority. Set this only if you intend to use # ssl_verify_client_cert=yes. The file should contain the CA certificate(s) # followed by the matching CRL(s). (e.g. ssl_ca = </etc/ssl/certs/ca.pem) #ssl_ca = # Request client to send a certificate. If you also want to require it, set # auth_ssl_require_client_cert=yes in auth section. #ssl_verify_client_cert = no # Which field from certificate to use for username. commonName and # x500UniqueIdentifier are the usual choices. You'll also need to set # auth_ssl_username_from_cert=yes. #ssl_cert_username_field = commonName # How often to regenerate the SSL parameters file. Generation is quite CPU # intensive operation. The value is in hours, 0 disables regeneration # entirely. #ssl_parameters_regenerate = 168 # SSL ciphers to use #ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL EOF #echo -e "Mostrando fichero recién configurado: \n " #more /etc/dovecot/conf.d/10-ssl.conf echo -e "Dovecot configurado\n" echo -e "Postfix+Dovecot+MariaDB han sido configurados. Comenzamos\n" service dovecot restart service postfix restart
Publicado el 15/11/2013 a las 13:09