I know that postfix has a master process, which needs to be run as root because otherwise binding on port 25 would not be possible. However, I thought that postfix does spawn subprocesses under user postfix to actually deliver emails (via smtp).Any ideas why the iptables rule does not work? Does the user postfix not send emails (are they delivered instead via user root)? What am I missing here?
You appear to be delivering outgoing mail through an smtp client that runs with unpriv=n, which is postfix master.cf language for that service runs as root.The configs you posted do not prove that - but my guess is thats what your transport map is configured to use.
I highly recommend that after getting rid of Plesk, you start from a fresh set of configurations from your favourite distro and only add the modifications you need. Plesk is notorious for making configurations changes that are far from easily secured&maintained outside the scope of plesk, if possible at all you should write your own, not copying the plesk ones.
Save and close the file. Then you should edit the /etc/postfix/sasl_passwd file and add the SMTP credentials for the fallback relay host just like above. Finally, restart Postfix for the changes to take effect.
Save and close the file. Then in the /etc/postfix/transport file, you can define relay rules for the old email addresses like below. (Note: You can also use the relay keyword instead of smtp. They are both correct in this case.)
This is a great tutorial! As usual! I have been waiting for this. I only have one question remaining, I use iRedmail. The transport maps are where expected. How do I edit the mysql database to redirect a domain. Is it done in the cf file or directly to the db? What is the format?Many thanks
The text assumes that the Postfix main.cf and master.cfconfiguration files are stored in directory /etc/postfix. You canuse the command "postconf config_directory" to find out theactual location of this directory on your machine.
Inspect master.cf for any processes that have chroot operationnot turned off. If you find any, save a copy of the master.cf file,and edit the entries in question. After executing the command"postfix reload", see if the problem has gone away.
The basic configuration file of Fail2ban is available at /etc/fail2ban/local.conf. However, to make customization we need to use a local config file called /etc/fail2ban/jail.local
FirewallGroupDescriptionInitial SettingsConfigure firewall testing, UI security, and auto update settings.Port SettingsConfigure incoming and outgoing ipv4 port settings.General SettingsConfigure the firewall general settings.SMTP SettingsBlock outgoing SMTP except for root, qmail/postfix and mailman.Port Flood SettingsConfigure SYN flood, connection limit, and portflood protection.Logging SettingsConfigure the logging settings.Portknocking SettingsConfigure port knocking ports, protocols, and timeouts.Port / IP RedirectionConfigure a list of port and/or IP address assignments to direct traffic to alternative ports/IP addresses.Disable Server IPsConfigure a list of server configured IP addresses for which you do not want to allow any incoming or outgoing traffic.Firewall UpdateCheck for updates to the iptables firewall.Login Failure DaemonGroupDescriptionLogin Failure BlockingConfigure application specific trigger level blocking and alerts for use by the login failure daemon.Reporting SettingsConfigure email alert and X-ARF report settings.Netblock SettingsConfigure temporary to permanent IP and network class blocking.Block Lists & DynDNSConfigure global lists, dynamic DNS, and blocklist settings.Country SettingsBlock or allow specific countries through the firewall.Directory WatchingConfigure the checking of directories for suspicious files.Tracking SettingsConfigure tracking of distributed Attacks, logins, connections, processes, port scans and user accounts.Messenger ServiceConfigure the messenger service to display a message to a blocked IP address.LFD ClusteringConfigure a group of servers to share blocks and configuration changes.Log ScannerConfigure an email summary of the log lines of logs.Statistics SettingsConfigure server statistics gathering.OtherGroupDescriptionSyslog SettingsConfigure the log files that are allowed to be viewed in the system logs area.RBL Check SettingsA list of optional entries for the RBL check.Binary LocationsConfigure OS specific binary locations.Log LocationsConfigure log file locations for use by the login failure daemon.Port SettingsConfigure port settings for use by the login failure daemon.Debug SettingsConfigure the login failure daemon debug level.Web ServerGroupDescriptionPolicy SettingsConfigure the web server access policy settings.Webmail PolicyConfigure the webmail access policy.Policy MigratorMigrate Apache web server access policies.Panel ApplicationGroupDescriptionApplication SettingsConfigure the panel application settings.Geolocation SettingsConfigure the geolocation database settings.DNS and DNSBL SettingsConfigure the DNS and DNS blocklist settings.Settings ManagementImport, export or reset application settings.
This article's sole purpose is to provide information regarding the services that Parallels Plesk interacts with. Below, you will find the services' configuration and log file locations, which may be useful in troubleshooting errors on your VPS.
I have problem with postfix on debian after upgrading from squeeze to wheezy.Postfix was configured to sign messages using dkim-filter. Before update, everything was working flawlessly, now it fails on connection with service (tcp or unix sockets).I thought that maybe it was because of debian switch to opendkim, so I removed dkim-filter and installed opendkim - same problem. I even tried setting unix file socket connection instead of tcp option - same problem:
(I assume that Postfix and Opendkim are already installed, integratedwith each other and the only warning you are getting is 'connect to Milter service local:/var/spool/postfix/opendkim/opendkim.sock: No such file or directory')
Although not all email service providers adhere to these recommendations, these are idealisations that we should all be working to achieve in order to eliminate the confusion surrounding SMTP port configuration.
On some filesystems that do not support extended attributes, it may not bepossible to run pgAdmin without specifying a value for PGADMIN_LISTEN_PORTthat is greater than 1024. In such cases, specify an alternate port whenlaunching the container by adding the environment variable, for example:
This file can be used to override configuration settings in pgAdmin. Settingsfound in config.py can be overridden with deployment specific values ifrequired. Settings in config_local.py will also override anything specified inthe container environment through PGADMIN_CONFIG_ prefixed variables.
If this file is mapped, server definitions found in it will be loaded at launchtime. This allows connection information to be pre-loaded into the instance ofpgAdmin in the container. Note that server definitions are only loaded on firstlaunch, i.e. when the configuration database is created, and not on subsequentlaunches using the same configuration database.
If Nginx is also running in a container, there is no need to map the pgAdminport to the host, provided the two containers are running in the same Dockernetwork. In such a configuration, the proxy_pass option would be changed topoint to the pgAdmin container within the Docker network.
Note that the TCP/IP port has not been mapped to the host as it was in theNginx example, and the container name has been set to a known value as it willbe used as the hostname and may need to be added to the DNS zone file.
The following configuration will listen on ports 80 and 443, redirecting 80 to443, using the default certificate shipped with Traefik. See the Traefikdocumentation for options to use certificates from LetsEncrypt or other issuers.
If you don't know the users' passwords, you'll need to reset them to passwords that you do know, and then enter those passwords in the migration file. This is inconvenient for users, but there's no way around this unless your source email system supports using superuser credentials. 2b1af7f3a8