Sudo dnf install postfix.
Postfix mail server configuration in linux step by step in centos.
Systemctl l status postfix journalctl xn postconf n.
Postfix is a common mail server many large distributions are shipped with postfix installed by default.
Setting up postfix smtp relay on centos rhel first let s install postfix smtp server on centos rhel with the following command.
Make changes to the following lines.
I tested this setup on centos 64 bit server.
Determine local mail delivery method.
Make postfix as default mta for your system using the following command.
Step 6 configure postfix mail server.
Email protected service iptables stop email protected service ip6tables stop email protected chkconfig iptables off email protected chkconfig ip6tables off.
The default configuration allows local mailing only but that in itself is very useful on a machine used by many users and even if there is no such traffic many services dump their reports and messages into e mails which is delivered to the root user locally so the sysadmin will be.
How to configure dns server in rhel 7 step by step.
After package installation continue with postfix configuration.
However if you want send receive mails to outside you should configure the mail server with a public ip and request your isp to configure the mx record of your mail server in their dns server.
Install bind centos 7 or centos 8.
How to configure dns server in rhel 7 or rhel 8 step by step.
Step 4 follow the below steps one by one for creation.
Edit the master cf file.
Restart the service on both servers for the changes to take effect.
Alternatives set mta usr sbin sendmail postfix step 2 configure postfix.
First create ssl certificate for encryption.
Root mail mkdir etc postfix ssl root mail cd etc postfix ssl root krizna ssl openssl genrsa des3 out server key 2048.
The mail server should contain a valid mx record in the dns server.
Although the same steps should work on rhel and scientific linux 7 distributions.
Use below command to do the same else skip it.
Dns server configuration in linux step by step centos.
Let s start postfix configuration.
Alternatives set mta usr sbin postfix if above command not work and you get the output as usr sbin postfix has not been configured as an alternative for mta.
It is time we configure postfix mail server.
If postfix is already running on your server then skip installing postfix.
Firewall and selinux should be disabled.
Edit the main cf file.
Create an aliases table.
Set postfix selinux permission.
Several steps are necessary to configure the postfix server the basic steps involved in this process are.
The above selinux boolean will allow postfix to write to the mail spool in the central server.
Configure postfix mail server centos rhel 7 8 now we are done with all the pre requisites.
Dns server configuration in linux step by step centos.
Systemctl restart postfix if postfix does not start correctly you can use following commands to troubleshoot.
Configure forward zone file and reverse zone file using named chroot using centos or rhel 7.
