04 How to Allow Mail Server Samba FTP and NFS In Firewall | Allow SMTP IMAPs and POP3 in Firewall

How to Allow Mail Server Samba, FTP and NFS in Firewall | Allow SMTP IMAPs and POP3 in Firewall

tags:  How to allow mail server in firewall, allow samba service in firewall, firewall-cmd --add-services, allow NFS and FTP, Allow SMTP, Imaps, POP3

Q : How to Allow Mail service in firewall using firewall-cmd command ?

Before we start to add mail service in firewall we will check all services and  allow service in active firewall zone,below command we will use

firewall-cmd --get-services
firewall-cmd --list-all

We will get info about all mail services, means which ports is used by service and allow by firewall.

firewall-cmd --info-service=smtp

firewall-cmd --info-service=smtps

firewall-cmd --info-service=smtp-submission

firewall-cmd --info-service=pop3
firewall-cmd --info-service=pop3s

firewall-cmd --info-service=imap

firewall-cmd --info-service=imaps

It will display,  25/tcp port  used by smtp and 465/tcp by smtps and so forth

To allow mail service like smtp and smtps in firewall

firewall-cmd   --add-service=smtp --permanent
firewall-cmd   --add-service=smtps --permanent

We require to allow another service like smtp-submission for mail access

firewall-cmd   --add-service=smtp-submission --permanent

To allow POP3 and POP3s Service in Firewall

firewall-cmd   --add-service=pop3 --permanent
firewall-cmd   --add-service=pop3s --permanent

To allow IMAP and IMAPs Service in Firewall

firewall-cmd   --add-service=imap --permanent
firewall-cmd   --add-service=imaps --permanent

After the adding we will reload the firewall to update all changes,

firewall-cmd --reload

Now we will check all services to added in firewall

firewall-cmd --list-all

Q : How to Allow SAMBA Server in Firewall ?

We will allow samba and samba-client service for accessing a samba server

To information  about samba service

firewall-cmd --info-service=samba
firewall-cmd --info-service=samba-client

Q : Which ports is using by samba server ?

Samba is using following tcp and udp ports

137/tcp

138/udp

139/tcp

445/tcp

To allow SMB service in firewall

firewall-cmd   --add-service=imap --permanent
firewall-cmd   --add-service=imaps --permanent

To Reload firewall service

firewall-cmd --reload

Now we will check all services to added in firewall

firewall-cmd --list-all

Allow NFS Server in Firewall

To info about NFS service

firewall-cmd --info-service=nfs

NFS use 2049/tcp port

To allow SMB service in firewall

firewall-cmd   --add-service=nfs --permanent

After the adding we will reload the firewall to update all changes,

firewall-cmd --reload

Now we will check all services to added in firewall

firewall-cmd --list-all

 

Allow FTP Server in Firewall

To get info about FTP services

firewall-cmd --info-service=ftp

firewall-cmd   --add-service=ftp --permanent

firewall-cmd --reload

firewall-cmd --list-all

To know about more :

1 -  Basic of Firewalld Service, Installation and manual

2 -  Working With Firewall Zone

3 -  Create New Custom Zone and Add Service

4 -  Allow Mail Samba, FTP, NFS Service in Firewall

Thanks,