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# Change server hostname

To change server hostname after iRedMail installation, please update below files to replace old hostname by the new one.

## System config files

- `/etc/hosts`
- RHEL/CentOS:
  - for RHEL/CentOS 6: `/etc/sysconfig/network`
- Debian/Ubuntu:
  - `/etc/hostname`
  - `/etc/mailname`

## Postfix

- `/var/spool/postfix/etc/hosts`
- `/etc/postfix/main.cf` (Linux/OpenBSD) or `/usr/local/etc/postfix/main.cf` (FreeBSD)

## Amavisd

- RHEL/CentOS, OpenBSD: `/etc/amavisd/amavisd.conf`
- Debian/Ubuntu: `/etc/amavis/conf.d/50-user`
- FreeBSD: `/usr/local/etc/amavisd.conf`

## SOGO

- `/etc/httpd/conf.d/SOGo.conf`
- `/etc/apache2/conf.d/SOGo.conf`
- `/etc/apache2/conf-available/SOGo.conf`

## Deprecated Components

### Apache

- RHEL/CentOS: `/etc/httpd/conf/httpd.conf`
- Debian/Ubuntu: `/etc/apache2/apache.conf`

## OpenDMARC:

- Linux/OpenBSD: `/etc/opendmarc.conf` (parameter `AuthservID` and `TrustedAuthservIDs`)
- FreeBSD: `/usr/local/etc/opendmarc.conf` (parameter `AuthservID` and `TrustedAuthservIDs`)