Configure a failover IP on FreeBSD

Jump toUpdate content

How to configure a failover IP on FreeBSD

Reviewed on 07 October 2023 • Published on 29 July 2021

This page shows you how to configure a failover IP on Dedibox servers running on FreeBSD.

Requirements:

You have an account and are logged into the Dedibox console
You have created a Dedibox dedicated server

Failover IP configuration on FreeBSD

Connect to your server using SSH.
Open the network configuration file in a text editor, for example nano:
```
nano /etc/rc.conf
```

Add the following line to the file, replace FAILOVER_IP with your failover IP address:

ifconfig_em0_alias0="inet FAILOVER_IP netmask 255.255.255.255"

Your modified configuration file should look like the following example:

ifconfig_em0="inet IP_ADDRESS netmask 255.255.255.0"
defaultrouter="IP_ADDRESS"
sshd_enable="YES"
ntpd_enable="YES"
ntpd_sync_on_start="YES"
syslogd_flags="-ss"
fsck_y_enable="YES"
ifconfig_em0_alias0="inet FAILOVER_IP netmask 255.255.255.255"

Save the file and exit the text editor.

Restart the network to activate the new IP address:

/etc/rc.d/netif restart && /etc/rc.d/routing restart