Author: Ugo Viti [email protected]

izPing is a Multihomed Internet links tester, failover and recovery bash script for network balanced setups. When called from izBalancing it automate the process of failover and recovery of connected Internet lines.

This script should not run standalone, but must be called from izbalancing script

• GNU/Linux Firewall running Kernel >=2.6.10 (with iptables module CONNMARK available)
• Bash Shell >= 2.0
• Standard GNU/Linux coreutils utilities (cat, echo, grep, if, etc...)
• GNU Version of awk and sed utilities
• GNU/Linux Netfilter user space utilities (iptables >= 1.2.11)
• iproute2 utilities
• Two or more Internet connections
• An ethernet card for each ISP Router
• izBalancing configured and running (http://www.initzero.it/products/opensource/izbalancing)

• Download and configure izbalancing
• copy the izping script into /etc/rc./init.d/ and run:

   chmod 755 /etc/rc./init.d/izping
   chkconfig izping off

• edit the configuration variables inside izping script. Generally is needed to customize only MAILTO variable
• configure and start izbalancing, izping should start inside izbalancing
• look into logs if izping is running: tail -f /var/log/izping.log