Block Google Chat in a Network
To block google chat in your office network you just need to block below two URL's on OpenDNS server,
talk.google.com
talkx.l.google.com
Check my below guide on OpenDNS configuration,
To block google chat in your office network you just need to block below two URL's on OpenDNS server,
talk.google.com
talkx.l.google.com
