Join Sean Colins for an in-depth discussion in this video Troubleshooting client-side firewall issues, part of Mac OS X Server 10.6 Snow Leopard: DNS and Network Services.
Since I showed you how to configure the application firewall and turn it on,…I think it's only fair that I show you where its log file is and how to read it.…So, to do that, we're going to go into Terminal once again and we're just going…to type open /var/log/alf.log.…When that opens, it'll open up in console and we'll see here that we have our…application firewall log.…One of the last things that it mentions is that it's creating…the appfirewall.log.…
So, we're going to go down here and look at the rest of what it lists.…So, when you read that log, it's simply going to tell you about allowed or…denied traffic associated with an application name and where the traffic came from.…If the log is telling you that it's denying traffic you didn't intend, take a…look at that application firewall configuration again to make sure it's what you wanted.…If your system is blocked from administering the server still at this point,…you're going to want to go back to your server using the local connection that…
- Deploying, troubleshooting, and understanding OS X 10.6 DNS server
- Understanding and configuring OS X and OS X Server-based firewalls
- Fixing server- and client-side firewalls
- Configuring and troubleshooting DHCP
- Setting up and troubleshooting a VPN server