Why can I PING with my new DSL modem on an inactive account, but nothing else? [more inside]
posted by j0hnpaul on Nov 8, 2009 - 10 answers

How can I analyse and understand what's going on with my PeerGuardian logs? How can I understand various network commands (e.g. ping, traceroute etc.)? [more inside]
posted by djgh on Apr 12, 2009 - 5 answers

Is there a program that can find the ip addresses of many network devices on a corporate internal network, and create a neat list automatically? [more inside]
posted by BigLankyBastard on Nov 20, 2007 - 16 answers

Is there a database or service that can take an IP address and return the name of the ISP that owns it? [more inside]
posted by b1tr0t on Jun 10, 2006 - 16 answers

On my WinXP Pro laptop I can ping, nslookup, and tracert to whatever address I like, but no browser can load any pages, even by IP address. I get connection timeouts 100% of the time. Why, and how can I fix it? [more inside]
posted by Songdog on May 29, 2006 - 14 answers