One particular Mac on my home network is experiencing really slow internet connectivity. I have tried a lot of different stuff so far... [more inside]
posted by scarabic on Aug 15, 2008 - 10 answers

Why won't my shiny new Windows 2008 server let its TCP connections go? [more inside]
posted by bhance on Aug 13, 2008 - 5 answers

DHCP and switch VLAN configuration help needed. [more inside]
posted by odinsdream on Nov 30, 2007 - 9 answers

My work's firewall recently began blocking outbound traffic that isn't on ports 22, 80, and 443, and I'd like to use my home router (running openwrt) to proxy my personal IMAP email so I can read it from work. [more inside]
posted by whir on Nov 5, 2007 - 9 answers

Please help me set up reverse DNS properly for an XServe connected to a network I manage. [more inside]
posted by odinsdream on Jul 27, 2007 - 10 answers

Why is my (windows) hard drive light blinking every second? I've started in msconfig "diagnostic mode - basic devices and services only" and it still does it . . . [more inside]
posted by petebest on Feb 23, 2007 - 7 answers

SQLServer Express remote connection problems. Please hope me! [more inside]
posted by derbs on Nov 2, 2006 - 9 answers

I'd like a picture of just how much bandwidth the various TCP/UDP protocols (FTP, HTTP, NNTP, BitTorrent) take up along some large sample. Percent distributions would be fantastic. Anyone know where to get this data? My kung-fu helps me not.
posted by k7lim on Sep 6, 2006 - 4 answers

When I use BitTorrent on XP SP2, Windows "limits the number of concurrent, incomplete outbound TCP connection attempts" and (I think) slows me down, because they might be coming from a "malicious program". How can I stop it doing that and make it treat me like a grown-up? Is it in the registry somewhere?
posted by Mephistopheles on Aug 23, 2005 - 9 answers

FTP on TCP over IP: As far as i can see, ftp should transfer files perfectly. If you trace the responsibility for validation through the relevant RFCs everything should be handled by the TCP checksum. Yet "everyone" knows that ftp regularly transfers corrupt files. Why? More generally, where is a good forum for discussing this kind of thing (I'm also interested in, for example, multiple parallel ftps (eg gridftp) and the possibility of checking an "instantaneous" checksum value at various points during transfer to detect errors as soon as possible)?
posted by andrew cooke on Nov 24, 2004 - 21 answers