Well, here is something strange. The machine in question is on the network via a Network Manager, connection "eth0 home". "eth0 home" is a static-IP configuration for eth0 - the device IP, its netmask, router, DNSes, etc are all given explicitly in Network Manager for this connection. The IP is supposed to be 69.12.176.91. However, I noticed that instead the IP was 69.12.176.95. This is last IP of the 8-IP allowed range on my home network. It is what dhcp would have given, I think. But, I verified dhclient is not running - "killall dhclient" yields "dhclient: no process found". I also verified that in Network Manager, the active connection is "eth0 home" under "wired networks". There is no way the eth0 IP should have been 69.12.176.95. I disconnected "eth0 home", and then reconnected it (under Network Manager), and the IP went to 69.12.176.91. The problem with my machine dropping connections - ssh logins to remote hosts - seems to have stopped. I have now gone 12hrs without a dropped connection (ie: the "Read from remote host isildur: Connection reset by peer"). So there is nowtwo questions: How did this happend? and How would it cause the dropped connections?
I do use dhclient when I use this laptop with WiFi networks, and also one wired network - but never for my home network, "eth0 home", which is where this problem was happening - and dhclient was not running. How did the IP get set to the wrong value? Does hibernate & thaw kill a running version of dhclient when it shuts down the network connection(s)? If dhclient survived a hibernate & thaw, could it have changed the eth0 IP, then exited, leaving no trace that it was responsible? Even so, simply having the wrong IP on eth0 shouldn't cause the network connections to be periodically dropped, or so I would think. The only issue I can imagine is that hostname reports fingon.cosmology.name, and nslookup of fingon.cosmology.name yields 69.12.176.91. Could having the wrong IP for one's hostname cause network connections to be dropped? I would not think so. But, clearly something strange & buggy is going on. Anyone have any insight? Thanks, Greg Huey -- Loosing connections with "Connection reset by peer" message https://bugs.launchpad.net/bugs/522819 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs