Networks

I had a Bacula job fail today: Is bacula-sd running on crey? Yes it is. Can I telnet to port 9103 on crey? Yes, I can: $ telnet 10.5.0.20 9103 Trying 10.5.0.20… Connected to crey.example.org. Escape character is ‘^]’. What about from the nyi-fd server? Can I telnet from there? $ telnet 10.5.0.20 9103 Trying 10.5.0.20… telnet: connect to address 10.5.0.20: Operation timed out telnet: Unable to connect to remote host I started […]

It seems there is a problem between my home and my server in Austin: $ traceroute supernews.unixathome.org traceroute to supernews.unixathome.org (206.127.23.226), 64 hops max, 40 byte packets 1 L100.PHLAPA-VFTTP-84.verizon-gni.net (98.114.194.1) 6.680 ms 3.669 ms 4.230 ms 2 G0-6-2-2.PHLAPA-LCR-21.verizon-gni.net (130.81.109.140) 3.756 ms 4.053 ms 4.384 ms 3 ae0-0.PHIL-BB-RTR1.verizon-gni.net (130.81.209.178) 3.718 ms 3.787 ms 4.293 ms 4 0.xe-7-1-0.BR1.IAD8.ALTER.NET (152.63.3.85) 11.601 ms 11.975 ms 11.818 ms 5 xe-2-1-0.er2.iad10.us.above.net (64.125.13.173) 11.294 ms 11.610 ms 11.789 ms 6

Things are looking better now: bast.example.org (0.0.0.0) Tue Oct 16 19:43:16 2012 Keys: Help Display mode Restart statistics Order of fields quit Packets Pings Host Loss% Snt Last Avg Best Wrst StDev 1. L100.PHLAPA-VFTTP-84.verizon-gni.net 0.0% 253 5.6 7.3 3.2 143.0 15.6 2. G0-6-2-2.PHLAPA-LCR-22.verizon-gni.net 0.0% 252 4.9 5.1 3.0 36.2 4.1 3. so-3-1-0-0.PHIL-BB-RTR2.verizon-gni.net 0.0% 252 5.4 11.8 3.0 136.5 23.2 4. so-0-2-0-0.NWRK-BB-RTR2.verizon-gni.net 0.0% 252 62.9 21.4 5.5 130.4 24.8 xe-0-1-0-0.NWRK-BB-RTR2.verizon-gni.net xe-1-1-8-0.NWRK-BB-RTR2.verizon-gni.net xe-1-0-4-0.NWRK-BB-RTR2.verizon-gni.net 5. so-7-2-0-0.NWRK-CORE-RTR2.verizon-gni.net

Here’s packet loss to one of the Verizon DNS servers: My traceroute [v0.82] bast.example.org (0.0.0.0) Tue Oct 16 12:58:53 2012 Keys: Help Display mode Restart statistics Order of fields quit Packets Pings Host Loss% Snt Last Avg Best Wrst StDev 1. L100.PHLAPA-VFTTP-84.verizon-gni.net 10.7% 140 4.3 5.2 3.2 42.2 3.8 2. G0-6-2-2.PHLAPA-LCR-21.verizon-gni.net 8.6% 140 3.2 5.4 3.1 30.5 3.7 3. so-9-0-0-0.PHIL-BB-RTR1.verizon-gni.net 4.3% 140 5.9 11.3 3.2 89.0 14.6 4. so-7-1-0-0.PHIL-CORE-RTR1.verizon-gni.net 7.9% 140 3.7 5.8

This is interesting. From my gateway to one of my servers, the packet loss is pretty big: bast.example.org (0.0.0.0) Tue Oct 16 12:15:36 2012 Keys: Help Display mode Restart statistics Order of fields quit Packets Pings Host Loss% Snt Last Avg Best Wrst StDev 1. L100.PHLAPA-VFTTP-84.verizon-gni 3.4% 119 4.8 6.1 3.2 60.1 7.4 2. G0-6-2-2.PHLAPA-LCR-21.verizon-g 8.4% 119 5.5 5.6 3.1 33.0 4.4 3. 130.81.199.18 4.2% 119 5.6 16.6 3.0 228.0 33.6 4. 0.xe-7-1-0.BR1.IAD8.ALTER.NET

I’m not sure why I can’t get to the internet from my systems inside my LAN. The gateway can. Interesting: On the client box, I can’t see any IPv6 traffic leaving the except icmp. The following demonstrates: Setting up a $ ifconfig em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC> ether 00:1b:21:51:ab:2d inet 10.55.0.44 netmask 0xffffff00 broadcast 10.55.0.255 inet6 fe80::21b:21ff:fe51:ab2d%em0 prefixlen 64 scopeid 0x1 inet6 2001:470:1f07:b80:21b:21ff:fe51:ab2d prefixlen 64 autoconf nd6 options=3<PERFORMNUD,ACCEPT_RTADV> media: Ethernet autoselect

It appears that FiOS has stopped blocking port 80. I discovered this last night when I accidentally pasted a URL for http://beta.freebsddiary.org/ into an IRC channel. That website used to be publicly available, until Dec 2007 when I moved to Philadelphia and started with FiOS. Sometime after that, things started work. Looking back in my logs, the change occurred on 16 April 2009.