Just got back to work to find the network frozen again so ran the following tests host seems as if DNS is working and I can't run tcptraceroute because right now the network is behaving but have installed it and will run it the next time the network freezes. Stripes Is there anything odd appearing in dmesg?
dmesg looks weird to me but I don't know enough to know what it is trying to tell me. [96377.098569] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=1726 DF PROTO=TCP SPT=10002 DPT=38193 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96397.271477] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=1878 DF PROTO=TCP SPT=10002 DPT=58486 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96417.093354] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=2022 DF PROTO=TCP SPT=10002 DPT=40273 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96436.994151] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=40 TOS=0x00 PREC=0x00 TTL=125 ID=2170 DF PROTO=TCP SPT=10002 DPT=52514 WINDOW=0 RES=0x00 RST URGP=0 [96457.439909] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=2338 DF PROTO=TCP SPT=10002 DPT=49735 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96477.278106] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=2492 DF PROTO=TCP SPT=10002 DPT=39062 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96497.097806] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=2642 DF PROTO=TCP SPT=10002 DPT=63464 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96517.264219] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=2801 DF PROTO=TCP SPT=10002 DPT=41087 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96537.157160] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=40 TOS=0x00 PREC=0x00 TTL=125 ID=2981 DF PROTO=TCP SPT=10002 DPT=58972 WINDOW=0 RES=0x00 RST URGP=0 [96557.000166] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=3124 DF PROTO=TCP SPT=10002 DPT=51388 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96577.021152] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=56 TOS=0x00 PREC=0x00 TTL=125 ID=3283 DF PROTO=TCP SPT=10002 DPT=34476 WINDOW=65535 RES=0x00 ACK SYN URGP=0 [96597.425777] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=3437 DF PROTO=TCP SPT=10002 DPT=38699 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96617.245539] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=3582 DF PROTO=TCP SPT=10002 DPT=40359 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96637.036939] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=3732 DF PROTO=TCP SPT=10002 DPT=54144 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [96657.206130] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:0f:ed:ee:c0:08:00 SRC=131.172.8.83 DST=131.172.182.35 LEN=60 TOS=0x00 PREC=0x00 TTL=125 ID=3884 DF PROTO=TCP SPT=10002 DPT=37665 WINDOW=8192 RES=0x00 ACK SYN URGP=0 [97797.065193] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:df:5b:b6:40:08:00 SRC=69.175.126.170 DST=131.172.182.35 LEN=74 TOS=0x00 PREC=0x00 TTL=46 ID=0 DF PROTO=UDP SPT=40369 DPT=5353 LEN=54 [102387.437169] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:df:5b:b6:40:08:00 SRC=213.131.66.37 DST=131.172.182.35 LEN=44 TOS=0x00 PREC=0x00 TTL=41 ID=0 DF PROTO=ICMP TYPE=8 CODE=0 ID=4396 SEQ=256 [107008.373813] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:df:5b:b6:40:08:00 SRC=10.11.250.1 DST=131.172.182.35 LEN=61 TOS=0x00 PREC=0x00 TTL=125 ID=19923 PROTO=ICMP TYPE=8 CODE=0 ID=289 SEQ=18360 [107228.020982] [UFW BLOCK] IN=eth0 OUT= MAC=84:2b:2b:b4:ee:09:00:17:df:5b:b6:40:08:00 SRC=101.44.1.135 DST=131.172.182.35 LEN=48 TOS=0x00 PREC=0x00 TTL=103 ID=38101 PROTO=TCP SPT=276 DPT=22 WINDOW=65535 RES=0x00 SYN URGP=0
When it's not working what does this command say?
host google.com
host seems as if DNS is working host google.com google.com has address 74.125.237.6 google.com has address 74.125.237.7 google.com has address 74.125.237.8 google.com has address 74.125.237.9 google.com has address 74.125.237.14 google.com has address 74.125.237.0 google.com has address 74.125.237.1 google.com has address 74.125.237.2 google.com has address 74.125.237.3 google.com has address 74.125.237.4 google.com has address 74.125.237.5 google.com has IPv6 address 2404:6800:4006:800::1005 google.com mail is handled by 10 aspmx.l.google.com. google.com mail is handled by 20 alt1.aspmx.l.google.com. google.com mail is handled by 30 alt2.aspmx.l.google.com. google.com mail is handled by 40 alt3.aspmx.l.google.com. google.com mail is handled by 50 alt4.aspmx.l.google.com. That'll say whether DNS is affected (or not).
Can you install tcptraceroute and then when your connection is not
working can you also try:
sudo tcptraceroute -n 74.125.237.142
sudo tcptraceroute -n 74.125.237.142 Selected device eth0, address 131.172.182.35, port 43046 for outgoing packets Tracing the path to 74.125.237.142 on TCP port 80 (http), 30 hops max 1 131.172.182.251 0.267 ms 0.215 ms 0.216 ms 2 * * * 3 * * * 4 * * * 5 * * * 6 * * * 7 * * * 8 * * * 9 * * * 10 * * * 11 * * * 12 * * * 13 * * * 14 * * * 15 * * * 16 * * * 17 * * * 18 * * * 19 * * * 20 * * * 21 * * * 22 * * * 23 * * * 24 * * * 25 * * * 26 * * * 27 * * * 28 * * * 29 * * * 30 * * * Destination not reached
to see what's going on with a TCP connection to Google?
Thanks Stripes
cheers, Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC _______________________________________________ luv-main mailing list luv-main@luv.asn.au http://lists.luv.asn.au/listinfo/luv-main