Hi all, after upgrading from Debian Wheezy to Jessie, bind9 receives "rndc reconfig" commands every 30 minutes. I've never seen this before. Some of my own scripts run "rndc restart/reload" after fiddling with network interfaces, but none of these is the source of the observed 30 minutes interval. There are also no cron jobs.
In the bind9 logs I see this: 24-Aug-2015 22:53:43.431 general: info: received control channel command 'reconfig' 24-Aug-2015 22:53:43.458 general: info: loading configuration from '/etc/bind/named.conf' ... [more than 350 lines reconfig log] Running tcpdump on the lo interface gives me this: root@prokyon:/etc/bind# tcpdump -i lo port 953 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes 21:23:35.071602 IP localhost.48466 > localhost.953: Flags [S], seq 3862717043, win 43690, options [mss 65495,sackOK,TS val 196635776 ecr 0,nop,wscale 5], length 0 21:23:35.071699 IP localhost.953 > localhost.48466: Flags [S.], seq 2391140312, ack 3862717044, win 43690, options [mss 65495,sackOK,TS val 196635776 ecr 196635776,nop,wscale 5], length 0 21:23:35.071821 IP localhost.48466 > localhost.953: Flags [.], ack 1, win 1366, options [nop,nop,TS val 196635776 ecr 196635776], length 0 21:23:35.075355 IP localhost.48466 > localhost.953: Flags [P.], seq 1:148, ack 1, win 1366, options [nop,nop,TS val 196635777 ecr 196635776], length 147 21:23:35.075435 IP localhost.953 > localhost.48466: Flags [.], ack 148, win 1399, options [nop,nop,TS val 196635777 ecr 196635777], length 0 21:23:35.115513 IP localhost.953 > localhost.48466: Flags [P.], seq 1:180, ack 148, win 1399, options [nop,nop,TS val 196635787 ecr 196635777], length 179 21:23:35.115583 IP localhost.48466 > localhost.953: Flags [.], ack 180, win 1399, options [nop,nop,TS val 196635787 ecr 196635787], length 0 21:23:35.116084 IP localhost.48466 > localhost.953: Flags [P.], seq 148:320, ack 180, win 1399, options [nop,nop,TS val 196635787 ecr 196635787], length 172 21:23:35.116130 IP localhost.953 > localhost.48466: Flags [.], ack 320, win 1433, options [nop,nop,TS val 196635787 ecr 196635787], length 0 21:23:37.092444 IP localhost.953 > localhost.48466: Flags [P.], seq 180:363, ack 320, win 1433, options [nop,nop,TS val 196636281 ecr 196635787], length 183 21:23:37.094097 IP localhost.48466 > localhost.953: Flags [F.], seq 320, ack 363, win 1433, options [nop,nop,TS val 196636281 ecr 196636281], length 0 21:23:37.130367 IP localhost.953 > localhost.48466: Flags [.], ack 321, win 1433, options [nop,nop,TS val 196636291 ecr 196636281], length 0 21:23:37.829134 IP localhost.953 > localhost.48466: Flags [F.], seq 363, ack 321, win 1433, options [nop,nop,TS val 196636465 ecr 196636281], length 0 21:23:37.829288 IP localhost.48466 > localhost.953: Flags [.], ack 364, win 1433, options [nop,nop,TS val 196636465 ecr 196636465], length 0 Is there a way to identify the source of these reconfig commands? It's really annoying as it messes up the log with 350 useless lines every 30 minutes. Thanks! Robert -- Robert Senger _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
