Hi guys,
I have the following messages shown up in dmesg on a number of our servers. I have looked on the internet and the only similar errors seem to suggest a port scanner. Can anyone else shed any light, also is there a way of turning more verbose logging on for rlogin as the error messages aren't very useful. Rlogin needs to stay enabled as its a business requirement.
Nov 24 09:41:52 *removed* rlogind[29640]: [ID 776819 daemon.error] failed to receive protocol zero byte
Nov 24 09:42:57 *removed* rlogind[29699]: [ID 776819 daemon.error] failed to receive protocol zero byte
Nov 24 09:53:44 *removed* rlogind[142]: [ID 776819 daemon.error] failed to receive protocol zero byte
Nov 24 09:55:40 *removed* rlogind[276]: [ID 776819 daemon.error] failed to receive protocol zero byte
Nov 24 10:15:28 *removed* rlogind[1150]: [ID 776819 daemon.error] failed to receive protocol zero byte
Nov 24 10:23:08 *removed* rlogind[1410]: [ID 776819 daemon.error] failed to receive protocol zero byte
Nov 24 10:23:09 *removed* rlogind[1414]: [ID 776819 daemon.error] failed to receive protocol zero byte
Nov 24 14:10:10 *removed* rlogind[7737]: [ID 776819 daemon.error] failed to receive protocol zero byte
Nov 24 14:11:36 *removed* rlogind[7864]: [ID 776819 daemon.error] failed to receive protocol zero byte
Nov 24 14:55:53 *removed* rlogind[9107]: [ID 776819 daemon.error] failed to receive protocol zero byte