시스템 fail or limit 등의 에러 메세지 로그 문의 > LINUX 자료실

messages 로그파일에 fail or limit 등의 에러 메세지가 지속적으로 발생.
해당 로그들의 분석 문의

분석 내용
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Nov 19 19:34:12 localhost xinetd[29427]: START: whostif pid=20161 from=::ffff:172.20.241.23
Nov 19 19:34:12 localhost xinetd[29427]: FAIL: whostif per_source_limit from=::ffff:172.20.241.23
Nov 19 19:34:13 localhost xinetd[29427]: EXIT: whostif status=0 pid=20115 duration=14(sec)
Nov 19 19:34:13 localhost xinetd[29427]: START: whostif pid=20163 from=::ffff:172.20.241.23
Nov 19 19:34:13 localhost xinetd[29427]: EXIT: whostif status=0 pid=20163 duration=0(sec)
Nov 19 19:34:14 localhost xinetd[29427]: START: whostif pid=20168 from=::ffff:172.20.241.23
Nov 19 19:34:14 localhost xinetd[29427]: FAIL: whostif per_source_limit from=::ffff:172.20.241.23
Nov 19 19:34:14 localhost xinetd[20169]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:14 localhost xinetd[20169]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:14 localhost xinetd[20169]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:14 localhost xinetd[20169]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:14 localhost xinetd[29427]: FAIL: whostif per_source_limit from=::ffff:172.20.241.23
Nov 19 19:34:14 localhost xinetd[20170]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:14 localhost xinetd[20170]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:14 localhost xinetd[20170]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:14 localhost xinetd[20170]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:14 localhost xinetd[29427]: FAIL: whostif per_source_limit from=::ffff:172.20.241.23
Nov 19 19:34:14 localhost xinetd[20171]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:14 localhost xinetd[20171]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:14 localhost xinetd[20171]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:14 localhost xinetd[20171]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:15 localhost xinetd[29427]: FAIL: whostif per_source_limit from=::ffff:172.20.241.23
Nov 19 19:34:15 localhost xinetd[20172]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:15 localhost xinetd[20172]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:15 localhost xinetd[20172]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:15 localhost xinetd[20172]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:15 localhost xinetd[29427]: FAIL: whostif per_source_limit from=::ffff:172.20.241.23
Nov 19 19:34:15 localhost xinetd[20173]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:15 localhost xinetd[20173]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:15 localhost xinetd[20173]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:15 localhost xinetd[20173]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:16 localhost xinetd[29427]: FAIL: whostif per_source_limit from=::ffff:172.20.241.23
Nov 19 19:34:16 localhost xinetd[20174]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:16 localhost xinetd[20174]: read: Connection reset by peer (errno = 104)
Nov 19 19:34:16 localhost xinetd[20174]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:16 localhost xinetd[20174]: Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response
Nov 19 19:34:16 localhost xinetd[29427]: FAIL: whostif per_source_limit from=::ffff:172.20.241.23

FAIL: whostif per_source_limit from=::ffff:172.20.241.23
위 에러는 xinerd.conf의 per_source limitation 설정으로 인한 에러이며, 시스템 부하와 필요여부를 확인하여
per_source 값을 조정하여 해소 할수 있다.

Connection reset by peer (errno = 104)
위 에러는 whostif process가 동작중이지만 connection은 종료된 상태에서 출력된다
따라서, 해당 서비스 어플리케이션에서 disconnection 모니터링 부분을 확인하여 에러를 조절할 수 있다
Failed to contact identity server at ::ffff:172.20.241.23: error while receiving response 해당 메세지도
whostif 서버에 접속이 실채하면서 발생한 에러로 보인다.