K'隨手記

在/var/log/maillog中發現下列錯誤訊息：

Nov 27 08:29:05 dns dccproc[2665]: no working DCC servers dcc1.dcc-servers.net dcc2.dcc-servers.net dcc3.dcc-servers.net ... at 127.0.0.1

執行dcc相關指令進行除錯

執行後產生一堆undefined name or wrong IP version錯誤訊息

[root@dns log]# cdcc info

# 11/27/13 10:11:38 CST  /var/dcc/map

# Re-resolve names after 10:29:05  

# 1 total, 0 working servers

# continue not asking DCC server 31 seconds after 1 failures

IPv6 on   version=3

dcc1.dcc-servers.net,-      RTT+1000 ms  anon

#   undefined name or wrong IP version

dcc2.dcc-servers.net,-      RTT+1000 ms  anon

#   undefined name or wrong IP version

dcc3.dcc-servers.net,-      RTT+1000 ms  anon

#   undefined name or wrong IP version

dcc4.dcc-servers.net,-      RTT+1000 ms  anon

#   undefined name or wrong IP version

dcc5.dcc-servers.net,-      RTT+1000 ms  anon

#   undefined name or wrong IP version

@,-                         RTT-1000 ms  32768 secret13007803165y958

# *127.0.0.1,-                                     

#      not answering

################

# 11/27/13 10:11:38 CST  greylist /var/dcc/map

# Re-resolve names after 12:06:31  

# 1 total, 0 working servers

# continue not asking greylist server 32 seconds after 1 failures

@,-                         Greylist 32768 secret13007803165y958

# *127.0.0.1,6276                                  

#      not answering

[root@dns log]# 

試著執行下列指令，看能不能解決：

[root@dns log]# cdcc rtt

# 11/27/13 10:15:58 CST  /var/dcc/map

# Re-resolve names after 12:15:52  Check RTTs after 10:30:57

# 1432.88 ms threshold, 1381.41 ms average    12 total, 11 working servers

IPv6 on   version=3

dcc1.dcc-servers.net,-      RTT+1000 ms  anon

#  74.92.232.243,-                                          Etherboy ID 1002

#     100% of  1 requests ok  358.04+1000 ms RTT       100 ms queue wait

#  80.91.36.101,-                                   dcc1.aftenposten.no ID 1215

#     100% of  3 requests ok 1643.84+1000 ms RTT       100 ms queue wait

#  209.169.14.30,-                                     x.dcc-servers ID 104

#     100% of  1 requests ok  332.88+1000 ms RTT       100 ms queue wait

dcc2.dcc-servers.net,-      RTT+1000 ms  anon

#  192.84.137.21,-                                           INFN-TO ID 1233

#     100% of  1 requests ok  436.34+1000 ms RTT       100 ms queue wait

#  195.20.8.232,-                                          EATSERVER ID 1166

#     100% of  1 requests ok  419.84+1000 ms RTT       100 ms queue wait

dcc3.dcc-servers.net,-      RTT+1000 ms  anon

#  38.124.232.176,-                                                  ID 1102

#     100% of  1 requests ok  349.92+1000 ms RTT       100 ms queue wait

#  192.135.10.194,-                                           debian ID 1169

#     100% of  2 requests ok 1460.40+1000 ms RTT      1100 ms queue wait

dcc4.dcc-servers.net,-      RTT+1000 ms  anon

# *69.12.221.230,-                                         sonic.net ID 1117

#     100% of  1 requests ok  281.41+1000 ms RTT       100 ms queue wait

#  137.208.8.63,-                                             wuwien ID 1290

#     100% of  1 requests ok  438.02+1000 ms RTT       100 ms queue wait

dcc5.dcc-servers.net,-      RTT+1000 ms  anon

#  136.199.199.160,-                                             URT ID 1060

#     100% of  1 requests ok  433.91+1000 ms RTT       100 ms queue wait

#  194.119.212.6,-                                              dcc1 ID 1182

#     100% of  2 requests ok  467.66+1000 ms RTT       100 ms queue wait

@,-                         RTT-1000 ms  32768 secret13007803165y958

#  127.0.0.1,-                                     

#      not answering

################

# 11/27/13 10:15:58 CST  greylist /var/dcc/map

# Re-resolve names after 12:15:57  

# 1 total, 0 working servers

# continue not asking greylist server 32 seconds after 1 failures

@,-                         Greylist 32768 secret13007803165y958

# *127.0.0.1,6276                                  

#      not answering

[root@dns log]# 

參考資料：

http://www.evilbox.ro/linux/no-working-dcc-servers/