關於那個「disabling EDNS」的log...
今天剛搞的bind 9.5.0p2。
發現/var/log/messages里很多這種內容:
Aug 26 19:01:30 cernetdns2 named: too many timeouts resolving 'muduobt.meibu.com/A' (in 'meibu.com'?): disabling EDNS
Aug 26 19:01:31 cernetdns2 named: too many timeouts resolving 'update.bitdefender.com/A' (in 'com'?): disabling EDNS
Aug 26 19:02:04 cernetdns2 named: too many timeouts resolving 'd.domain/A' (in '.'?): disabling EDNS
Aug 26 19:02:04 cernetdns2 named: too many timeouts resolving 'yiwuweb.3322.org/A' (in '3322.org'?): disabling EDNS
Aug 26 19:02:34 cernetdns2 named: too many timeouts resolving 'hd.xiaonei.cnc.chinacache.net/A' (in 'cnc.chinacache.NET'?): disabling EDNS
Aug 26 19:02:34 cernetdns2 named: too many timeouts resolving 'muduobt.meibu.com/A' (in 'meibu.com'?): disabling EDNS
這個disabling EDNS是啥問題呢?
我嘗試過用在客戶端用nslookup解析比如hd.xiaonei.cnc.chinacache.net這個log中報錯的地址:
> hd.xiaonei.cnc.chinacache.net
Server:
Address: xx.xx.xx.xx
Non-authoritative answer:
Name: hd.xiaonei.cnc.chinacache.net
Addresses: 221.192.149.93, 221.192.149.94
>
是可以解析的啊。
網上搜索了一番,基本沒有中文文章...那個edns我看了下好像是智能dns?另外發現出現這個disabling edns的地址,應該都是利用到了cdn技術的地址,應該也就是所謂的智能dns咯?
那....這個錯誤到底對我有沒有影響呢?如果沒,可否關閉這個Log?
謝謝啦~
《解決方案》
厄...找到這個:
http://groups.google.com/group/comp.protocols.dns.bind/browse_thread/thread/732e104148f762e3
據說是一個bug....?
http://www.isc.org/index.pl?/sw/bind/view/?release=9.5.0a6
2409. Only log that we disabled EDNS processing if we were subsequently successful.
貌似是即將修正....:em21:
《解決方案》
關掉log中的顯示就是
category edns-disabled { null; };
《解決方案》
原帖由 chenzq1604 於 2008-8-27 14:10 發表 http://bbs.chinaunix.net/images/common/back.gif
關掉log中的顯示就是
category edns-disabled { null; };
恩關掉了,感謝~
《解決方案》
那個文件在哪的,我怎麼沒找到啊,在named.conf裡面么,還是?