Win2003r2 Caching DNS Server fails/stops resolving after 4 cname answers for www.cisco.com

-

hi guys,

we got realy strange dns cache resolving problem.  if cache empty works!

> www.cisco.com.
server:  dc2.xxx.local
address:  10.255.248.10

------------
got answer:
    header:
        opcode = query, id = 24, rcode = noerror
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 6,  authority records = 0,  additional = 0

    questions:
        www.cisco.com, type = a, class = in
    answers:
    ->  www.cisco.com
        canonical name = www.cisco.com.akadns.net
        ttl = 0 (0 secs)
    ->  www.cisco.com.akadns.net
        canonical name = geoprod.cisco.com.akadns.net
        ttl = 0 (0 secs)
    ->  geoprod.cisco.com.akadns.net
        canonical name = www.cisco.com.edgekey.net
        ttl = 0 (0 secs)
    ->  www.cisco.com.edgekey.net
        canonical name = www.cisco.com.edgekey.net.globalredir.akadns.net
        ttl = 0 (0 secs)
    ->  www.cisco.com.edgekey.net.globalredir.akadns.net
        canonical name = e144.cd.akamaiedge.net
        ttl = 0 (0 secs)
    ->  e144.cd.akamaiedge.net
        internet address = 84.53.164.170
        ttl = 19 (19 secs)

------------
non-authoritative answer:
name:    e144.cd.akamaiedge.net
address:  84.53.164.170
aliases:  www.cisco.com
          www.cisco.com.akadns.net
          geoprod.cisco.com.akadns.net
          www.cisco.com.edgekey.net
          www.cisco.com.edgekey.net.globalredir.akadns.net

 

but if query again, fails.

> www.cisco.com.
server:  dc2.xxx.local
address:  10.255.248.10

------------
got answer:
    header:
        opcode = query, id = 22, rcode = noerror
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 4,  authority records = 0,  additional = 0

    questions:
        www.cisco.com, type = a, class = in
    answers:
    ->  www.cisco.com
        canonical name = www.cisco.com.akadns.net
        ttl = 0 (0 secs)
    ->  www.cisco.com.akadns.net
        canonical name = geoprod.cisco.com.akadns.net
        ttl = 0 (0 secs)
    ->  geoprod.cisco.com.akadns.net
        canonical name = www.cisco.com.edgekey.net
        ttl = 0 (0 secs)
    ->  www.cisco.com.edgekey.net
        canonical name = www.cisco.com.edgekey.net.globalredir.akadns.net
        ttl = 0 (0 secs)

------------
non-authoritative answer:
name:    www.cisco.com

 

i spend lot of time troubleshooting cant put finger onto it. have other windows 2003 machine dc1 (through different internet pipe) work time. both running: dns.exe version 5.2.3790.4460

we not sure if network/firewall issue somewhere in our network our windows 2003 isn't resolving query correctly. installed wireshark because suspected @ first network issue, seems afther last query responce dns server stops:

1323    19.574477    64.211.42.196    10.255.248.10    dns    standard query response cname www.cisco.com.edgekey.net.globalredir.akadns.net

the dns server configured use resolving useing root hints (same dc1).

i see lot of eventlog entries eventid: 5504  , contents:

the dns server encountered invalid domain name in packet 150.70.147.168. packet rejected. event data contains dns packet.

anybody can shed light on this? why doesn't work when there entries in cache?

hi customer,
 
i understand eventide 5504 error dns received. please try solve issue by the below steps.

 

 

1.      check if incorrect forwarder address in dc2 dns
2.      use correct isp dns forwarder instead of root hint,  only isp dns ips set forwarders
3.      check article, description of dns server secure cache against pollution setting

http://support.microsoft.com/?kbid=316786
 

4.      patch windows server 2003 not support dname

http://support.microsoft.com/kb/920162
 
http://www.microsoft.com/technet/support/ee/transform.aspx?prodname=windows%20operating%20system&prodver=5.2&evtid=5504&evtsrc=dns&lcid=1033

 
http://www.eventid.net/display.asp?eventid=5504&eventno=642&source=dns&phase=1
regards, rick tan


Windows Server  >  Network Infrastructure Servers



Comments

Post a Comment

Popular posts from this blog

some help on Event 540

-
does event 540 me distinguish between user , administrator access?    this event generated ypon successfull logon, logon exactly? successful logon on system?   is there other way log administrator access system using event viewer?   thank valuable response   georges hi,   as far know, cannot distinguish between user , administrator access event 540. more information, please refer to:   event id: 540 http://www.microsoft.com/technet/support/ee/transform.aspx?prodname=windows+operating+system&prodver=5.0&evtid=540&evtsrc=security&lcid=1033   events 528 , 540 http://blogs.msdn.com/b/ericfitz/archive/2004/12/09/279282.aspx   regards, bruce this posting provided "as is" no warranties, , confers no rights. please remember click "mark answer" on post helps you, , click "unmark answer" if marked post not answer question. can beneficial other community members reading thread.
Read more

WMI Repository 4GB limit - Win 2003 Ent Question

-
Image
hi there, i've question size limit on wmi repository (being 4gb). if isn't correct place post this, apologies , can let me know wheere post this? i've come across few servers running citrix have reached limit on wmi repository size , need install ibm director agent hw monitoring. during install getting 'out of disk space' errors entered in mofcomp.log: "(mon apr 02 04:10:36 2012.172843) : error occurred while processing item 4: (mon apr 02 04:10:36 2012.172843) : error number: 0x8004103b, facility: wmi description: out of disk space" when error number http://msdn.microsoft.com/en-us/library/windows/desktop/aa394559%28v=vs.85%29.aspx i see this: wbem_e_out_of_disk_space 2147749947 (0x8004103b) disk out of space or 4 gb limit on wmi repository (cim repository) size reached. windows xp , windows 2000/nt:   disk out of space. i'm wondering if there reason why limit set 4gb or can increase needs be? can't seem find reas
Read more

Event ID 1302 (error 1307) DFS replication service encountered an error while writing to the debug log file

-
Image
hello. we @ step 0 of migration frs dfsr sysvol replication on windows 2008r2 dc. every time run powershell dfsrmig / getmigrationstate says: "unable create dfsr migration log file. error 1307. all domain controllers have migrated global state 'start'. migration has reached consistent state on domain controllers. succeeded." it creates event id 1302 in "dfs replication" event log, explaining error 1307 means: "this security id may not assigned ownder of object ". i already checked space limits, quotas, permissions on c:\windows\debug according microsoft support article unable fix it. although, there new entries added dfsr00095.txt log file despite error. dfsrxxxx file has not been archived .gz format, and, beleive, contains dfsr diagnostics , events. here of latest entries: 20150908 08:47:27.867 11616 sysm  3354 migration::sysvolmigration::getsysvolreadyflag [mig] sysvol ready 20150908 08:47:27.867 11616 sysm   456 migrati
Read more