 | Strange dns problems on win2k |  |
sherpya
Joined: 22 Mar 2006 |
Posts: 0 |
Location: Italy |
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Posted: Mon May 04, 2009 12:37 am |
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I've noticed a server where freshclam was unable to resolve database.clamav.net address.
So I've fixed a little glitch that results in "unknown error" instead of "host not found" or "no ip address"
this off course does not solve the problem, but investigating, I've discovered some weird things not related to clamav
nslookup database.clamav.net
Server: dns.interbusiness.it
Address: 151.99.125.2
Non-authoritative answer:
Name: db.it.clamav.net
Addresses: 193.206.139.37, 213.92.8.5
Aliases: database.clamav.net, db.local.clamav.net
ping database.clamav.net
Host not found: database.clamav.net.
any clue? this may be one of sources of freshclam problems on some pc
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sherpya
Joined: 22 Mar 2006 |
Posts: 0 |
Location: Italy |
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Posted: Mon May 04, 2009 12:38 am |
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the "no ip address" error is described as:
Valid name, no data record of requested type.
The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for. The usual example for this is a host name-to-address translation attempt (using gethostbyname or WSAAsyncGetHostByName) which uses the DNS (Domain Name Server). An MX record is returned but no A record—indicating the host itself exists, but is not directly reachable.
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sherpya
Joined: 22 Mar 2006 |
Posts: 0 |
Location: Italy |
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Posted: Mon May 04, 2009 3:22 am |
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I've made a little tool that checks if your dns works correctly, first try with default "database.clamav.net" then try something else like google or so
https://oss.netfarm.it/clamav/files/dnschecker.exe https://oss.netfarm.it/clamav/files/dnschecker.exe
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