-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Thursday 2008-01-17 at 22:24 +0100, agr.suzdal wrote:
i think that something on your computer is going down.
first: 128.9.0.107 = ns1.isi.edu
Yes.
and it's a root name server of DNS as you can see at http://en.wikipedia.org/wiki/Root_nameserver
I guessed so, but didn't know how to make sure.
; formerly NS1.ISI.EDU ; . 3600000 NS B.ROOT-SERVERS.NET. B.ROOT-SERVERS.NET. 3600000 A 128.9.0.107
second: icmp type 3 code 0 = Host Unreachable
Ah!
third: as you can see at logs, your ROUTER (SRC=192.168.1.1) is sending a packet to you (DST=192.168.1.12)
Right, so far I knew :-)
answering "with" Host Unreachable (PROTO=ICMP TYPE=3 CODE=0)
And that I did not know.
that a packet DNS from YOU (SRC) [SRC=192.168.1.12 DST=128.9.0.107 LEN=62 TOS=0x00 PREC=0x00 TTL=64 ID=61490 DF PROTO=UDP SPT=2529 DPT=53 LEN=42 ] can't reach destination.
Ah... ok. Then the funny thing is why is the firewall blocking that "answer" :-? Perhaps I should open the firewall to port 53, which currently is not, as I don't serve dns queries :-? No... the packet itself is not going to port 53, it is icmp protocol. Then why is it blocked?
my recomendation, verify your set of DNS at /etc/resolv.conf, and if it's right, then something is bad onto your computer.
I think there must be something fishy in the hints file, which is the one that suse supplies: nimrodel:/var/lib/named # rpm -q -f /var/lib/named/root.hint bind-9.4.1.P1-12 But the version is too old: ; last update: Jan 29, 2004 ; related version of root zone: 2004012900 Ok, I got the new version from ftp://ftp.internic.net/domain/named.root, and there is no server at "128.9.0.107" (not in the suse version, not in the new version): ; formerly NS1.ISI.EDU ; . 3600000 NS B.ROOT-SERVERS.NET. B.ROOT-SERVERS.NET. 3600000 A 192.228.79.201 But that's the same data the suse version contains. The only difference is: nimrodel:/var/lib/named # diff root.hint /home/cer/named.root 12,13c12,13 < ; last update: Jan 29, 2004 < ; related version of root zone: 2004012900 - ---
; last update: Nov 01, 2007 ; related version of root zone: 2007110100 74c74 < L.ROOT-SERVERS.NET. 3600000 A 198.32.64.12
L.ROOT-SERVERS.NET. 3600000 A 199.7.83.42
If there is no longer a root server at NS1.ISI.EDU, why is my machine querying it? At least, replacing the old hints file solves a problem I saw in the logs: Jan 9 04:21:39 nimrodel named[4688]: checkhints: L.ROOT-SERVERS.NET/A (199.7.83.42) missing from hints Jan 9 04:21:39 nimrodel named[4688]: checkhints: L.ROOT-SERVERS.NET/A (198.32.64.12) extra record in hints But yet, I nothing related to that 128.9.0.107. I'll grep for it... bingo! I had an old 'root.cache' with that entry, not belonging to any rpm. You are right, my whole config is fishy; I think I have it right now. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) iD8DBQFHj+WLtTMYHG2NR9URAorSAJ9D7PEsZzAEDLvvaWADFkqQoXlNswCfaTCd tvvShxtCOKR5B0Cz9xaZ8Tg= =ALp5 -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-security+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security+help@opensuse.org