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can't access svn:// schemes, http:// OK ... is it svn 1.2rc2 or my firewall?

From: OpenMacNews <OpenMacNews_at_speakeasy.net>
Date: 2005-05-06 18:33:10 CEST

hi all,

i'm seemingly unable to access external svn:// repositories.

e.g., from my internal LAN,

        % svn co svn://svr2.postgresql.org/trunk/pgadmin3 pgadmin3

simply eventually times out with:

        svn: Can't connect to host 'svr2.postgresql.org': Operation timed out

though the machine is alive:

% ping -c 1 svr2.postgresql.org
    PING svr2.postgresql.org (65.19.161.25): 56 data bytes
    64 bytes from 65.19.161.25: icmp_seq=0 ttl=59 time=17.953 ms

looking a little deeper, up until the timeout:

% tcpdump -vvi en0

        09:12:59.086957 IP (tos 0x0, ttl 64, id 6664, offset 0, flags [none], length:
65) dev.internal.testdomain.net.49196 > ns.internal.testdomain.net.domain: [udp
sum ok] 25930+ A? svr2.postgresql.org. (37)
        09:12:59.207704 IP (tos 0x0, ttl 64, id 17281, offset 0, flags [none],
length: 183) ns.internal.testdomain.net.domain >
dev.internal.testdomain.net.49196: 25930 q: A? svr2.postgresql.org. 1/5/0
svr2.postgresql.org. A svr2.postgresql.org ns: [|domain]
        09:12:59.210879 IP (tos 0x0, ttl 64, id 6666, offset 0, flags [DF], length:
60) dev.internal.testdomain.net.49193 > svr2.postgresql.org.svn: S [bad tcp
cksum 997f (->fa4e)!] 3011006207:3011006207(0) win 65535 <mss 1460,nop,wscale
0,nop,nop,timestamp 978562057 0>
        09:13:01.827258 IP (tos 0x0, ttl 64, id 6668, offset 0, flags [DF], length:
60) dev.internal.testdomain.net.49193 > svr2.postgresql.org.svn: S [bad tcp
cksum 997f (->fa49)!] 3011006207:3011006207(0) win 65535 <mss 1460,nop,wscale
0,nop,nop,timestamp 978562062 0>
        09:13:04.827719 IP (tos 0x0, ttl 64, id 6669, offset 0, flags [DF], length:
60) dev.internal.testdomain.net.49193 > svr2.postgresql.org.svn: S [bad tcp
cksum 997f (->fa43)!] 3011006207:3011006207(0) win 65535 <mss 1460,nop,wscale
0,nop,nop,timestamp 978562068 0>
        09:13:07.828192 IP (tos 0x0, ttl 64, id 6674, offset 0, flags [DF], length:
44) dev.internal.testdomain.net.49193 > svr2.postgresql.org.svn: S [tcp sum ok]
3011006207:3011006207(0) win 65535 <mss 1460>
        09:13:10.828695 IP (tos 0x0, ttl 64, id 6681, offset 0, flags [DF], length:
44) dev.internal.testdomain.net.49193 > svr2.postgresql.org.svn: S [tcp sum ok]
3011006207:3011006207(0) win 65535 <mss 1460>
        09:13:13.829237 IP (tos 0x0, ttl 64, id 6682, offset 0, flags [DF], length:
44) dev.internal.testdomain.net.49193 > svr2.postgresql.org.svn: S [tcp sum ok]
3011006207:3011006207(0) win 65535 <mss 1460>
        09:13:19.830175 IP (tos 0x0, ttl 64, id 6683, offset 0, flags [DF], length:
44) dev.internal.testdomain.net.49193 > svr2.postgresql.org.svn: S [tcp sum ok]
3011006207:3011006207(0) win 65535 <mss 1460>

i note (but have no idea how to interpret) the "bad tcp cksum" entries ...

i AM on a NAT'd LAN behind an iptables firewall, but i've a rule in place
that's (should be) letting any/all internally originated traffic out, then in.

i CAN reliably access http:// webdav repos, just not the svn:// schemes.

fwiw, my svn build is:

% uname -a
    Darwin dev 8.0.0 Darwin Kernel Version 8.0.0: Sat Mar 26 14:15:22 PST 2005;
root:xnu-792.obj~1/RELEASE_PPC Power Macintosh powerpc

% svn --version
        svn, version 1.2.0 (Release Candidate 2)
           compiled May 5 2005, 22:23:39
        
        Copyright (C) 2000-2005 CollabNet.
        Subversion is open source software, see http://subversion.tigris.org/
        This product includes software developed by CollabNet (http://www.Collab.Net/).
        
        The following repository access (RA) modules are available:
        
        * ra_dav : Module for accessing a repository via WebDAV (DeltaV) protocol.
          - handles 'http' scheme
          - handles 'https' scheme
        * ra_svn : Module for accessing a repository using the svn network protocol.
          - handles 'svn' scheme
        * ra_local : Module for accessing a repository on local disk.
          - handles 'file' scheme

any suggestions as to what/where the problem might be? or where to begin to
look? i've honestly no idea if it's my firewall or the subversion build itself.

any insights are much appreciated!

cheers,

richard

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Received on Fri May 6 18:40:22 2005

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