ssh session freezes in dapper

[Matthew Flaschen]

hemant wrote:
> On 2/3/07, hemant <gethemant at gmail.com> wrote:
>> Hi,
>>
>> When I connect to remote machines from my local dapper workstation,
>> after sometime my SSH session hangs without any apparent reason.
>>
>> I have literally searched internet for hours for a solution and people
>> seem to have following reasons for this:
>>
>> - Poor DNS
>> - Packet fragmentation and firewall problem, and bulk text freezes the session
>> - Inactivity timeout.
>>
>> Although I won't call my DNS to be solid, but when I connect to the
>> same machines using putty from Windows(which uses zonealarm firewall),
>> ssh sessions work fine and doesn't hang as they hang in Linux.
>>
>> Many people had ssh session hangs, when the command entered in remote
>> session transferred large amount of text. I can assure, you guys that,
>> its not the case here. Even doing, small chunks transfer session
>> freezes.
>>
>> And of course, its not inactivity timeout, it happens, when i would be
>> in middle of entering some command.
>>
>> Also, interesting fact is, many of my collegues within same intranet
>> complained about their putty throwing "garbled network data", but
>> since I had zonealarm on, I didn't face any problems in
>> Windows.(zonealarm seems to be ordering bytes or something like that
>> in Windows and for me, I never get session hangs in Windows when using
>> putty)
>>
>> I am literally frustrated here and would love any solution/points.(I
>> hate booting into Windows, for working on remote machines)
>>
>> Also I am running firestarter on my machine. I also tried setting up
>> MTU = 576 using ifconfig eth0 mtu 576, but doesn't seem to have any
>> impact.
>>
>>
>> eth0      Link encap:Ethernet  HWaddr -----------------
>>           inet addr:10.0.0.187  Bcast:10.10.2.255  Mask:255.255.255.0
>>           inet6 addr: fe80::215:f2ff:fe91:dc77/64 Scope:Link
>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>           RX packets:46986 errors:0 dropped:0 overruns:0 frame:0
>>           TX packets:19000 errors:0 dropped:0 overruns:0 carrier:0
>>           collisions:0 txqueuelen:1000
>>           RX bytes:21881243 (20.8 MiB)  TX bytes:2177529 (2.0 MiB)
>>           Interrupt:217 Base address:0x2000
>>
>> lo        Link encap:Local Loopback
>>           inet addr:127.0.0.1  Mask:255.0.0.0
>>           inet6 addr: ::1/128 Scope:Host
>>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>>           RX packets:5229 errors:0 dropped:0 overruns:0 frame:0
>>           TX packets:5229 errors:0 dropped:0 overruns:0 carrier:0
>>           collisions:0 txqueuelen:0
>>           RX bytes:2434670 (2.3 MiB)  TX bytes:2434670 (2.3 MiB)
>>
>> Linux xaos 2.6.15-27-386 #1 PREEMPT Fri Dec 8 17:51:56 UTC 2006 i686 GNU/Linux
> 
> Anyone?
> 
> 
Hmm, why don't you try using SSH after booting the live CD.  That should
tell you whether any of your configuration (e.g. firestarter, which I've
never heard of) messed things up.  Normally, I think the live CD
includes SSH.

Matthew Flaschen

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