[CentOS] problem on exceptional quit

Hua Wang
Thu, 08 Oct 2015 13:32:41 -0000

Dear Johnny,

Yes, I have tried much larger numbers than 60 and 3 for the above two parameters
respectively. And I am sure it is using ?protocol 2? because it?s uncommented in
sshd_config.

Is there a way to catch what?s happing before quit? I couldn?t see anything
except for the line ?write failed, broken pipe?.

Thanks.

Hua

At 2015-10-08 19:37:24, "Johnny Hughes" <johnny at centos.org>
wrote:
>On 10/07/2015 10:45 PM, Hua Wang wrote:
>>
>>>
>>>> I tried to ping the server, and it can accept all data. Is
there a good way
>>>> to check it?
>>>
>>> ssh -v, ssh -vv and ssh -vvv might give you some interesting
information.
>>>
>> Yes, I tried ssh -vvv. It gave a lot of information while login, but it
quit without any further information except for ?write failed, broken pipe?.
>>
>>>> The problem came out while reinstalling centos 7.7.
>>>
>>> Since you're apparently using some kind of an unofficial or
non-standard version of Centos, you might want to try using a current (regular)
one instead.
>>>
>>
>> Sorry I made a mistake for the version. I am using v7 instead of v7.7.
>>
>
>Try using ClientAliveMaxCount and ServerAliveCountMax (you can set them
>to 5 or 8 instead of the default of 3 and also make the timeouts higher
>than 60.
>
>make sure you are using 'protocol 2'.
>