[CentOS] problem on exceptional quit

[Hua Wang]

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'.
>