On 02/12/2018 09:12 PM, Earl Ramirez wrote:
> On Mon, 2018-02-12 at 20:13 -0500, H wrote:
>> On 02/12/2018 07:24 PM, Liam O'Toole wrote:
>>> On 2018-02-12, H <age...@meddatainc.com> wrote:
>>>> Running CentOS 7 on workstation and having a problem with ssh
>>>> disconnects. My ssh_config contains:
>>>> Host *
>>>> TCPKeepAlive yes
>>>> ServerAliveInterval 30
>>>> ServerAliveCountMax 300
>>>> and sshd_config on the server contains:
>>>> TCPKeepAlive yes
>>>> ClientAliveInterval 60
>>>> ClientAliveCountMax 300
>>>> Have I missed any setting needed to prevent these random
>>>> disconnects?
>>>> I don't think there is anything wrong with the network card, the
>>>> driver, or the cable, since if I am on a VPN connection via
>>>> another
>>>> server, the VPN and any ssh connection stay up indefinitely.
>>>> Thanks.
>>> Another poster has provided some possible reasons for the
>>> disconnections. Whatever the cause, autossh (from the epel repo) is
>>> a
>>> good workaround.
>> Not that this happens while I do large scp file transfers that may
>> take more than half an hour, simply restarting an ssh session is not
>> going to help since I will lose the file transfer.
> I don't know if this would help but I had a similar issue and it turned
> out that there was a custom script in /etc/profile.d/ that contain
> TMOUT 900.
> You can also check in /etc/profile, usually, the security logs has
> something about the disconnects, of you can use wireshark or a similar
> tool to capture and analyse the packets.
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I think that I forgot to mention that the problem is not the common "write 
failed: broken pipe" but "packet_write_wait: broken pipe".

I don't think the problem is router related since another computer, albeit 
running CentOS 6, does not have similar issues.

Does the information above suggest any other reason for my problem?

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