[Cialug] REALLY weird problem

[Dave Hala]

Bad network card?

On Thu, Feb 19, 2015 at 1:20 PM, L. V. Lammert <lvl at omnitec.net> wrote:
> Looks like the first post was damaged, ..
>
>         Thanks!
>
>         Lee
>
> ==============================================
>
> OK, folks, .. need some spare brain cells here - I'm stumped!
>
> We have a server at a remote site [from here, about 30 miles], and it has
> been acting up for the past week after a power failure. The main symptoms
> are - a connection can be established, but when there is any amount of
> traffic over the connection it hangs (ssh, smtp, ..).
>
> It *seems* be more stable on a local connection over external [remote
> tunnel], but the both will hang at various times.
>
> Network tests seem OK (i.e. substituting another machine on that cable
> and testing outbound with speedtest is fine), .. and an internal test TO
> the system is fine (copying a 2.5GB file TO the machine from a local
> host).
>
> Nothing weird in messages, .. dmesg, .. ethtool, .. top, ..
>
> I have suspected a network issue, .. all cables have been replaced, and
> different switch ports used.
>
> Any suggestions on how to isolate the issue would be greatly appreciated!
>
>         Lee
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