Re: Hour long timeout to ssh/telnet/ftp to down host?

From: Luigi Genoni (kernel@Expansa.sns.it)
Date: Wed Jun 13 2001 - 04:40:17 EST


On Tue, 12 Jun 2001, Ben Greear wrote:

> Rob Landley wrote:
> >
> > I have scripts that ssh into large numbers of boxes, which are sometimes
> > down. The timeout for figuring out the box is down is over an hour. This is
> > just insane.
> >
> > Telnet and ftp behave similarly, or at least tthey lasted the 5 minutes I was
> > willing to wait, anyway. Basically anything that calls connect(). If the
> > box doesn't respond in 15 seconds, I want to give up.
> >
> > Is this a problem with the kernel or with glibc? If it's the kernel, I'd
> > expect a /proc entry where I can set this, but I can't seem to find one. Is
> > there one? What would be involved in writing one?
> >
>
> You can tune things by setting the tcp-timeout probably..I don't
> know exactly where to set this..

/proc/sys/net/ipv4/tcp_fin_timeout

default is 60.

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This archive was generated by hypermail 2b29 : Fri Jun 15 2001 - 21:00:17 EST