mb@rex.cs.tulane.edu (Mark Benard) (08/26/90)
I have a problem with one particular host that is making SMTP connections with us and then just hanging on, eating up lots of CPU time and eventually making multiple connections which block our local sendmail from running the queue. Is there anything I can set in sendmail.cf or elsewhere to cause connections from this host to be refused or to limit the time length of an incoming SMTP session? We are running U Toronto's sendmail on a Pyramid 9815. Mark
jgk@osc.COM (Joe Keane) (08/29/90)
In my opinion this problem is better solved by calling up the site and telling them to get their act together. Chances are, if you're having the problem, so are other people.
jeffe@sandino.austin.ibm.com (Peter Jeffe 512.823.4091) (09/01/90)
In article <4005@rex.cs.tulane.edu> mb@rex.cs.tulane.edu (Mark Benard) writes: >I have a problem with one particular host that is making SMTP connections >with us and then just hanging on, eating up lots of CPU time and eventually >making multiple connections which block our local sendmail from running the >queue. Is there anything I can set in sendmail.cf or elsewhere to cause >connections from this host to be refused or to limit the time length of an >incoming SMTP session? I can't think of any way to restrict connections from that host (without hacking the code), but you can certainly use the r option to set the read timeout. E.g., doing "Or5m" will timeout the server's read after 5 minutes and cause it to die. Look for the timeout syslogs to tell you when it happens (and with whom). ------------------------------------------------------------------------------- Peter Jeffe ...uunet!cs.utexas.edu!ibmaus!auschs!sandino.austin.ibm.com!jeffe first they want a disclaimer, then they make you pee in a jar, then they come for you in the night