We have to reboot the RAq3's at least twice a week luckily there here in our office and not in a colo. It always requires a hard reboot and nothing in the logs show why it hangs. All updates are current all services look good except for the IMAP which has remained broke for over a year. We installed neomail and it works but is extremely slow.
Alan DeRossett Digital Starlight Communications Inc. earthlink wrote: > > Hi, let me thank you first of all. Now, I will be more clear about the > problem > > When I say the server hangs, I mean this: > > We physically in any way shape or form cannot connect to the websites via > domain name, or IP > I *cannot* log into the console when it hangs. At all. Domain or ip of the > host > > When it is restarted, all is ok again. Then I can log into the console > > I am wondering now that I can log in (Until the next damn 'freeze') > what commands I can type to try to grasp what would cause this out of > nowhere after 1.5 years of no problems > > I hope this helps explain my situation more. What solutions would there be? > Is this just a network problem? > After reboots, *everything* seems to be working fine, I just don't know why > it would freeze at all > > It has frozen 2 times, and a reboot fixes it, but I do NOT feel secure in it > staying unfrozen, if you will > > Thanks > > Joel > ----- Original Message ----- > From: Peter Gloor <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, April 01, 2002 10:45 AM > Subject: Re: [cobalt-developers] Raq 3 Hangs! Websites down > > > Joel, > > > > Beginning about six weeks ago we had (and still have) something similar on > a > > Microsoft Windows NT Web/Proxy server. The same symptoms. The system is > > still running, no entries in any of the logs, but any incoming or outgoing > > traffic is blocked until we reboot the server. > > > > What we found out so far looks like a (new?) kind of attack. It looks > > somewhat like the well known Syn Flood attack. As I'm not good in these > > things I have no idea what to do against it. > > > > We are currently evaluating the Qube 3 as a replacement for the NT server, > > but so far I did not find the time to put it in place. > > > > Using netstat, immediately before the NIC hangs, I can see a lot of SYN > > RECEIVED with connections to port 80 on any IP address we have. The source > > has a bogus (spoofed) IP address. > > > > Now we have written a job that runs netstat any 30 second and writes any > > source adress for connections having SYN RECEIVED for more than 30 seconds > > into a file. We use this file daily to block this addresses from entering > > our network in the router. > > > > Windows NT has an entry in the registry to protect from Syn Flood attacks. > > Enabling this protection helped a little but did not solve the problem. > > > > Hope you'll get your problem solved, soon! > > > > Kind regards, > > > > Peter > > > > ----- Original Message ----- > > From: "earthlink" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Sunday, March 31, 2002 9:51 PM > > Subject: [cobalt-developers] Raq 3 Hangs! Websites down > > > > > > > Hello, this is the 2nd time this week our Raq 3 has hung and now > > > I cannot telnet into it and all websites are down > > > > > > One person will have to go out monday and restart the darn thing > > > > > > When it reboots and is back up and running (as it was for 2 days after > the > > > last hang and before it > > > died on us) what can I do to prevent this from happening again? > > > > > > It was fine for 1.5 years > > > > > > Is this just a piece of garbage that is no longer functional? We do not > > host > > > that many websites > > > > > > What can I do after a reboot to prevent this? This is PATHETIC > > > > > > Thanks > > > > > > Joel > > > > > > _______________________________________________ > > > cobalt-developers mailing list > > > [EMAIL PROTECTED] > > > http://list.cobalt.com/mailman/listinfo/cobalt-developers > > > > > > > > > _______________________________________________ > cobalt-developers mailing list > [EMAIL PROTECTED] > http://list.cobalt.com/mailman/listinfo/cobalt-developers _______________________________________________ cobalt-developers mailing list [EMAIL PROTECTED] http://list.cobalt.com/mailman/listinfo/cobalt-developers
