Has anybody ever tried putting an apache web server in front of IMail as an inbound proxy... I'd bet it would virtually eliminate loads due to attacks and would do a great job caching the graphics... I haven't had a chance to try it yet - but that doesn't mean somebody else hasn't already done so.
Anybody? _M |-----Original Message----- |From: [EMAIL PROTECTED] |[mailto:[EMAIL PROTECTED] On Behalf Of |Daniel Donnelly |Sent: Wednesday, September 03, 2003 3:46 PM |To: [EMAIL PROTECTED] |Subject: Re: [IMail Forum] Mail servers unite and crash just |before the holiday weekend!!! | | |I think you and Len are going down the wrong path. | |If iwebmsg.exe is showing high CPU, does a stop/start of the |service 'fix' things (at least for a little while)? If it |does, that is good, and the logs may tell us what is |happening. With the W2*.log files and the computer time when |CPU starting going high, the timestamped logs can show |connections and actions requested and taken and with a few |samples, you may even spot a trend/cause. | |By any chance is your Web Messaging running on port 80? If so, |it could be under attack. I think it was Nimbda, and Code Red, |a while back that gave these symptoms. Maybe other forms of |attacks could show them, too. If I remember, W2 logs showed |unusual requests for system folders/files... Someone else here |in the forum also reported that not using port 80 helped them |on some other Web MSG issues... | |Are you seeing increasing resource usage over time, by |iwebmsg? Does it all free up when you stop/start the service? | |Has the hard drive (storing the users folders) been recently |defragged? If not, it cannot hurt and may have significant |positive effects. | |Has anything new been added to the computer or has any change |been made in its configuration, recently? Checked for |virus/Trojans/worms on the system? Maybe something got in that |you have not yet detected? | |Have you checked Event logs? Any errors and warnings should be |rectified, ASAP. Especially, if they begin to appear around |the same time of this IMail problem. | |HTH, |Dan Donnelly | |----- Original Message ----- |From: "Shad Pulley" <[EMAIL PROTECTED]> |To: <[EMAIL PROTECTED]> |Sent: Tuesday, September 02, 2003 3:18 PM |Subject: RE: [IMail Forum] Mail servers unite and crash just |before the holiday weekend!!! | | |So, we dealt with it all weekend.. Just had the weekend crew |babysit.. It's still happening.. Called IPSwitch this |morning.. They used the typical 'it's your NIC' excuse.. |Never mind these servers have been running fine for 2 years.. |They suggested an upgrade to 8.. Took the chance and still no |dice.. After an hour or so, IWEBMSG is still jumping up to |99% CPU usage and bringing the boxes to their collective knees. | |So say that it is some message in a mailbox that is making the |service spike like that.. How do I go about tracking down |that message? | |Thanks, | |Shad D. Pulley |Sr. Systems Engineer |IKANO Communications |[EMAIL PROTECTED] |801-415-8023 | |-----Original Message----- |From: [EMAIL PROTECTED] |[mailto:[EMAIL PROTECTED] On Behalf Of Len Conrad |Sent: Friday, August 29, 2003 5:05 PM |To: [EMAIL PROTECTED] |Subject: Re: [IMail Forum] Mail servers unite and crash just |before the holiday weekend!!! | | |>7 is susceptible, 8 is immune |> |>Some kind of "poisonous" spam message, a bad msg txt format or |>attachment, getting through to probably many mailboxes on each |server, |>which when read from the queue or from the mailboxes cause the smtp |queue |>reader or iwebmsg to go get sick? |> |>when the machine locks up, or coming up to that point, is disk i/o |excessive? | |key question: is it something msg coming in through SMTP to the queue |+ |mailboxes, or is something hitting the HTTP port? | |Is the iwebmsg croaking because of something on HTTP or |because of something being read from the mailboxes? | |Len | | | |_____________________________________________________________________ |http://MenAndMice.com/DNS-training: London; San Jose; Wash DC |IMGate.MEIway.com: anti-spam gateway, effective on 1000's of |sites, free | | |To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html |List Archive: |http://www.mail-archive.com/imail_forum%|40list.ipswitch.com/ | |Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ | | |To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html |List Archive: |http://www.mail-archive.com/imail_forum%|40list.ipswitch.com/ | |Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ | | |To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html |List Archive: |http://www.mail-archive.com/imail_forum%|40list.ipswitch.com/ | |Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ | | To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
