Will I need to have my credit card handy? :-) Mark ________________________________ From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxxxxxxxxx] Sent: Thursday, August 14, 2003 1:50 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: DNS Restart After ISA Server Reboot http://www.ISAserver.org Hey guys, Call PSS for the latest rollup hotfix and all DNS problems will disappear. HTH, Tom Thomas W Shinder www.isaserver.org/shinder ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp -----Original Message----- From: William Robertson [mailto:robertson.william@xxxxxxxxxxxxxx] Sent: Thursday, August 14, 2003 1:21 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: DNS Restart After ISA Server Reboot http://www.ISAserver.org Hi Troy I have noticed the exact same problem/scenario but my solution is not as proactive as yours. What I've also found is that even though ISA Services have not been restarted, I will sometimes get a DNS failure. I thus scheduled a VB Script to restart DNS on my DC's once a day, but even that sometimes isn't good enough. Would you mind sharing your "polling script" with the rest of us mortals so that we may also implement a more effective solution? Thanks William R. -----Original Message----- From: Troy Robbins [mailto:trobbins@xxxxxxxxxxxxx] Sent: 14 August 2003 08:10 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: DNS Restart After ISA Server Reboot http://www.ISAserver.org Mark, We encountered a similar problem under the following conditions: - upon reboot of the ISA server - restart of the ISA services - external DNS failure from our ISP After spending time attempting to troubleshoot any issue that was going on with DNS or ISA, the workaround I came up with was to create a script that polls an external FQDN with more than one DNS server, the script then parses the results and counts the DNS servers returned, if the result is not what was expected the script restarts the local DNS service (logs an event) and rechecks the results again. If the script returned bad results the 2nd pass through a notification event is fired off as well (i.e. email, MS Messenger Service, log file and event log). The script keeps a tally of the total failures and will stop after the 3rd attempted restart of the DNS service - notifying us that human intervention is required. We use the script on all of our internal DNS servers (5) and its executed every 4 minutes. On average the DNS service is restarted a couple times every other day, very seldom have we had to intervene - only when perhaps our external DNS servers were having issues. While this obviously doesn't resolve the underlying problem, it's certainly placed a Band-Aid on the issue and allowed us to move on for the time being. If you like I can email the script to you off list. Troy Robbins, CISSP ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: mark.hopkins@xxxxxxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')