Then I encourage you to open a support incident with them on this. John Tolmachoff Engineer/Consultant/Owner eServices For You
> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:WhatsUp_Forum- > [EMAIL PROTECTED] On Behalf Of Goran Jovanovic > Sent: Monday, January 12, 2004 6:23 AM > To: [EMAIL PROTECTED] > Subject: RE: [WhatsUp Forum] DNS services continuously going down and up > > Yes this is the first time I have seen a Sonicwall device not do it > correctly. It is one of the new TZ 170 devices. > > > Goran Jovanovic > The LAN Shoppe > 2345 Yonge Street, Suite 302 > Toronto, Ontario M4P 2E5 > Phone: (416) 440-1167 x-2113 > Cell: (416) 931-0688 > E-Mail: [EMAIL PROTECTED] > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of John > Tolmachoff (Lists) > Sent: Friday, January 09, 2004 3:53 PM > To: [EMAIL PROTECTED] > Subject: RE: [WhatsUp Forum] DNS services continuously going down and up > > As a SonicWALL Certified Security Administrator, I always recommend to > hard > code the WAN interface to 10/half and the LAN interface to x/y with x y > being the highest available setting on the device connected to. > > John Tolmachoff > Engineer/Consultant/Owner > eServices For You > > > > -----Original Message----- > > From: [EMAIL PROTECTED] [mailto:WhatsUp_Forum- > > [EMAIL PROTECTED] On Behalf Of Goran Jovanovic > > Sent: Friday, January 09, 2004 12:14 PM > > To: [EMAIL PROTECTED] > > Subject: RE: [WhatsUp Forum] DNS services continuously going down and > up > > > > It is actually a new Sonicwall and I do not understand how it could > have > > auto-negotiated to 100/full with a hub??? > > > > -------------------------------------------------------------- > > Goran Jovanovic > > The LAN Shoppe > > 2345 Yonge St. > > Suite 302 > > Toronto, Ontario, M4P 2E5 > > Bus: 416-440-1167 x-2113 > > Cell: 416-931-0688 > > E-mail: [EMAIL PROTECTED] > > -------------------------------------------------------------- > > > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of John > > Tolmachoff (Lists) > > Sent: Friday, January 09, 2004 2:06 PM > > To: [EMAIL PROTECTED] > > Subject: RE: [WhatsUp Forum] DNS services continuously going down and > up > > > > Sounds like time for a new firewall. Not only bad, is technically not > > possible. Something in the firewall must be broken. > > > > John Tolmachoff > > Engineer/Consultant/Owner > > eServices For You > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] [mailto:WhatsUp_Forum- > > > [EMAIL PROTECTED] On Behalf Of Goran Jovanovic > > > Sent: Friday, January 09, 2004 8:14 AM > > > To: [EMAIL PROTECTED] > > > Subject: RE: [WhatsUp Forum] DNS services continuously going down > and > > up > > > > > > Hi all, > > > > > > Well I thought that I would update you on this problem. > > > > > > The problem was that the firewall had negotiated a 100/Full > connection > > > to the hub. This as you all know is bad. It took a bit of digging > > since > > > I was focusing on the server and not the firewall. I reset the lint > to > > > 100/half and no more packet loss. I was seeing a constant 10 to 50% > > > packet loss on the link. > > > > > > > > > > > > Goran Jovanovic > > > The LAN Shoppe > > > 2345 Yonge Street, Suite 302 > > > Toronto, Ontario M4P 2E5 > > > Phone: (416) 440-1167 x-2113 > > > Cell: (416) 931-0688 > > > E-Mail: [EMAIL PROTECTED] > > > > > > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] On Behalf Of TC > Roffey > > > Sent: Friday, January 02, 2004 5:08 PM > > > To: [EMAIL PROTECTED] > > > Subject: RE: [WhatsUp Forum] DNS services continuously going down > and > > up > > > > > > Or....... > > > > > > You're going over a vpn tunnel, right? I've got wug going over a > > cisco > > > vpn as well. And cisco says - In order for the tunnel to stay "up", > a > > > certain amount of interesting traffic at sufficient intervals needs > to > > > traverse the tunnel otherwise the vpn routers "times out" and takes > > down > > > the tunnel. So, the first dns query from whatever, user or wug, may > > not > > > be getting to the dns server. Result, dns service down. Wug tries > > > again and the service is there because the first query brought the > > > tunnel back up. > > > > > > TC > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] On Behalf Of Bond, > > Duncan > > > Sent: Friday, January 02, 2004 1:49 PM > > > To: '[EMAIL PROTECTED]' > > > Subject: RE: [WhatsUp Forum] DNS services continuously going down > and > > up > > > > > > > > > You should also note that if WUG is having the problem, so (most > > > probably) are the users of the DNS server. This can manifest in slow > > or > > > broken sessions; if the users have a backup server defined, > > transactions > > > will work, but will be slow because it takes time for the DNS > failure > > to > > > retry, then switch. We had a similar problem caused by improper > duplex > > > negotiation between DNS server and switch; WUG accurately reported > > > intermittency on the server. > > > > > > -----Original Message----- > > > From: Daniel Donnelly [mailto:[EMAIL PROTECTED] > > > Sent: Friday, January 02, 2004 4:41 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: [WhatsUp Forum] DNS services continuously going down > and > > up > > > > > > > > > Goran, > > > > > > Have you tried increasing the Timeout on that device? I'd double it, > > for > > > now... > > > > > > I suspect some unknown load (Exchange??) on the server is causing a > > > random delay is answering the DNS query. Setting a longer timeout > may > > > cause the device to be seen as up more often . In other words, the > > > longer timeout may help, but may not make the problem go away, just > > > won't show up as often in WUG. > > > > > > If the longer timeout helps, then I'd look more carefully at that > > server > > > for resource issues... > > > > > > Dan Donnelly > > > > > > ----- Original Message ----- > > > From: "Goran Jovanovic" <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]> > > > Sent: Friday, January 02, 2004 9:01 AM > > > Subject: RE: [WhatsUp Forum] DNS services continuously going down > and > > up > > > > > > > > > It is a Windows 2000 server, SP 4 running Exchange 2000 SP3 for > about > > 20 > > > users. Not really high load at all. > > > > > > > > > Goran Jovanovic > > > The LAN Shoppe > > > 2345 Yonge Street, Suite 302 > > > Toronto, Ontario M4P 2E5 > > > Phone: (416) 440-1167 x-2113 > > > Cell: (416) 931-0688 > > > E-Mail: [EMAIL PROTECTED] > > > _____ > > > > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] On Behalf Of John > > > Tolmachoff > > > (Lists) > > > Sent: Friday, January 02, 2004 2:05 AM > > > To: [EMAIL PROTECTED] > > > Subject: RE: [WhatsUp Forum] DNS services continuously going down > and > > up > > > > > > Is the DNS server a Windows server 200x server under very high > query > > > load with a large cache? > > > > > > > > > > > > John Tolmachoff > > > Engineer/Consultant/Owner > > > eServices For You > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] On Behalf Of Goran > > > Jovanovic > > > Sent: Thursday, January 01, 2004 8:52 PM > > > To: [EMAIL PROTECTED] > > > Subject: [WhatsUp Forum] DNS services continuously going down and up > > > > > > Hi All and Happy New Year to everyone, > > > > > > I am monitoring a number of my client's servers via a VPN tunnel and > > > there is this one server that is setup just like all the others but > it > > > keeps reporting that the DNS services goes down. Then on the next > poll > > > (or so) the services comes back to life. Life is fine for 30 to 90 > > > minutes when the DNS goes down again. I have the alarm trigger set > to > > 4. > > > I have checked the server and there are no entries in the event log > > for > > > problems. > > > > > > Any thoughts on what could be causing the DNS to fail and then > > reappear? > > > > > > Thanx > > > > > > Goran Jovanovic > > > The LAN Shoppe > > > 2345 Yonge Street, Suite 302 > > > Toronto, Ontario M4P 2E5 > > > Phone: (416) 440-1167 x-2113 > > > Cell: (416) 931-0688 > > > E-Mail: [EMAIL PROTECTED] > > > > > > > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > > > to be removed from this list. > > > > > > An Archive of this list is available at: > > > http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ > > > > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > > > to be removed from this list. > > > > > > An Archive of this list is available at: > > > http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ > > > > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > > > to be removed from this list. > > > > > > An Archive of this list is available at: > > > http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ > > > > > > > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > > > to be removed from this list. > > > > > > An Archive of this list is available at: > > > http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ > > > > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > > to be removed from this list. > > > > An Archive of this list is available at: > > http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ > > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > > to be removed from this list. > > > > An Archive of this list is available at: > > http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > to be removed from this list. > > An Archive of this list is available at: > http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > to be removed from this list. > > An Archive of this list is available at: > http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. 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