DNS suspected in connection pauses

Every 10 minutes or so, my browser on my iMac will stall when trying to load a simple web page (google.com, for instance). It'll load correctly 9 times out 10, then on the 10th, just stall for 1-3 minutes before it loads. I'm almost certain it's a DNS issue, but I've tried completely reinstalling the server software and reconfiguring it, but it still keeps happening.
I've got a small network of 2 10.5.6 iMacs and 10.5.6 G5 server running DNS and DHCP. DHCP hands out the Leopard server first and then the two OpenDNS servers. The default search domain is coldcasey.com.
Running a ping in a separate Terminal window shows no connection failures, so I don't think it's my IP (Comcast). I've done a dscacheutil -flushcache and that doesn't fix anything, so I'm wondering if I've set it up wrong?
Some screen shots of the DNS setup are here:
http://gallery.me.com/brewster3/100292
Below are the results of a forward and reverse dig of my server from my imac and a few to google, as well as the DHCP and DNS log.
Any assistance would be appreciated!
Thanks.
504 $dig coldcasey.com
; <<>> DiG 9.4.3-P1 <<>> coldcasey.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18919
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;coldcasey.com. IN A
;; AUTHORITY SECTION:
coldcasey.com. 10800 IN SOA server.coldcasey.com. admin.coldcasey.com. 2009041602 86400 3600 604800 345600
;; Query time: 1 msec
;; SERVER: 10.0.123.254#53(10.0.123.254)
;; WHEN: Wed May 20 20:01:44 2009
;; MSG SIZE rcvd: 80
~ 505 $dig 10.0.123.254
; <<>> DiG 9.4.3-P1 <<>> 10.0.123.254
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 54951
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;10.0.123.254. IN A
;; AUTHORITY SECTION:
. 10355 IN SOA A.ROOT-SERVERS.NET. NSTLD.VERISIGN-GRS.COM. 2009052001 1800 900 604800 86400
;; Query time: 1 msec
;; SERVER: 10.0.123.254#53(10.0.123.254)
;; WHEN: Wed May 20 20:02:53 2009
;; MSG SIZE rcvd: 105
~ 501 $dig www.google.com
; <<>> DiG 9.4.3-P1 <<>> www.google.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27910
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 7, ADDITIONAL: 0
;; QUESTION SECTION:
;www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 518838 IN CNAME www.l.google.com.
www.l.google.com. 134 IN A 64.233.161.147
www.l.google.com. 134 IN A 64.233.161.99
www.l.google.com. 134 IN A 64.233.161.104
;; AUTHORITY SECTION:
l.google.com. 74242 IN NS g.l.google.com.
l.google.com. 74242 IN NS c.l.google.com.
l.google.com. 74242 IN NS a.l.google.com.
l.google.com. 74242 IN NS d.l.google.com.
l.google.com. 74242 IN NS b.l.google.com.
l.google.com. 74242 IN NS e.l.google.com.
l.google.com. 74242 IN NS f.l.google.com.
;; Query time: 3 msec
;; SERVER: 10.0.123.254#53(10.0.123.254)
;; WHEN: Wed May 20 19:55:40 2009
;; MSG SIZE rcvd: 212
~ 503 $dig -x www.google.com
; <<>> DiG 9.4.3-P1 <<>> -x www.google.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 1452
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;com.google.www.in-addr.arpa. IN PTR
;; AUTHORITY SECTION:
in-addr.arpa. 10800 IN SOA A.ROOT-SERVERS.NET. dns-ops.ARIN.NET. 2009052016 1800 900 691200 10800
;; Query time: 146 msec
;; SERVER: 10.0.123.254#53(10.0.123.254)
;; WHEN: Wed May 20 19:56:16 2009
;; MSG SIZE rcvd: 112
~ 501 $dig www.google.com
; <<>> DiG 9.4.3-P1 <<>> www.google.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27910
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 7, ADDITIONAL: 0
;; QUESTION SECTION:
;www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 518838 IN CNAME www.l.google.com.
www.l.google.com. 134 IN A 64.233.161.147
www.l.google.com. 134 IN A 64.233.161.99
www.l.google.com. 134 IN A 64.233.161.104
;; AUTHORITY SECTION:
l.google.com. 74242 IN NS g.l.google.com.
l.google.com. 74242 IN NS c.l.google.com.
l.google.com. 74242 IN NS a.l.google.com.
l.google.com. 74242 IN NS d.l.google.com.
l.google.com. 74242 IN NS b.l.google.com.
l.google.com. 74242 IN NS e.l.google.com.
l.google.com. 74242 IN NS f.l.google.com.
;; Query time: 3 msec
;; SERVER: 10.0.123.254#53(10.0.123.254)
;; WHEN: Wed May 20 19:55:40 2009
;; MSG SIZE rcvd: 212
DNS log
20-May-2009 17:48:36.385 client 208.76.70.146#38920: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:48:39.832 client 208.87.172.39#18667: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:49:05.935 client 208.76.70.30#56086: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:49:06.890 client 208.76.70.29#61479: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:49:40.768 client 208.76.70.160#54907: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:50:10.762 client 208.76.70.161#23440: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:50:16.587 client 208.76.70.30#52156: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:50:21.133 client 208.87.172.39#55383: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:50:40.750 client 208.76.70.31#12217: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:50:46.863 client 208.76.70.29#50178: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:50:47.163 client 208.76.70.30#63215: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:50:51.136 client 208.87.172.39#32036: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
20-May-2009 17:59:16.755 client 208.78.169.235#33034: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 17:59:16.797 client 208.78.169.235#33034: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 17:59:16.842 client 208.78.169.235#33034: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 18:17:20.120 client 204.11.51.59#32943: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 18:17:20.167 client 204.11.51.59#32943: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 18:17:20.213 client 204.11.51.59#32943: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 19:05:27.917 client 208.78.169.234#32921: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 19:05:27.961 client 208.78.169.234#32921: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 19:05:28.002 client 208.78.169.234#32921: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 19:21:00.992 client 204.11.51.60#32973: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 19:21:01.037 client 204.11.51.60#32973: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
20-May-2009 19:21:01.085 client 204.11.51.60#32973: view com.apple.ServerAdmin.DNS.public: query (cache) './NS/IN' denied
DCHP log
May 20 17:51:13 server bootpd[5286]: DHCP REQUEST [en0]: 1,0:16:cb:c1:fd:bf <Extreme-Agitation>
May 20 17:51:13 server bootpd[5286]: ACK sent Extreme-Agitation 10.0.123.2 pktsize 300
May 20 18:16:33 server bootpd[5347]: can't open /etc/bootptab
May 20 18:16:33 server bootpd[5347]: server name server.coldcasey.com
May 20 18:16:33 server bootpd[5347]: interface en0: ip 10.0.123.254 mask 255.255.255.0
May 20 18:16:33 server bootpd[5347]: bsdpd: re-reading configuration
May 20 18:16:33 server bootpd[5347]: bsdpd: shadow file size will be set to 48 megabytes
May 20 18:16:33 server bootpd[5347]: bsdpd: age time 00:15:00
May 20 18:16:33 server bootpd[5347]: DHCP REQUEST [en0]: 1,0:16:cb:c1:fd:bf <Extreme-Agitation>
May 20 18:16:33 server bootpd[5347]: ACK sent Extreme-Agitation 10.0.123.2 pktsize 300
May 20 18:35:26 server bootpd[5392]: can't open /etc/bootptab
May 20 18:35:26 server bootpd[5392]: server name server.coldcasey.com
May 20 18:35:26 server bootpd[5392]: interface en0: ip 10.0.123.254 mask 255.255.255.0
May 20 18:35:26 server bootpd[5392]: bsdpd: re-reading configuration
May 20 18:35:26 server bootpd[5392]: bsdpd: shadow file size will be set to 48 megabytes
May 20 18:35:26 server bootpd[5392]: bsdpd: age time 00:15:00
May 20 18:35:26 server bootpd[5392]: DHCP DISCOVER [en0]: 1,0:16:cb:bb:57:14 <TSP>
May 20 18:35:26 server bootpd[5392]: OFFER sent TSP 10.0.123.7 pktsize 344
May 20 18:35:28 server bootpd[5392]: DHCP REQUEST [en0]: 1,0:16:cb:bb:57:14 <TSP>
May 20 18:35:28 server bootpd[5392]: ACK sent TSP 10.0.123.7 pktsize 344
May 20 18:37:31 server bootpd[5392]: DHCP REQUEST [en0]: 1,0:23:df:65:1:a9
May 20 18:37:31 server bootpd[5392]: NAK sent <no hostname> 10.0.123.12 pktsize 300
May 20 18:37:31 server bootpd[5392]: DHCP DISCOVER [en0]: 1,0:23:df:65:1:a9
May 20 18:37:31 server bootpd[5392]: OFFER sent <no hostname> 10.0.123.12 pktsize 314
May 20 18:37:32 server bootpd[5392]: DHCP REQUEST [en0]: 1,0:23:df:65:1:a9
May 20 18:37:32 server bootpd[5392]: ACK sent <no hostname> 10.0.123.12 pktsize 314
May 20 18:44:29 server bootpd[5419]: can't open /etc/bootptab
May 20 18:44:29 server bootpd[5419]: server name server.coldcasey.com
May 20 18:44:29 server bootpd[5419]: interface en0: ip 10.0.123.254 mask 255.255.255.0
May 20 18:44:29 server bootpd[5419]: bsdpd: re-reading configuration
May 20 18:44:29 server bootpd[5419]: bsdpd: shadow file size will be set to 48 megabytes
May 20 18:44:29 server bootpd[5419]: bsdpd: age time 00:15:00
May 20 18:44:29 server bootpd[5419]: DHCP REQUEST [en0]: 1,0:16:cb:c1:fd:bf <Extreme-Agitation>
May 20 18:44:29 server bootpd[5419]: ACK sent Extreme-Agitation 10.0.123.2 pktsize 300
May 20 19:04:54 server bootpd[5564]: can't open /etc/bootptab
May 20 19:04:54 server bootpd[5564]: server name server.coldcasey.com
May 20 19:04:54 server bootpd[5564]: interface en0: ip 10.0.123.254 mask 255.255.255.0
May 20 19:04:54 server bootpd[5564]: bsdpd: re-reading configuration
May 20 19:04:54 server bootpd[5564]: bsdpd: shadow file size will be set to 48 megabytes
May 20 19:04:54 server bootpd[5564]: bsdpd: age time 00:15:00
May 20 19:04:54 server bootpd[5564]: DHCP REQUEST [en0]: 1,0:16:cb:bb:57:14 <TSP>
May 20 19:04:54 server bootpd[5564]: ACK sent TSP 10.0.123.7 pktsize 344
May 20 19:07:15 server bootpd[5564]: DHCP REQUEST [en0]: 1,0:23:df:65:1:a9
May 20 19:07:15 server bootpd[5564]: ACK sent <no hostname> 10.0.123.12 pktsize 314
May 20 19:08:14 server bootpd[5564]: DHCP REQUEST [en0]: 1,0:16:cb:c1:fd:bf <Extreme-Agitation>
May 20 19:08:14 server bootpd[5564]: ACK sent Extreme-Agitation 10.0.123.2 pktsize 300
May 20 19:34:36 server bootpd[5750]: can't open /etc/bootptab
May 20 19:34:36 server bootpd[5750]: server name server.coldcasey.com
May 20 19:34:36 server bootpd[5750]: interface en0: ip 10.0.123.254 mask 255.255.255.0
May 20 19:34:36 server bootpd[5750]: bsdpd: re-reading configuration
May 20 19:34:36 server bootpd[5750]: bsdpd: shadow file size will be set to 48 megabytes
May 20 19:34:36 server bootpd[5750]: bsdpd: age time 00:15:00
May 20 19:34:36 server bootpd[5750]: DHCP REQUEST [en0]: 1,0:16:cb:bb:57:14 <TSP>
May 20 19:34:36 server bootpd[5750]: ACK sent TSP 10.0.123.7 pktsize 344
May 20 19:36:48 server bootpd[5750]: DHCP REQUEST [en0]: 1,0:16:cb:c1:fd:bf <Extreme-Agitation>
May 20 19:36:48 server bootpd[5750]: ACK sent Extreme-Agitation 10.0.123.2 pktsize 300
May 20 19:36:57 server bootpd[5750]: DHCP REQUEST [en0]: 1,0:23:df:65:1:a9
May 20 19:36:57 server bootpd[5750]: ACK sent <no hostname> 10.0.123.12 pktsize 314

Queries to DNS servers are tried in the order listed as set in the Network prefpane. The values listed there are stored in the /etc/resolv.conf file and are updated by the Network prefpane.
If you do this in Terminal.app:
more /etc/resolv.conf
it should display:
nameserver 10.0.123.254
nameserver 208.67.222.222
nameserver 208.67.220.220
If you change the order in either your DHCP server -and renew the lease- or in the Network prefpane and run the command again, the order will change in /etc/resolv.conf. Clients will only query lower ordered name servers if the higher ordered one is busy with a query at the time they make a query or if multiple DNS servers are setup with load-balancing to round-robin the queries. On a small network like yours, you won't have that problem.
Where you are running into a problem is this, the domain that you have selected for your home network, coldcasey.com, has its SOA with DNS servers at name.com. You also have your internal DNS as the SOA for that zone. You send out queries from your internal DNS server as the SOA for that domain. Your firewall/router is passing inbound requests from the servers that you're connecting to in an attempt to retrieve zone information from your internal DNS. Your DNS is blocking that request. That's why you are seeing this:
20-May-2009 17:48:36.385 client 208.76.70.146#38920: view com.apple.ServerAdmin.DNS.public: query (cache) './A/IN' denied
in your logs. You need to block inbound port 53 TCP/UDP requests to your DNS at your router or firewall. Your firewall setting should allow inbound responses to outbound DNS queries on port 53 TCP/UDP. This will not affect your internal DNS from querying other servers. You need to change the zone for your internal network to something other than coldcasey.com.
In Server Admin under DNS, select your DNS server's settings -the 'gear' icon- and set recursion only for 'localnets'. You really don't need any 'forwarders', as your server will resolve all lookups that it isn't authoritative for with external DNS servers. Your devices with fixed IP addresses should be configured with only your internal DNS in their network config.
Also, configure your DHCP server's DNS setting to list only your internal DNS server -as adding forwarders only slows down resolution as they will pass queries onto the same authoritative DNS servers that yours would if it receives queries that it is not authoritative for. If you have a router or a WAP connected to your network, turn off the DHCP servers in those devices.
You should also configure the DHCP scope to hand out a few address on your home network instead of the entire address range, say from 10.0.123.200 - 10.0.123.253, that should be more than enough for several VPN clients -or a LAN party. Any static IP numbers for internal devices can be set in the range from 10.0.123.2 - 10.0.123.199 -plenty of numbers there and you won't have to setup static mappings.
When using 'dig' to resolve IP addresses/names, the '-x' option, is for reverse lookups -that's why you're getting no information when you do this:
dig -x www.google.com
the correct usage is:
dig www.google.com
Which returns this:
;; ANSWER SECTION:
www.google.com. 518838 IN CNAME www.l.google.com.
www.l.google.com. 134 IN A 64.233.161.147
www.l.google.com. 134 IN A 64.233.161.99
www.l.google.com. 134 IN A 64.233.161.104
in the 'ANSWER' section. If you were to do this:
dig -x 64.233.161.147
it would come back as:
;; ANSWER SCTION:
147.161.233.64.in-addr.arpa. IN PTR www.l.google.com.
or something similar/different as they have their servers DNS round-robined for load-balancing.
For your internal network, if you do this:
dig 10.0.123.254
you get no answer because that's not a correct query.
If you do this:
dig -x 10.0.123.254
it should return:
;; ANSWER SECTION:
254.123.0.10.in-addr.arpa. IN PTR server.coldcasey.com.
in the ANSWER section. Therefore, if you do this:
dig server.coldcasey.com
it will return:
;; ANSWER SECTION:
server.coldcasey.com. 134 IN A 10.0.123.254
which would be correct.

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this._parent.pmvOpen.pause();
this._parent.chart1.stop();
this._parent.chart2.stop();
trace(this+" clicked");
sending_lc.send("my_lc_as2", "pauseF");
My recieving code as it is right now is:
receiving_lc = new LocalConnection();
receiving_lc.gotoF = function(n:Number){
trace("received "+n);
    gotoAndPlay(n);
receiving_lc.connect("my_lc_as2");
This is recieving for my frame forwarding. So I would need to put a new function in this that calls out the video. To call out the video to be controled would it look something like:
receiving_lc = new LocalConnection();
receiving_lc.gotoF = function(n:Number){
trace("received "+n);
    gotoAndPlay(n);
receiving_lc.pauseF = function(pause){
     pmvOpenl.pause(n);
receiving_lc.connect("my_lc_as2");
This seems to work...I will try to do it with another video on another frame and see what happens. Thanks a bunch man. If this works down the line I think I might have this.

Online connection pause

HI guys!
I updraged all the software on my 9800 and eversince then, whenever i put the keylock on or the screen goes black from the time out, the Internet connection will 'pause' and only return if the screen is active.
I play an online web based game, this i am to have to make the screen active all the time as well as set the austo dim to a full timer.
Anybody able to help?

bump

Router DNS stopped allowing connections.

Hello,
My Cisco DPC3825, will not act as a DNS server anymore. If I go to network properties and put in my provider's DNS, it works fine. If I connect with just a wireless device, It says "no internet connection".
It was working fine until I started up the machines with wireless connections. Can this be resolved or do I need a new cable modem/router?
Thank you in advance.
John

Wrong forum. Feedback Forum is dedicated to opinions, suggestions, concerns, and feedback on the new Cisco Support Community.
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The Cisco Support Community Team
Please delete your question here and recreate it in more appropriate forum. You have little chance to receive valuable answer here.

Slow DNS Lookups after connecting via PPP VPN

I have this very annoying problem and just can't seem to find a method to resolve it.
When I connect to my work network via a PPP VPN connection, all internet connectivity thereafter takes forever to do a DNS lookup. So when I browse the internet it takes ages before the page is displayed back.
If I also do a ping in finder for a random URL, www.google.com for example, it sits there for nearly a minute before I get a response. If I then immediately perform the ping again, I get a response straight away. So it seems once it's resolved the domain name, it gets stored in a cache somewhere. If I try another domain name, I get the same delay and then it eventually gets through.
As soon as I close the VPN connection, service is resumed and DNS lookups work fast.
I've also made sure I've unchecked the option to "Send all traffic over VPN connection".
I've also set my 'Service Order' to have my wireless Airport connection in the No #1 position.
The other thing I've tried is deleting the default route (via Terminal) and adding one manually that points to my wireless router, again without success.
Does anyone have any other ideas I could try? I've also recently re-installed a fresh copy of Leopard in case something was stuffed up, but the problem is still there after installation.
Hoping someone has an easy solution!
Many thanks

I seem to have found a work-around. There is probably a neater way of doing this but here goes.
Here is my setup:
Airport Wireless to my home router
PPP VPN connection to my office windows network
3G connection via mobile phone
My aim was to be able to connect to my office network via wireless at home or via my cellular data connection, but continue to route all non-work traffic via the main connection (wireless/3G).
The #1 problem I had once I connected to my office VPN on either wireless or 3G, was that DNS lookups to general internet sites took forever. So to get around this, I created TWO VPN connections to my office network in Network Preferences and in both connections I made sure the option to send all traffic over VPN was left UNCHECKED.
The first connection I then designated for use when connecting wirelessly at home. Here I manually added the IP address of my home router as a DNS entry.
The second connection I did the same by adding a new DNS entry, except here I used the DNS server of my cellular data connection, in this case T-Mobile UK.
When connecting to my office network I just use either of the above connections depending on whether I am connecting wirelessly at home or via my mobile phone.
It seems a bit long winded I grant you, but after literally months of trying to resolve this annoying problem, this appears to be the only fix that works.
The downfall of this would be that DNS resolution to any servers on your office network might not work, but that isn't a problem for me since I manually add any servers I use at work to my local hosts file. This negates any need for DNS lookups and actually speeds up access to my work servers.
In amongst this I did several reboots, so you give your machine a reboot once you've completed the above steps, just in case.
The 3G connection won't work for you if your provider changes the DNS server every time you connect, but this is unlikely.
If anyone's got any comments, I'd love to hear them.
Cheers
Phil

Could the iTunes suggested fixes (i.e. DNS flush) CAUSE connectivity issues

I too have recently downloaded the latest version of iTunes and tried unsuccessfully to connect to the iTunes store via my iPod Touch. iTunes even tried to update the latest iPod software but couldn't connect. But here is the my real concern, I tried all of the fixes suggested by iTunes/Apple with no success, however, since these "fixes", my other programs that have worked fine just prior to these "fixes" suddenly don't recognize an internet connection either. I tried to do a Java update...couldn't connect. I downloaded a new game from Gamehouse and tried to login to FunPass (as always)...couldn't connect, however, any game downloaded prior to yesterday's "fixes"...there is no problem connecting. I even yelled at AT&T Yahoo support thinking they were the problem (recent issue with their Protection Suite). Finally, I purchased, downloaded, and ran a new antivirus program thinking a possible virus or malware or adware or something...found & fixed stuff (mostly spyware), but it can't update or finish registering because it also thinks there isn't a connection. Could flushing the DNS (as suggested) cause connectivity problems with my other programs?? Or, any suggestions?? I am desperate

Flushing the DNS entries shouldn't be a problem, as they should just get rebuilt.
DNS stands for Domain Name System, it's just an "address" for all the different computers connected to the internet to find each other.
Here is a good explanation on that process:
+When a computer visits a website for the first time, it stores the website's DNS information in cache. The next time the computer visits a website, it looks in the cache to see if the website's information is present to use. This can cause problems if the website's DNS information has changed since the computer's last visit. Flushing the cache removes all the information stored in cache, forcing the computer to find the new DNS information for the website.+
Message was edited by: Katrina S.

RV016 DNS on PPPoE connection

Hi all,
I am trying to install a RV016 behind a layer 2 managed switch provided by ISP. The ISP is using PPPoE to allow access. I am able to see that I am connected to ISP's device and I receive a real world IP address on WAN1 of RV016. I am not able to resolve any web addresses either through router diag screen or from connected pc.
DNS entry in DHCP panel is sett to 0.0.0.0 and after connecting to pppoe the summary shows 8.8.8.8
Router was configured and then reset back to factory after initial trouble. Still same results
Any thoughts?

Not getting all that much attention but I have a hard time believing that I am the only one that ever faced this issue. At this point it seems that the simple act of asking the device to functin as a router and not a gateway is the culprit. I was able to reproduce similar results on a static IP connection in a different network, I will test this theory this evening with the PPPoE connection

Ask another DNS server if connection fails with the current one

Hello,
I'd like to ask if there's an addon available or a hidden feature in Firefox which allows it to enable trying to use other DNS servers if a connection failed to a server. Lets do an example, would be the easiest way of explaining:
1. I want to connect to Google.com
2. Firefox / Windows asks the DNS server for the IP
3. Firefox tries to connect to Google but fails (Website took to long to answer for example)
4. Firefox will try another DNS server you have entered in your IPv4 DNS Page
Or does Firefox already do that? Because sometimes it fails to connect to a server while using a special DNS server. If I change the settings to another DNS Server it works.
Thank you

Please update to version 20.

DNS errors + Intermittent Connectivity Help

For the last 5 days my internet has had intermittent connectivity. It is throughout my entire home network of internet access. We have not had any storms or changes to our settings or connections for it to be anything on our network. This issue also happened in the past. Then after X amount of days, it was magically be fixed. When the internet does work, there are no issues and it works fine, which again makes me think it is not on our end and it is Verizon's fault.
When I check the system log of my modem, it has a TON of "DNS request timeouts" or errors saying some other stuff about DNS issues.
My modem/router is Actiontec GT704-WG, I also don't use Wireless internet which is usually related to intermittent connections but that shouldn't be the case.
So is this an issue with Verizon's lines/ servers / connections? Or is it actually something wrong with my network?

It is probably a network issue, but the first step is usually to rule out the local equipment, so restarting the PC and the modem/router is a good starting point.
I have yet to come to encounter an ISP that competently manages their DNS equipment, and you will find a number of Verizon Techs who post here who will tell you to change from the Verizon automatically assigned DNS's to Open DNS.
visit www.opendns.com for detail instructions on how to do so. I changed to open DNS months ago.
So if you still have a problem after you have rebooted the equipment, and changed to OpenDNS, it is almost certainly a Verizon network issue, although convincing Verizon of that can be quite challenging.
Good luck

TCP DNS Connection Refused

I am testing an application which uses tcp for dns.
My ActionTec router is set to "Medium" so it should allow all outbound connections.
When I use a dns server on my network all is well. When I try to use the ActionTec for dns I get connection refused with tcp requests but udp requests go through. I suspect the dns server on the ActionTec does not support tcp but I would like confirmation in case there is a setting I can change to make it work.
$ host yahoo.com
yahoo.com has address 98.138.253.109
yahoo.com has address 98.139.183.24
yahoo.com has address 72.30.38.140
yahoo.com mail is handled by 1 mta5.am0.yahoodns.net.
yahoo.com mail is handled by 1 mta7.am0.yahoodns.net.
yahoo.com mail is handled by 1 mta6.am0.yahoodns.net.
$ host -T yahoo.com
;; Connection to 192.168.1.1#53(192.168.1.1) for yahoo.com failed: connection refused.
Thanks,
AustinPowered

Keep in mind the ActionTecs are based around the dnsmasq lightweight DNS resolver if I remember correctly. If Verizon/ActionTec is using a version of dnsmasq older than v2.10, then it is a known limitation of dnsmasq to not support TCP queries. If someone can confirm what version the FiOS routers have, that would be great. This tool may be able to identify it:
http://netalyzr.icsi.berkeley.edu/
If you'd like me to analyze it, please send me a private message with the URL to your result, unless you don't mind your IP address being given out to the forums.
========
The first to bring me 1Gbps Fiber for $30/m wins!

Connect to server thru DNS using VPN

I want to do the following :
- connect to my server thru VPN (this is working) using VPN server of the OS X Server
- command -K connecting thru the fileshare on the same server using the dns name of my server. (not working)
when i see the settings of the VPN connection i see my DNS server in the tab DNS. But connection is not established.

Are you typing the hostname of the server in the 'Connect to Server' dialog? or are you hoping to see the remote servers appear in the list when you Browse?
The former should work. The latter will not (at least not without extra significant hoops).
If you are trying the former, and you can't hit the server by name, check whether you can hit it via IP address. Also check whether you can resolve the name via some other means (e.g nslookup or dig in Terminal.app, or Network Utility.app). That will at least help pinpoint the problem.

DNS suspected in connection pauses

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