DNS

[Tareq Emad Al Asfoor]

Hi all, 

I'm trying to create IP SLA for DNS .. I can ping the ip from cisco and can get trace for it . but when i show the ip sla for DNS i get error return code 

Latest operation start time: 20:44:34 UTC Sun Apr 24 2016
Latest operation return code: Timeout
Number of successes: 0
Number of failures: 1
Operation time to live: Forever

Any advice ... Thanks in advance  

[Tareq Emad Al Asfoor]

ip name-server x.x.x.x

SW# telnet www.btc.com.sa 80
Translating "www.btc.com.sa"

% Bad IP address or host name

Although i have ping in the DNS IP .. I need to using my DNS server where ( x.x.x.x) is my DNS server IP 

So any advice ... Thanks in advance 

[Philip D'Ath]

Perhaps you have DNS lookups turned off.  Try adding:

ip domain-lookup

[Tareq Emad Al Asfoor]

I think you are right .. I will check .. Thanks Mate :)

[Tareq Emad Al Asfoor]

Now Every thing working fine .. but when i using the name-server 8.8.8.8 although i created 

ip name-server x.x.x.x

So

http get http://www.btc.com.sa/flash/AC_RunActiveContent.js name-server 8.8.8.8

 It working fine 

but when i using my DNS server ip 

http get http://www.btc.com.sa/flash/AC_RunActiveContent.js name-server x.x.x.x 

i get this error 
Latest operation return code: DNS query error

[Philip D'Ath]

At a guess; you have an access-list or firewall configured blocking the DNS queries.

[Tareq Emad Al Asfoor]

This mean filter on my ip DNS server ? ... Thanks .. I have to check ... I will give you feedback for the update .. Thanks 

[Philip D'Ath]

It could be on the DNS server, the router itself, or some device between the router and the DNS server.

[Tareq Emad Al Asfoor]

But the DNS IP is pingable from my router .. but no trace route  on it 

[Tareq Emad Al Asfoor]

Well, I will check this issue .. Last thing plz what about the HTTPS , As you know most of pages in right now HTTPS .. I think the IP SLA for HTTP not support HTTPS such as facebook page .. So any advice about this issue .. Thanks 

[Tareq Emad Al Asfoor]

Thanks .. My problem solved .. 

[Philip D'Ath]

ps. Dump the flash from the web site ... time for HTML5.