[Webinar] Streamline your web hosting managementRegister Today

x
?
Solved

squid proxy

Posted on 2013-10-24
3
Medium Priority
?
1,061 Views
Last Modified: 2013-11-16
I have squid proxy on suse enterprise linux 11.2, for some maintenance puposes i have to swap the proxy ip with Windows ISA server. after that my squid is not working,so i am getting the following error in my access log file and none of user is able to browse the internet.

1382609509.685 239818 172.16.225.203 TCP_CLIENT_REFRESH_MISS/504 0 GET http://dnl-07.geo.kaspersky.com/index/u0607g.xml.dif - DIRECT/130.117.190.137 text/html
1382609515.918   9913 172.16.225.203 TCP_MISS/000 0 CONNECT 62.213.110.174:443 - NONE/- -
one more thing i am getting the different dns records in nslookup query

while i checked in the dns server there is only one record against the proxy with the new ip but on the linux machine itself there are three records.I have cleared the cache uodated the dns record even restarted the proxy server but in vain.

40.0.16.172.in-addr.arpa        name = isa.abc.local
40.0.16.172.in-addr.arpa        name = proxy-web.abc.local.
40.0.16.172.in-addr.arpa        name = proxy-server.abc.local
0
Comment
Question by:kastro Abbasi
  • 2
3 Comments
 
LVL 13

Accepted Solution

by:
Daniel Helgenberger earned 2000 total points
ID: 39599153
I am not sure if I get what you have done?
1 shutdown squid
2 swapped IPs with another proxy
3 start squid
4 swiched back IPs
All was working well until after step 4.

TCP_CLIENT_REFRESH_MISS/504
TCP/504 is a gateway timeout - can you confirm squid can connect to the requested site? Maybe someth. went wrong when switching IPs or something (firewall) is blocking squid? Maybe iptables?

Basic debug on the cache server:
curl http://dnl-07.geo.kaspersky.com/index/u0607g.xml.dif

Open in new window

0
 

Author Comment

by:kastro Abbasi
ID: 39601837
no i can not even browse on the proxy itself. But why i am geting the two records against this server updating the old records in dns server and clear the cache on this machine.
0
 
LVL 13

Expert Comment

by:Daniel Helgenberger
ID: 39601904
no i can not even browse on the proxy itself
What does this mean? Proxy has no wan connectivity?

There are many reasons why you could get those PTR's, most likely they are in the DNS you do your lookup against - and a left over from the IP switching. But don't worry, they to no harm and have nothing to do with your current problem. Consider cleaning up your reverse lookup zones to get rid of those PTRs.
0

Featured Post

Never miss a deadline with monday.com

The revolutionary project management tool is here!   Plan visually with a single glance and make sure your projects get done.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I. Introduction There's an interesting discussion going on now in an Experts Exchange Group — Attachments with no extension . This reminded me of questions that come up here at EE along the lines of, "How can I tell the type of file from its cont…
I have written articles previously comparing SARDU and YUMI.  I also included a couple of lines about Easy2boot (easy2boot.com).  I have now been using, and enjoying easy2boot as my sole multiboot utility for some years and realize that it deserves …
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
Suggested Courses
Course of the Month8 days, 15 hours left to enroll

590 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question