How do I find out my proxy server adress and port - UK Centre

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Sunday 22 March 2015

How do I find out my proxy server adress and port

The auto proxy detection system works by downloading a file called wpad.dat from the host wpad. First confirm this host exists from a co... thumbnail 1 summary
The auto proxy detection system works by downloading a file called wpad.dat from the host wpad. First confirm this host exists from a command prompt: ping wpad If it doesn't exist, you may have to put the correct DNS suffix. In the same command prompt, type ipconfig /all You should see a Primary DNS Suffix and a DNS Suffix Search List Try appending each of these with a . to wpad: ping wpad. If any of these work, then in your browser enter http://wpad./wpad.dat. This will download the proxy auto configuration file you can open in notepad.exe Toward the bottom of this file, you should see a line saying PROXY ; It might be repeated if you have multiple proxies available. The host and port are what you need. If this file doesn't exist, then either there is no proxy server, or the proxy server is being provided by dhcp (note that this would only work with IE, so if firefox can surf, this is not the method being used). If you don't have access to the dhcp server to see what it is sending, the easiest way would be to open a site in ie, then go to a command prompt. Type netstat -ban This will provide a list of connections made with the process id of each process. Go to Task Manager, and select View/Select Columns and enable PID (Process Identifier). Look for the PID of iexplore.exe in the list returned by netstat -ban This will reveal the proxy ip and port. shareimprove this answer edited Oct 14 '11 at 1:48 answered Oct 14 '11 at 1:22 Paul 31.3k66599 I tried in both IE and Firefox, neither could find that site. – Mike Christensen Oct 14 '11 at 1:23 I updated my answer with some more detail... – Paul Oct 14 '11 at 2:46 It probably works on some systems, but there's no host called "wpad" here (with or without the DNS suffix). I think this might be configured through some sort of domain policy or logon script, since it's greyed out in IE and cannot be changed. Anyway, I ended up writing a little C# program to get it instead. Hopefully your answer will help someone though! – Mike Christensen Oct 14 '11 at 15:04 2 To download the automatic configuration script I find it is easier to just copy and paste the link to the script into the address bar (YMMV)… – mousio Oct 17 '11 at 21:30 1 Yea the problem with that is the domain policy prevents that from being changed, and IE disables the box for the URL. It won't let you copy it or see the entire thing heh. – Mike Christensen Oct 30 '11 at 19:03

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