In proxy server usage, all the data sent to service that is being used and must pas through the proxy server before sent to server. Therefore it is feasible risk that malicious proxy severs may record everything including passwords and unencrypted logins.
Sometime, initial call takes longer than you had expected ever you know there is some extra work going on. There is a noticeable delay in these cases, sometimes on order of five, ten or twenty seconds as well.
It is a longer delay caused by the unavailable network resource. It can occur because you many be trying to solve your host name and DNS sever may not be working, you may be trying to contact your domain controller and that is not present, you may be trying to retry authorization with bad credential and you may have proxy misconfigured setting on your system.
Among all above problems, last one is more happening because it is unexpected way to be tripped out from system.
Automatic detection of proxy is scriptable way to find out proxy server with a little or no configuration on user's part and it uses variety of search mechanism such as DNS, DHCP and registry, in predefined order to located proxy configuration script. Also, there is a pool proof way to diagnose the issues with first long calls times. You just need to do some data gathering to configure out the network resource that is failing to respond and is attempting to access that same resource. |