cannot access gmail when bypassing proxy server (sometimes not always !!!!????)

Carnival Boy

I used to use Squid, but now use Trend Micro Worry-Free Business Security installed on all my clients. This handles antivirus and web protection, and the GUI makes it very easy to block specific websites or categories of websites. I haven't implemented any Active Directory integration, which is limiting, but I'm not sure how easy that is with Squid either?

I'm also trialling GFI Webmonitor, which offers a similar service but is cloud based, and therefore easier to manage our home workers.

But I used to like the Squid logs for investigating what users were up to at any given point in time. Neither Trend or GFI provides that functionality. So I may go back to Squid.

IT-ADMIN

what about this temporarily nature of this problem, anyone can guess with me how this occur only sometimes ????!!!!!

IT-ADMIN

can this have any explanation ?????

scottalanmiller

I think we need a network map to understand exactly how things are flowing through the existing proxy.

IT-ADMIN

ok, i will make a simple network map to make thing more clear

thank you very much

scottalanmiller

Thanks.

IT-ADMIN

ok, my network map is the following, if someone can guess with me why this problem happen only sometimes,

thank you so much fir any clarification ...

scottalanmiller

Thanks, that helps a lot.

IT-ADMIN

hopefully someone give me an explanation why this problem occur

scottalanmiller

We're wracking our brains on this but it is very odd, which, of course, is why you are having the issue

My only guess is that it has to do with the transparent proxy situation. The proxy is in line for all traffic, so it might be somehow interfering in an unpredictable way, but I cannot determine how.

IT-ADMIN

hhhh
tell my Mr Scott, did you ever face such situation when you find yourself unable to explain the cause of a problem, you can imagine how it is embarrassing, especially in the business environment, when your manager tell you : why you didn't find a solution for this problem, lol

IT-ADMIN

but i think only people like me who lack strong experience who face this problem

scottalanmiller

@IT-ADMIN said:

but i think only people like me who lack strong experience who face this problem

Everyone does. The real difference with experience, I think, is recognizing when troubleshooting something complex is not a good use of time and working around it or approaching it differently helps. Of course, with experience, your troubleshooting will improve so you solve a higher percentage of challenges, but the challenges tend to get harder too.

In your case, I recommend working around, at least temporarily so that you can make the business happy and deal with finding an "ideal" solution when time allows.

scottalanmiller

@IT-ADMIN said:

hhhh
tell my Mr Scott, did you ever face such situation when you find yourself unable to explain the cause of a problem, you can imagine how it is embarrassing, especially in the business environment, when your manager tell you : why you didn't find a solution for this problem, lol

Yes, all the time. It's the nature of such a complex business. IT systems have so many moving parts and so many of them (millions, literally) over which we have no direct control. There is no way for the IT department to have total control, it's just not possible. Sometimes things cannot be solved in any reasonable way.

IT-ADMIN

thank you very much for you consolidation

Nara

Sorry, but I've been away for a while. Are you still working on figuring out the issue, or did you move on to another product?

scottalanmiller

@Nara said:

Sorry, but I've been away for a while. Are you still working on figuring out the issue, or did you move on to another product?

Did you manage to reset your password?

Nara

@scottalanmiller said:

@Nara said:

Sorry, but I've been away for a while. Are you still working on figuring out the issue, or did you move on to another product?

Did you manage to reset your password?

Yep!

scottalanmiller

@Nara said:

@scottalanmiller said:

@Nara said:

Sorry, but I've been away for a while. Are you still working on figuring out the issue, or did you move on to another product?

Did you manage to reset your password?

Yep!

Glad that they got that fixed. I know that it affected a few people at least.

IT-ADMIN

yes i resolve that issue finally, i get all users pass through the pfSense, then i enter unrestricted IPs, and it work fine till now !

thank you very much