Unplanned
Last Updated: 24 Sep 2020 12:59 by ADMIN
san
Created on: 05 Jul 2020 07:37
Type: Feature Request
2
login behind corporate proxy

I am trying to login to fiddler anywhere on Ubuntu.  But since the system is behind proxy, while logging into proxy, i get network error.

I have configured the proxy in env variables as well as network settings >proxy, but it does not work.

Please provide a way to configure the corporate proxy for fiddler everywhere before login

 

13 comments
ADMIN
Nick Iliev
Posted on: 24 Sep 2020 12:59

Hi San,

 

The new version 1.1.0 of Fiddler Everywhere now includes a fix that allows the client to work with a pre-set proxy.

 

Regards,
Nick Iliev
Progress Telerik

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ADMIN
Nick Iliev
Posted on: 15 Sep 2020 08:00

Hello Charles,

 

The team is now actively working on a solution that will respect (or allow to change) the proxy settings used on the machine (where Fiddler Everywhere is running). We will update this thread once the solution is available live.

 

Regards,
Nick Iliev
Progress Telerik

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Chuck
Posted on: 14 Sep 2020 14:12

I have internet access, but we use a proxy.  I cannot get to the settings page on Fiddler everywhere because it is requiring me to login first and fails there.  I can log into Telerik using the internet browser.  

 

 

Attached Files:
Andrejus
Posted on: 14 Sep 2020 09:38
Hello Nick Iliev

I am also having the same issue. Fiddler not using system proxy settings. Maybe there is a list of servers where he is trying to connect? We can allow in corporate network connect to list server withou proxy. We see that he is trying to connect to server-54-230-237-114.ccu50.r.cloudfront.net; ec2-54-208-67-108.compute-1.amazonaws.com 

but i think they can change?
ADMIN
Nick Iliev
Posted on: 14 Sep 2020 05:48

Hello Michael,

 

Thank you for the detailed description of the issue! The team is currently looking for a way to provide more options to set proxy settings before Fiddler's login page. I update the post here once there is a viable solution to this issue.

 

Regards,
Nick Iliev
Progress Telerik

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Michael
Posted on: 08 Sep 2020 08:36

Sure. The details are - and I guess pretty much the same for any corporate network setup - that I'm behind a proxied connection. Without going through the corporate proxy you have zero access to the outside (DMZ) - only internal network IPs are allowed. End of story basically.

Fiddler needs to submit a user login in the very first step before it is possible to access the settings menu. This is not possible.

Unfortunately Fiddler apparently does not use the system proxy on default, because it goes straight to the "Network error" notification when I click the "Login" button. The problem would presumably be very easy to fix, by allowing the users to edit the fiddler settings - e.g. a limited set of settings such as system / manual proxy configuration - or - to allow some startup parameters to be provided thus setting the proxy up for Fiddler to use in this way.

If I try to start fiddler up with a non-proxied connection it works fine, as expected. I'm able to get into the settings menu and change the proxy configuration, albeit making the "network error" show up again, as the corporate proxy is of course not present from e.g. my mobiles hotspot wifi conn... So I can't save the settings :-/ ... At least, they are back to default when I switch back to the secured corporate proxy network....

Please fix this :-)

Thanks

Greg
Posted on: 08 Sep 2020 02:28

Could you guys provide more details on the specifics used in your corporate network - for example do you have direct access to internet (which is requirement for Fiddler Everywhere) or are you using some 3rd party security tools/firewalls?

My corporate network doesn't allow any direct internet access from end-user workstations. Instead, workstations are required to use an explicit (internal) proxy for all internet-destined HTTP and HTTPS transactions. Because of this Fiddler Everywhere will not launch since it insists on talking directly to some websites during startup. If it could be configured to use a proxy prior to startup (like by way of a HTTP_PROXY or HTTPS_PROXY env var) then that would at least allow the application to launch.

 

ADMIN
Nick Iliev
Posted on: 07 Sep 2020 05:46

Hey Charles and Michel,

 

Could you guys provide more details on the specifics used in your corporate network - for example do you have direct access to internet (which is requirement for Fiddler Everywhere) or are you using some 3rd party security tools/firewalls?

 

Regards,
Nick Iliev
Progress Telerik

Virtual Classroom, the free self-paced technical training that gets you up to speed with Telerik and Kendo UI products quickly just got a fresh new look + new and improved content including a brand new Blazor course! Check it out at https://learn.telerik.com/.

Chuck
Posted on: 04 Sep 2020 15:38

I am also having the same issue.  I could use the old Fiddler tool, but I cannot use Fiddler Everywhere.

 

 

 

Michael
Posted on: 01 Sep 2020 08:44
Same problem here. Behind corporate proxy, and I'm unable to start fiddler (get past the login startup form).
ADMIN
Nick Iliev
Posted on: 14 Jul 2020 06:21

Hello Greg,

 

Indeed at this very moment, FIddler Everywhere client requires an active Internet connection and won't work when there is no direct connection set up. I agree that this limits the usage so I've logged this one as an enhancement feature request - the team will discuss it at our next planning meeting.

Once again thank you for your valued feedback and observation! We will update this thread as soon as we have more insight into the matter.

 

Regards,
Nick Iliev
Progress Telerik

Greg
Posted on: 08 Jul 2020 17:10

This item is not Completed. That doc page for manually setting a proxy doesn't address this problem because it requires Fiddler Everywhere to already be up and running. How does anyone behind a no-direct-internet-access firewall actually launch Fiddler Everywhere prior to telling it to use an explicit proxy? It just hangs for me because it wants to talk directly to some internet resources (for updates and/or to force me to login ugh!). Even before the login page pops up I see hung TCP connection attempts which show up as SYN-SENT state sockets in netstat output. How do I tell Fiddler Everywhere to use a proxy even before it starts?

To reproduce this issue, try to launch Fiddler Everywhere behind a firewall that doesn't allow direct internet access and requires proxying.

 

 

ADMIN
Nick Iliev
Posted on: 07 Jul 2020 13:28

Hello San Sal,

 

The section for setting a manual proxy configuration is available atSettings > Gateway > Manual Proxy Configuration. Related documentation article can be found here.

 

Regards,
Nick Iliev
Progress Telerik

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