HTTP error 504: proxy loop detected

nomorewindows · 2017-08-06 17:05:46

I believe this message is coming from polipo.
I change proxies and the message goes away and shows up on any browser.
I think this is related to the localhost being changed to archlinux with the recent kernel change/upgrade (as it can't resolve hostname archlinux).
Possibly a change to /etc/hosts to make archlinux...loopback...but if there are several machines.

Last edited by nomorewindows (2017-08-06 17:08:03)

loqs · 2017-08-06 17:21:35

nomorewindows wrote:

I think this is related to the localhost being changed to archlinux with the recent kernel change/upgrade (as it can't resolve hostname archlinux).

What kernel change was this?

nomorewindows · 2017-08-06 17:28:07

loqs wrote:

nomorewindows wrote:
I think this is related to the localhost being changed to archlinux with the recent kernel change/upgrade (as it can't resolve hostname archlinux).
What kernel change was this?

To linux 4.12.4-1

nomorewindows · 2017-08-06 17:31:04

Apparently other problems with current kernel upgrade:
https://bbs.archlinux.org/viewtopic.php?id=228847

loqs · 2017-08-06 18:08:51

Can you elaborate on what you mean by localhost being changed to archlinux?

seth · 2017-08-06 19:10:19

And post the output of "hostnamectl"

nomorewindows · 2017-08-06 20:04:17

   Static hostname: n/a
Transient hostname: archlinux
         Icon name: computer-laptop
           Chassis: laptop
        Machine ID: 
           Boot ID: 
  Operating System: Arch Linux
            Kernel: Linux 4.12.4-1-ARCH
      Architecture: x86-64

seth · 2017-08-06 20:08:17

https://wiki.archlinux.org/index.php/Ne … e_hostname

Networkmanager will otherwise make one up and "adjust" your hosts, breaking half the system.

nomorewindows · 2017-08-06 22:30:33

seth wrote:

https://wiki.archlinux.org/index.php/Ne … e_hostname
Networkmanager will otherwise make one up and "adjust" your hosts, breaking half the system.

Even with connmand/cmst?

seth · 2017-08-06 22:39:48

I don't know how connman behaves, but you do get a transient hostname and suspect a hostname related issue and have trouble to resolve the transient hostname.
So set a static one.

nomorewindows · 2017-08-07 00:51:45

It looks like after I change the hostname on the machine with polipo and restart it, it starts behaving again. Not sure about the other clients. But then if I try to set the polipo machine back to localhost.localdomain, then it reports in systemctl status polipo

Couldn't determine host name -- using polipo.

seth · 2017-08-07 06:55:52

if I try to set the polipo machine back to localhost.localdomain

Then don't do that.
"localhost" or "localhost.localdomain" can (and by default "will") resolve 127.0.0.1 anyway, but is not suited as a hostname for exactly that reason: every node in the subnet is "localhost"

On a sidenote: polipo is unmaintaned.

Arch Linux

#1 2017-08-06 17:05:46

HTTP error 504: proxy loop detected

#2 2017-08-06 17:21:35

Re: HTTP error 504: proxy loop detected

#3 2017-08-06 17:28:07

Re: HTTP error 504: proxy loop detected

#4 2017-08-06 17:31:04

Re: HTTP error 504: proxy loop detected

#5 2017-08-06 18:08:51

Re: HTTP error 504: proxy loop detected

#6 2017-08-06 19:10:19

Re: HTTP error 504: proxy loop detected

#7 2017-08-06 20:04:17

Re: HTTP error 504: proxy loop detected

#8 2017-08-06 20:08:17

Re: HTTP error 504: proxy loop detected

#9 2017-08-06 22:30:33

Re: HTTP error 504: proxy loop detected

#10 2017-08-06 22:39:48

Re: HTTP error 504: proxy loop detected

#11 2017-08-07 00:51:45

Re: HTTP error 504: proxy loop detected

#12 2017-08-07 06:55:52

Re: HTTP error 504: proxy loop detected

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