Cups server can't listen - accept connections to 127.0.1.1 ( Bad request )
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
cups (Ubuntu) |
Incomplete
|
Undecided
|
Unassigned |
Bug Description
As we know ubuntu binds the following
127.0.0.1 localhost
127.0.1.1 hostname
We assume that my hostname is afterburner
Cups listens by default to localhost - 127.0.0.1 so if you try to access it using your hostname it fails so i proceed as follows
In the cupsd.conf
If i comment out the " port 631 " and add
Listen afterburner:631
im getting bad request when trying to open http://
The same is happening with the
Listen 127.0.1.1:631
All this happening when trying to access cups webpage form the pc that running the cups , if you try to access the cups server form a lan pc using the http://
So my question is why using all the different configurations im not able to access cups webpages from the same pc using the hostname ?
I can only access cups from the same pc using
http://
http://
when using the default cupsd.conf that listens to "port 631"
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: cups 1.6.1-0ubuntu11
ProcVersionSign
Uname: Linux 3.5.0-19-generic x86_64
NonfreeKernelMo
ApportVersion: 2.6.1-0ubuntu7
Architecture: amd64
Date: Tue Dec 4 11:19:58 2012
InstallationDate: Installed on 2012-11-14 (19 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
Lpstat: Error: command ['lpstat', '-v'] failed with exit code 1: lpstat: No destinations added.
MachineType: System manufacturer System Product Name
MarkForUpload: True
Papersize: letter
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/30/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1601
dmi.board.
dmi.board.name: Blitz Formula
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: System Product Name
dmi.product.
dmi.sys.vendor: System manufacturer
mtime.conffile.
CVE References
summary: |
- Cups server can't listen in any other ip than the default ( Bad + Cups server can't listen - accept connections to 127.0.1.1 ( Bad request ) |
description: | updated |
I was about to file this same bug. After a few days of research, I found the following similar or related bug reports:
https:/ /bugs.debian. org/cgi- bin/bugreport. cgi?bug= 525910 /bugs.launchpad .net/ubuntu/ +source/ cups/+bug/ 763755 /answers. launchpad. net/ubuntu/ +source/ cupsys/ +question/ 7880 thismightbehelp ful.blogspot. ca/2008/ 09/remote- access- to-cups- web-interface. html
https:/
https:/
http://
Note, the issue begins in 1.4.x versions of cups, <=1.3 should work fine, so a downgrade might be your desired course of action if that's a possibility for you.
None of the solutions provided in those helped. In case you find this via google, let me save you some time and enumerate them here:
-In cups.conf, add (or uncomment, or modify) a line at the end to read:
ServerAlias *
-In cups.conf, add (or uncomment, or modify) the entry for "<Location /admin>" to:
Allow from all
or
Allow from [some ip here]
-In cups.conf, add a line that reads:
Listen 192.168.1.1:631
or
Listen *:631
(or whatever port you want to use instead of 631)
(with the IP you want to allow access to)
The problem shows up as lines similar to the following in your cups error_log file:
E [23/Nov/ 2015:15: 35:28 -0500] Request from "localhost" using invalid Host: field "cups_local_ host:631"
The most relevant link was:
https:/ /bugs.debian. org/cgi- bin/bugreport. cgi?bug= 530027
which traces the problem to this patch:
https:/ /bugzilla. redhat. com/attachment. cgi?id= 335489 /bugs.debian. org/cgi- bin/bugreport. cgi?bug= 530027# 56 )
(direct link to msg: https:/
Which was submitted to solve:
https:/ /security- tracker. debian. org/tracker/ CVE-2009- 0164
So with that info, I downloaded the sources on my fedora (fc17) machine, modified them, rebuilt the packages and installed, and everything works now as (I) intended.
I have attached the patch I wrote which solves it for me,
WARNING: this might introduce some security issues (related to CVE-2009-0164), which I didn't delve too deeply to know whether they do or not.
So, USE AT YOUR OWN RISK.
Read this too: www.cups. org/str. php?L3183
http://
When running the patched version, you still need to have the proper Listen and ServerAlias entries, of course.