Zabbix using illegal cookies?!

[spanky85]

Hi, I've noticed something quite strange. I'm running Ubuntu 10.10, with Zabbix 1.8.2. I also have sabnzbd installed. If I go to the web interface of sabnzbd whilst I have Zabbix open in another tab, looking at any of the pages in 'configuration', I get this error:

500 Internal Server Error

The server encountered an unexpected condition which prevented it from fulfilling the request.

Traceback (most recent call last):
  File "/usr/share/sabnzbdplus/cherrypy/_cprequest.py", line 593, in respond
    self.process_headers()
  File "/usr/share/sabnzbdplus/cherrypy/_cprequest.py", line 661, in process_headers
    self.cookie.load(value)
  File "/usr/lib/python2.6/Cookie.py", line 627, in load
    self.__ParseString(rawdata)
  File "/usr/lib/python2.6/Cookie.py", line 660, in __ParseString
    self.__set(K, rval, cval)
  File "/usr/lib/python2.6/Cookie.py", line 580, in __set
    M.set(key, real_value, coded_value)
  File "/usr/lib/python2.6/Cookie.py", line 455, in set
    raise CookieError("Illegal key value: %s" % key)
CookieError: Illegal key value: cb_/zabbix/hostgroups.php_parts

In this case I was looking at the host groups page, and I see "cb_/zabbix/hostgroups.php_parts" at the bottom. If I'm on the items page, that hostgroups is replaced by 'items'. If I go back to the Zabbix dashboard and reload the sabnzbd page, it loads fine.

Is this a problem with sabnzbd, or with Zabbix? I presume it's Zabbix setting cookies incorrectly. What can I do about this?

[nelsonab]

The error is not that you have an "illegal cookie" it's that you don't have a key in the hash/array you sabnzbd is looking at. First thing to consider is have you configured sabnzbd correctly. Second can sabnzbd understand how Zabbix requires an authorization cookie first before you can do anything else.

Beyond that I can't help you much as this is the first time I have ever heard of sabnzb.

[spanky85]

Ok, I guess it's probably a problem on sabnzbd's end then, I'll ask about it in their forums.

[spanky85]

Turns out it's a problem in both Zabbix and sabnzbd; looks like there's a cookie naming conflict caused by both assuming they're the only running service. If I use the hostname for one and the IP for the other, they work fine!

Here's the relevant thread on the sabnzbd forum:
https://forums.sabnzbd.org/index.php?topic=6980.0

[nelsonab]

Zabbix does not assume it is the only service running. This is because Zabbix works very well in a virtual hosted environment. It is even possible to run two different zabbix environments (zabbix1.example.com, zabbix2.example.com) on the same Apache server.

The cookie however I do not think has anything in it making it unique to the domain it's running on, but rather follows a consistent format across all Zabbix servers.