[squid-users] Need assistance debugging Squid error: ssl_ctrd helpers crashing too quickly

Yuri yvoinov at gmail.com
Mon Sep 11 20:19:50 UTC 2017


Everything happens once for the first time;)


12.09.2017 2:18, Rohit Sodhia пишет:
> Ok. Looks like 3.5.20 is the latest on the yum repo I'm using, so
> guess I'll have to learn how to compile it myself; never compiled a
> package before.
>
> On Mon, Sep 11, 2017 at 4:17 PM, Yuri <yvoinov at gmail.com
> <mailto:yvoinov at gmail.com>> wrote:
>
>     Hardly,
>
>     most probably something in repo's package. However, upgrade is
>     always recommended, especially with modern functionality. It
>     changes fast enough.
>
>     12.09.2017 2:15, Rohit Sodhia пишет:
>>     Ah. I'm on 3.5.20; not sure how far back that is. Is that the
>>     core of the problem?
>>
>>     On Mon, Sep 11, 2017 at 4:07 PM, Yuri <yvoinov at gmail.com
>>     <mailto:yvoinov at gmail.com>> wrote:
>>
>>         Seems latest 4.0.21 is good enough. Most critical SSL-related
>>         bugs almost closed or closed.
>>
>>         At least latest 3.5.27 is released. AFAIK this is minimum to
>>         problem-free running.
>>
>>         Repositories software sometimes has strange quirks, or
>>         sometimes rancid.
>>
>>         12.09.2017 2:05, Rohit Sodhia пишет:
>>
>>>         I'll try to find it, but I read a few articles/SO questions
>>>         that suggested there were bugs in 4 relating to SSL bumping?
>>>         If they were wrong, I'd be glad to go forward. Should I be
>>>         removing the yum squid package and compile my own? Is 3.5
>>>         problematic besides being old?
>>>
>>>         On Mon, Sep 11, 2017 at 4:02 PM, Yuri <yvoinov at gmail.com
>>>         <mailto:yvoinov at gmail.com>> wrote:
>>>
>>>             Wait. Squid 3.5.20? So ancient?
>>>
>>>
>>>             12.09.2017 1:58, Rohit Sodhia пишет:
>>>>             sslcrtd_program /usr/lib64/squid/ssl_crtd -s
>>>>             /var/lib/ssl_db -M 4MB
>>>>
>>>>             I used the line from the Stack Overflow question I
>>>>             linked earlier.
>>>>
>>>>             On Mon, Sep 11, 2017 at 3:41 PM, Yuri
>>>>             <yvoinov at gmail.com <mailto:yvoinov at gmail.com>> wrote:
>>>>
>>>>                 Well. Let's check more deep.
>>>>
>>>>                 Show me parameter sslcrtd_program in your squid.conf
>>>>
>>>>
>>>>                 12.09.2017 1:23, Rohit Sodhia пишет:
>>>>>                 Unfortunately, no luck yet. Thank you again for
>>>>>                 your help before.
>>>>>
>>>>>                 I found that the user squid and group squid
>>>>>                 existed already, so I added
>>>>>
>>>>>                 cache_effective_user squid
>>>>>                 cache_effective_group squid
>>>>>
>>>>>                 to my config (first two lines), made sure
>>>>>                 /var/lib/ssl_db and it's contents were set to
>>>>>                 squid:squid and restarted the service, but I'm
>>>>>                 still getting the same error :(
>>>>>
>>>>>                 On Mon, Sep 11, 2017 at 2:42 PM, Rohit Sodhia
>>>>>                 <sodhia.rohit at gmail.com
>>>>>                 <mailto:sodhia.rohit at gmail.com>> wrote:
>>>>>
>>>>>                     I'll try that immediately, thanks! I
>>>>>                     appreciate all your advice; hopefully I won't
>>>>>                     have to reach out again :p
>>>>>
>>>>>                     On Mon, Sep 11, 2017 at 2:39 PM, Yuri
>>>>>                     <yvoinov at gmail.com <mailto:yvoinov at gmail.com>>
>>>>>                     wrote:
>>>>>
>>>>>                         I'm not Linux fanboy, but modern squid
>>>>>                         never runs as root. So, most probably it
>>>>>                         runs as nobody user.
>>>>>
>>>>>                         Ah, yes:
>>>>>
>>>>>                         #  TAG: cache_effective_user
>>>>>                         #    If you start Squid as root, it will
>>>>>                         change its effective/real
>>>>>                         #    UID/GID to the user specified below. 
>>>>>                         The default is to change
>>>>>                         #    to UID of nobody.
>>>>>                         #    see also; cache_effective_group
>>>>>                         #Default:
>>>>>                         # cache_effective_user nobody
>>>>>
>>>>>                         #  TAG: cache_effective_group
>>>>>                         #    Squid sets the GID to the effective
>>>>>                         user's default group ID
>>>>>                         #    (taken from the password file) and
>>>>>                         supplementary group list
>>>>>                         #    from the groups membership.
>>>>>                         #
>>>>>                         #    If you want Squid to run with a
>>>>>                         specific GID regardless of
>>>>>                         #    the group memberships of the
>>>>>                         effective user then set this
>>>>>                         #    to the group (or GID) you want Squid
>>>>>                         to run as. When set
>>>>>                         #    all other group privileges of the
>>>>>                         effective user are ignored
>>>>>                         #    and only this GID is effective. If
>>>>>                         Squid is not started as
>>>>>                         #    root the user starting Squid MUST be
>>>>>                         member of the specified
>>>>>                         #    group.
>>>>>                         #
>>>>>                         #    This option is not recommended by the
>>>>>                         Squid Team.
>>>>>                         #    Our preference is for administrators
>>>>>                         to configure a secure
>>>>>                         #    user account for squid with UID/GID
>>>>>                         matching system policies.
>>>>>                         #Default:
>>>>>                         # Use system group memberships of the
>>>>>                         cache_effective_user account
>>>>>
>>>>>                         As documented. :)
>>>>>
>>>>>                         AFAIK best solution is create
>>>>>                         non-privileged group & user (like
>>>>>                         squid/squid) and set both this parameters
>>>>>                         explicity.
>>>>>
>>>>>                         Then change owner recursively on SSL cache
>>>>>                         to this user.
>>>>>
>>>>>
>>>>>                         12.09.2017 0:36, Rohit Sodhia пишет:
>>>>>>                         Neither of those values are set in my
>>>>>>                         config. Even though I'm not using squid
>>>>>>                         for caching, I need those values? They
>>>>>>                         aren't set in the default configs either.
>>>>>>
>>>>>>                         On Mon, Sep 11, 2017 at 2:33 PM, Yuri
>>>>>>                         <yvoinov at gmail.com
>>>>>>                         <mailto:yvoinov at gmail.com>> wrote:
>>>>>>
>>>>>>                             Most probably you squid runs as
>>>>>>                             another user than squid.
>>>>>>
>>>>>>                             Check your squid.conf for
>>>>>>                             cache_effective_user and
>>>>>>                             cache_effective_group values.
>>>>>>
>>>>>>                             Then change SSL cache permissions to
>>>>>>                             this values. Should work.
>>>>>>
>>>>>>
>>>>>>                             12.09.2017 0:30, Rohit Sodhia пишет:
>>>>>>>                             Thanks for the feedback! I just used
>>>>>>>                             yum (it's a CentOS 7 VB) and it set
>>>>>>>                             it up like that. I changed the owner
>>>>>>>                             and group to squid:squid and tried
>>>>>>>                             restarting squid, but still get the
>>>>>>>                             same errors. I thought to run the
>>>>>>>                             command again, but this time it says
>>>>>>>
>>>>>>>                             /usr/lib64/squid/ssl_crtd: Cannot
>>>>>>>                             create /var/lib/ssl_db
>>>>>>>
>>>>>>>                             If this folder has incorrect
>>>>>>>                             permissions are there possibly other
>>>>>>>                             permission issues?
>>>>>>>
>>>>>>>                             On Mon, Sep 11, 2017 at 2:25 PM,
>>>>>>>                             Yuri <yvoinov at gmail.com
>>>>>>>                             <mailto:yvoinov at gmail.com>> wrote:
>>>>>>>
>>>>>>>                                 Here you root of problem.
>>>>>>>
>>>>>>>                                 Should be (on my setups):
>>>>>>>
>>>>>>>                                 # ls -al /var/lib/ssl_db
>>>>>>>                                 total 326
>>>>>>>                                 drwxr-xr-x 3 squid squid      5
>>>>>>>                                 Sep  5 00:53 .
>>>>>>>                                 drwxr-xr-x 8 root  other      8
>>>>>>>                                 Sep  5 00:53 ..
>>>>>>>                                 drwxr-xr-x 2 squid squid    454
>>>>>>>                                 Sep 11 23:37 certs
>>>>>>>                                 -rw-r--r-- 1 squid squid 280575
>>>>>>>                                 Sep 11 23:37 index.txt
>>>>>>>                                 -rw-r--r-- 1 squid squid      7
>>>>>>>                                 Sep 11 23:37 size
>>>>>>>
>>>>>>>                                 I.e. Squid has no access to SSL
>>>>>>>                                 cache dir structures.
>>>>>>>
>>>>>>>
>>>>>>>                                 12.09.2017 0:23, Rohit Sodhia пишет:
>>>>>>>>                                 total 8
>>>>>>>>                                 drwxr-xr-x.  3 root root   48
>>>>>>>>                                 Sep 11 12:42 .
>>>>>>>>                                 drwxr-xr-x. 32 root root 4096
>>>>>>>>                                 Sep 11 12:42 ..
>>>>>>>>                                 drwxr-xr-x.  2 root root    6
>>>>>>>>                                 Sep 11 12:42 certs
>>>>>>>>                                 -rw-r--r--.  1 root root    0
>>>>>>>>                                 Sep 11 12:42 index.txt
>>>>>>>>                                 -rw-r--r--.  1 root root    1
>>>>>>>>                                 Sep 11 12:42 size
>>>>>>>>
>>>>>>>>
>>>>>>>>                                 On Mon, Sep 11, 2017 at 2:22
>>>>>>>>                                 PM, Yuri <yvoinov at gmail.com
>>>>>>>>                                 <mailto:yvoinov at gmail.com>> wrote:
>>>>>>>>
>>>>>>>>                                     Show output of
>>>>>>>>
>>>>>>>>                                     ls -al /var/lib/ssl_db
>>>>>>>>
>>>>>>>>
>>>>>>>>                                     12.09.2017 0:21, Rohit
>>>>>>>>                                     Sodhia пишет:
>>>>>>>>>                                     Yes, but telling me it's
>>>>>>>>>                                     crashing unfortunately
>>>>>>>>>                                     doesn't help me figure out
>>>>>>>>>                                     why or how to fix it. I've
>>>>>>>>>                                     run the command it
>>>>>>>>>                                     suggests but it doesn't
>>>>>>>>>                                     help. I'm unfortunately
>>>>>>>>>                                     not an ops guy familiar
>>>>>>>>>                                     with this kind of stuff; I
>>>>>>>>>                                     don't see anything on how
>>>>>>>>>                                     to figure out what to do
>>>>>>>>>                                     about it.
>>>>>>>>>
>>>>>>>>>                                     On Mon, Sep 11, 2017 at
>>>>>>>>>                                     2:17 PM, Yuri
>>>>>>>>>                                     <yvoinov at gmail.com
>>>>>>>>>                                     <mailto:yvoinov at gmail.com>>
>>>>>>>>>                                     wrote:
>>>>>>>>>
>>>>>>>>>                                         It tells you what's
>>>>>>>>>                                         happens.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>                                         11.09.2017 23:50,
>>>>>>>>>                                         Rohit Sodhia пишет:
>>>>>>>>>                                         > (ssl_crtd):
>>>>>>>>>                                         Uninitialized SSL
>>>>>>>>>                                         certificate database
>>>>>>>>>                                         directory:
>>>>>>>>>                                         > /var/lib/ssl_db. To
>>>>>>>>>                                         initialize, run
>>>>>>>>>                                         "ssl_crtd -c -s
>>>>>>>>>                                         /var/lib/ssl_db".
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>                                         _______________________________________________
>>>>>>>>>                                         squid-users mailing list
>>>>>>>>>                                         squid-users at lists.squid-cache.org
>>>>>>>>>                                         <mailto:squid-users at lists.squid-cache.org>
>>>>>>>>>                                         http://lists.squid-cache.org/listinfo/squid-users
>>>>>>>>>                                         <http://lists.squid-cache.org/listinfo/squid-users>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>

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