Z-Push 2.4.0 - nginx configuration file

  • Kopano

    Hi milauria,

    @milauria said in Z-Push 2.4.0 - nginx configuration file:

    I am interested in the nginx configuration that i am testing. I installed the nginx addition an wondering what does the installer do other than creating the conf file.

    Right now the installer only creates a config file. The adjustments, permissions and nginx reloading have to be done manually. We are working on updating the documentation on this.

    In my past experience i had to change ownership to a few directories that were owned by apache to nginx to make it work. Also the /var/log/z-push is owned by apache and i had to change to nginx or it gives error.

    I’m not sure if it’s the same in CentOS, but e.g. for debian the default nginx user is www-data, the same as apache. You could check /etc/nginx/nginx.conf and what is the value of user directive. Changing it to match apache’s user (which is apache if I remember correctly) should solve at least the ownership issues for you.

    As for the Z-Push nginx configuration file, I will investigate that, but it’ll might take some time as I’m not very familiar with RHEL based systems.

    Thanks for your feedback so far.


  • Hi, in my endeavour to move the z-push installation under nginx and Centos7, I had all working with the exception of the log file rotation

    The email error notification I get says:
    error: stat of /var/log/z-push/autodiscover-error.log failed: Permission denied
    error: stat of /var/log/z-push/autodiscover.log failed: Permission denied
    error: stat of /var/log/z-push/z-push-error.log failed: Permission denied
    error: stat of /var/log/z-push/z-push.log failed: Permission denied

    I have the following permissions set:

    drwxr-x---. 2 nginx  nginx     102 Oct 31 04:56 z-push


    -rw-r--r--. 1 nginx nginx       0 Oct 31 04:56 autodiscover-error.log
    -rw-r--r--. 1 nginx nginx   12224 Oct 31 04:56 autodiscover.log
    -rw-r--r--. 1 nginx nginx  157546 Nov  1 04:57 z-push-error.log
    -rw-r--r--. 1 nginx nginx 2770015 Nov  1 12:36 z-push.log

    I also modified the /etc/logrotate.d/z-push.lr to:

    /var/log/z-push/*.log {
            size 1k
            create nginx nginx
            rotate 4

    I have tried to tweak the permission to every possible value I could think of … but nothing

    Also I have tried to change the destination of the log file in the z-psuh config.php, but z-push stops working for some other problems and put it back to standard, I though it might be the php-fpm permissions but seems all set as user=nginx group=nginx.

    Just as a note the nginx user has been created by nginx installer as a standard user also for its main .conf and I didn’t want to touch it if not necessary.

    Thanks for any advise you might have to fix the log rotation … !

  • @milauria Hosting on Centos here too … Your permissions look ok although I would highly recommend running nginx sites/services under custom assigned/created usernames and groups - better security.

    The issue you are having is with the file /etc/logrotate.d/z-push.lr … you can delete that and replace it with /etc/logrotate.d/z-push with contents:

    /var/log/z-push/*.log {
    	create nginx nginx
    	rotate 4


  • Nada, not working …

    • I tried to put: ‘create nginx nginx’ (was create apache apache)
    • I tried also to put: ‘su nginx nginx

    … but I still get the above permission denied notification from ​​​​​/etc/cron.daily/logrotate

    I also tried to manually test logrotate from root and it rotates the logs correctly:

    logrotate -f  /etc/logrotate.conf

    So there might some some other permissions to fix externally to the script eg in the crontab execution ? I didn’t touch that from the yum install of z-push. All the other logrotation scripts work fine

    I will continue to dig into this problem, any other suggestions is mostly welcome !

  • @milauria said in Z-Push 2.4.0 - nginx configuration file:

    Nada, not working …

    Sounds like you have selinux enabled. If so, you will need to adjust selinux context for /etc/logrotate.d/z-push

  • You are right … to make sure that php-fpm can write its logs, I did:

    semanage fcontext -a -t httpd_sys_rw_content_t /var/log/z-push
    restorecon -v /var/log/z-push

    Then I am still checking if the logrotate needs the var_log_t context for the same directory to be able to read/write for file rotation … and i yes I need to find a way to make both php-fpm and logrotate work with selinux on the same directory … no idea how!

  • Hi to all – to make z-push work with nginx and Centos 7, after each time I update or install z-push (yum install z-push-common z-push-ipc-sharedmemory) I always run a small script to make permissions suitable for nginx:

    chown root:nginx /etc/z-push/* 
    chown -R nginx:nginx /var/lib/z-push 
    chown -R nginx:nginx /var/log/z-push

    To make it work with nginx … I also edited the /etc/logrotate.d/z-push.lr to remove the line

    create apache apache

    Otherwise z-push creates log files owned by apache:apache that cannot be written by nginx and this permission mismatch blocks the syncing

    This is just FYI in case other users are having troubles under nginx … cheers

  • Kopano

    Hi @milauria ,

    which version of z-push are you running? Z-Push 2.4 introduces a nginx config package which should make those steps obsolete https://jira.z-hub.io/browse/ZP-1162

  • Hi for the moment I am sticking with production version 2.3.9. I did not try the 2.4 beta yet … I was waiting to see the final release of 2.4 making sure it works with the backend I need (Zimbra)

    It would be useful to know what the installation exactly does other than creating the .conf described here [https://forum.kopano.io/topic/133/nginx-configuration-file/4](link url).

    My concern is to make sure that all the permissions are set properly (/etc/z-push … /var/lib/z-push … /logrotate.d/z-push.lr … etc)


  • Kopano

    @milauria there are quite some pull requests attached to the ticket I’ve linked you. if you login at jira.z-hub.io then you can see all the changes that have been done.

  • Now that Z-push 2.4 has been released as official … I may suggest that when installing the z-push-config-nginx module the following permissions are also set during installation:

    /var/lib/z-push/* must be owned by nginx : z-push (not apache:z-push)
    /etc/logrotate.d/z-push.lr should remove “create apache apache”

    I am running on Centos 7 with Nginx

  • Kopano

    Hi, thanks for the report. I’ve created an issue for it https://jira.z-hub.io/browse/ZP-1375
    I am not sure why we didn’t see this/create the ticket before, but we will fix asap.

    Cheers, Sebastian

  • Kopano

    @milauria we have fixed ZP-1375 and it’s released in Z-Push 2.4.1 beta1.
    Could you try to install/update to this version and report back? Thank you!

  • With the Z-Push 2.4.1 beta1 installed I see that now the logrotate contains “create root z-push” which also does not work for me.

    I need to be “create nginx z-push” to make let z-push write its log file … or just delete the “create” statement so that it inherits the permission from its folder

    Basically to make it work I need both /var/log/z-push and /var/lib/z-push to be owned by the “nginx” user

  • Kopano

    Hi milauria,

    are there any errors? z-push group does have the right permissions for both folders, doesn’t it?


  • Hi manfred,
    seems to be the file owner the problem, not the file group

    The /var/lib/z-push owner needs to be “nginx”. The z-push install I think defaults the owner as “root” and in that case I get the below fatal error. After I did the “chown nginx” the error went away.

    [FATAL] Exception: (FatalMisconfigurationException) - Not possible to write to the configured state directory.
    [FATAL] FatalMisconfigurationException: Not possible to write to the configured state directory. - code: 0 - file: /usr/share/z-push/lib/default/filestatemachine.php:63

    Similarly /var/log/z-push needs to owned by nginx AND needs to be writable only by the user.
    The error I get: “parent directory has insecure permissions (It’s world writable or writable by group which is not “root”)”
    I also removed altogether the “create” statement in the z-push.lr so that every new log is created with the same folder permission


  • Kopano

    Hi milauria,

    could you post the output of

    groups nginx


    With the current spec file configuration it’s not so trivial to change the ownership to user nginx. That’s why we introduced the z-push group which has the right permissions.


  • groups nginx
    nginx : nginx z-push

    thanks for looking into this

  • Just to report that I have installed 2.4.1 final and all works fine with the only modification needed for the /var/log that I had to change as follow:

    drwxr-x—. 2 nginx z-push 4096 Apr 11 19:21 z-push