NSA Security-Enhanced Linux (SELinux) is an implementation of a flexible mandatory access control architecture in the Linux operating system.

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nginx suddenly redirecting everything to 403 page, can this be debugged or traced?

I'm not sure what happened to my nginx install. Suddenly all page requests are being redirected to the 403 page. Yesterday I tried to add a user agent to block, restarted service from that point ...
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95 views

LDAP user authentication on CentOS 7: Permission denied

I configured LDAP on CentOs 7 and now I'm trying to configure external user authentication. Browsing I found this: https://www.centos.org/docs/5/html/Deployment_Guide-en-US/s1-ldap-pam.html that is ...
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14 views

selinux-policy update prevents ssh into ec2. Now what?

I created a new EC2 instance using the official CentOS 7 (x86_64) HVM image. I ran: yum upgrade At: Running transaction Warning: RPMDB altered outside of yum. Updating : ...
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1answer
16 views

selinux, file not matching file_contexts.local

semanage fcontext -a -t puppet_etc_t "/etc/puppet/environments(/.*)?" cat /etc/selinux/targeted/contexts/files/file_contexts.local # This file is auto-generated by libsemanage # Do not edit ...
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32 views

Get Nagios check_raid.pl script working with SELinux?

I am using the check_raid.pl script with Nagios over SNMP to keep tabs on the RAID in various of our servers (all CentOS 6.x). It works great, except when SELinux is enforcing. A lot of these machines ...
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1answer
26 views

selinux settings for script run by apache to pull git repo

I have a web server running apache under CentOS which as selinux enabled. I have a separate server which has gitlab running. I'm trying to create a workflow using gitlab's web hooks so that when code ...
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32 views

SElinux sandbox fails to start from systemd service

I have a server that runs user submitted code, for evaluation. I wrote a systemd service that starts a python application, that application then run the submitted code using SElinux sandbox. The ...
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1answer
81 views

SELinux: no audit errors but nginx permission errors

I try to isolate a SELinux problem with nging/munin. I see that error message in "/var/log/nging/error.log": [crit] 8802#0: *55 connect() to unix:/var/run/munin/fcgi-html.sock failed (13: ...
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28 views

Postgres on OpenSuse doesn't start after update

I tried to upgrade OpenSuse from 12.1 to 13.1 and after 'zypper update' and reboot Postgresql doesn't start. Here is the output of service postgresgl status: postgresql.service - LSB: Start the ...
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2answers
68 views

How can I move /var/log/audit/audit.log to another partition

Fresh centos 6.5 with updates installed. We want to log auditd to a non persistent volume since we capture everything with splunk or logstash. The destination dir is /mnt/ephemeral/audit/ # ls -l ...
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46 views

SE Linux - can't change SELinux booleans with sudo

I think this is the correct place to put this, rather than in StackOverflow Either way, we have a CentOS 6.6 server. SElinux isn't allowing us to enable httpd_can_sendmail I've tried this.... sudo ...
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24 views

SELinux - centos 6.5 run_init asks for password of non privileged user

I log onto my aws centos instance, as user: [user@aws-sonar-01 ~]$ sudo -i [root@aws-sonar-01 ~]# run_init /bin/bash -x -c 'ulimit -S -c 0 ; auditd'; echo $? Authenticating user. Password: + ulimit ...
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1answer
34 views

httpd trying to access root-owned session files

While looking into what's been causing a server to lock up/crash, I found many selinux messages in /var/log/messages. For example: setroubleshoot: SELinux is preventing /usr/sbin/httpd from getattr ...
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2answers
113 views

SELinux interfering with Apache / PHP [duplicate]

On my installation of CentOS 7, SELinux is enabled by default. This is preventing Apache from properly reading PHP files in the standard /var/www/html document root (the browser is blank when ...
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1answer
175 views

Centos 7 with SElinux: openvpn and DNS

I'm trying to use openvpn as client on centos 7. It works fine, but i cannot get DNS from server. As you know, there is no resolvconf in new Centos, so, standard update-resolv-conf script doesn't ...
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2answers
528 views

Centos: rsyslog blocks sshd and also local login if selinux is active

I have a very curious problem on an centos 6.5(now 6.6) machine. After an update between june 11th and october 21th the trouble begins (packages: http://pastebin.com/gXvaycLL). After a restart in ...
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79 views

Nconf can't generate & deploy Nagios configuration (SELinux)

this is my 1st post here. I'm having trouble with getting NConf (Nagios configuration tool) work with Nagios under CentOS 6.5 (64bit) with SELinux enabled. NConf wasn't able to generate & deploy ...
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59 views

Possible to prevent access to /tmp for a specific user via SELinux?

I'm sort of learning the edges of SELinux and I'm wondering if it's possible to prevent a specific user from accessing /tmp. Clearly it's a bad idea to dork all permissions, so I'm hoping that ...
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1answer
2k views

Centos 7 and OpenVPN: how make them friends?

I'm trying to install OpenVPN server on Centos 7 and faced with next problem: [root@msk ~]# /etc/init.d/openvpn start Starting openvpn (via systemctl): [ OK ] [root@msk ~]# ...
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1answer
147 views

Varnish 4 service won't start because of selinux

I've installed varnish 4 on my new centos 6.5 box. I've activated EPEL repo to install varnish from http://repo.varnish-cache.org/redhat/varnish-4.0/ After installing and configuring my default.vcl I ...
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1answer
351 views

how should I configure selinux when running nginx inside docker

There's a good article in docker's documentation about security with docker : https://docs.docker.com/articles/security/ However, it's not very clear to me how root-priviledged processes in the ...
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1answer
229 views

Apache can't connect to remote MySQL, but mysql command line from same server can

Symptoms: I am running CentOS 6. I can connect to the remote MySQL from the command line: mysql -h a.b.c.d -u user -p -D db. Laravel artisan commands run on the local command line can also connect: ...
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32 views

auditd auid changes after su

I try to implement individual accountability for my RHEL systems using selinux and the audit.log. I followed the instructions given here: Log all commands run by admins on production servers If I ...
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1answer
87 views

Configuration for Ubuntu SELinux with sshd

I am trying to set-up SELinux in an Ubuntu Trusty server, who is an Amazon EC2 instance. I followed the Debian documentation about installing SELinux. The installation work well as seen by : ...
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88 views

SELinux: cannot confine Firefox process to mozilla_t domain

My goal is to execute Firefox in the mozilla_t domain instead of unconfined_t. The machine runs Fedora 20 with SELinux in enforcing mode. Unfortunately, I can't seem to get this right. No matter ...
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136 views

Sharing Collectd data with Apache on CentOS (SELinux)

My CentOS 7 VPS has SELinux enabled and is monitored by Collectd. It uses rrdtool to log the reported data. Pommi released a great solution that made me able to review all data on a webpage called CGP ...
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1answer
128 views

SELinux preventing Apache from writing to a file

SELinux is preventing the apache user from writing to a log file which it owns. When I do setenforce 0 it works. Otherwise it shows this error IOError: [Errno 13] Permission denied: ...
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1answer
576 views

svn: Can't open file '/var/www/svn/repo/db/txn-current-lock': Permission denied

On Fedora os, I have problem to access SVN Repo and commit via HTTP. Here is my config file /etc/httpd/conf.d/subversion.conf LoadModule dav_svn_module modules/mod_dav_svn.so LoadModule ...
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1answer
131 views

Audit says nothing to do, yet puppet won't run with SELinux enforcing

I'm determined to get my puppet master running with SELinux set to enforcing. If I make it permissive, it runs fine. I'm on RHEL 7, with systemd, apache2, passenger 4, and puppet 3. I've gone ...
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1answer
75 views

SELinux problems running Expect script from fail2ban

I have an Expect script that works fine if I run it manually, but fails when run as an action from Fail2ban. The error message is as follows: spawn /usr/bin/telnet 192.168.242.1 The system has no ...
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1answer
488 views

New Dovecot install not allowing login, giving permissions error despite saying that permissions “appear ok”

I'm installing dovecot onto a Virtualbox VM running Ubuntu Server 64-bit 14.04 guest. Dovecot itself is being installed into a Docker container (I'm not sure that that's relevant here, but am noting ...
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1answer
500 views

SELinux blocking sudo from zabbix_agentd

I have a custom user parameter for Zabbix that calls a hardware RAID CLI tool (arcconf / megacli) and checks if any arrays are degraded. Since these tools are root-only, I have configured sudoers to ...
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1answer
367 views

Unable to re-enable SELinux

Up until now we have disabled SELinux as our Standard Operating Procedure -- before you tell me off, I know. That's why we're enabling it now we've got time to. Our normal procedure was to: Set ...
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1answer
53 views

Difference between target policy 18 and 24 in SELinux

I recently started to learning SELinux and I am so new on that. So I've faced an issue and I have question, I use CentOS 6.5 and I am learning SElinux via video training. Into the video training ...
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40 views

Setting up muli-project web development server

I'm trying to set up a development server that will be used for several (web) projects by different teams (consisting of different people, some of which may be involved with more than one project). I ...
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14 views

SELinux module for a specific file rather than an entire context

I've created an SELinux module that works great for a specific context. What I would like to know is, is it possible to restrict this module to only function for specific files with that context? For ...
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1answer
117 views

SELinux for RHEL not persistant after reboot

So in the Red Hat exam they want you to use SELinux. If for example you install vsftp, then do setsebool -P ftp_home_dir=1 or setsebool -P ftp_home_dir on to allow the users on the server to access ...
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1answer
412 views

How do I fix this dovecot SELinux error in audit.log on CentOS?

I'm getting these SELinux errors in /var/log/audit/audit.log for dovecot. type=USER_AUTH msg=audit(1404794536.249:100679): user pid=28375 uid=0 auid=0 ses=2700 ...
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1answer
71 views

Why don't my domain transitions don't occur when the application binary is outside of the stardard binary directories?

I'm trying to set up a custom SELinux policy, but I'm having trouble getting the domain transitions to occur when the application binary is outside of the standard binary directories such as /bin, ...
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2answers
106 views

CentOS Selinux config enforcing but unable to start

I recently discovered selinux is disabled, but config file saying selinux enforcing mode setted. I read about possibilities about why selinux is disabled. I am suspecting on kernel. But I can't find ...
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1answer
1k views

Why does Fedora 20 still deny access to home directories after enabling SELinux httpd_read_user_content and setting files to httpd_user_content_t?

On my Fedora 20, I've learned that to allow write access to files by processes like PHP via Apache, the process owner, which is in my case apache, must have write permissions to the files. Also, since ...
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1answer
430 views

httpd (WordPress) gets avc denied write (SELinux)

I'm getting following message in my /var/log/audit/audit.log: type=AVC msg=audit(1402615093.053:68): avc: denied { write } for pid=799 comm="httpd" name="php" dev="xvda1" ino=8667365 ...
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1answer
498 views

How do I allow apache to rotate logs in user home directory with SELinux enabled?

Our development machine has multiple users, and their various sites are stored in /home/username/apache. In these folders are sub-folders like conf containing the virtual host config, logs containing ...
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1answer
213 views

How to configure SELinux to allow apache to run git

I have a CentOS 6 server and I'm trying to get the apache web server to run git pull in a directory. The php file is simply: <?php shellexec('cd /var/www/vhosts/domain;git pull'); However, ...
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2answers
90 views

Is it possible to persist selinux port statements across reboots?

Currently we need to run something like this every time we start up: /usr/sbin/semanage port -a -t memcache_port_t -p tcp ${special-snowflake-port} It would be great if we could persist this across ...
3
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1answer
834 views

SElinux label for php-fpm sockets

I'm attempting to set up multiple instances of php-fpm to run multiple versions of php through apache 2.2 running on centos 6.5. At some point in the future this will end up in a shared hosting ...
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1answer
21 views

Disabling network access for a group of users but allowing smtp only

We have an environment where our users ssh into the system and their shell is set to simply launch Mutt on their $HOME/Maildir. We want to restrict our users to only be able to send/receive mail. We ...
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1answer
243 views

Zabbix & SNMPTT.log file access denied

I'm having a problem with a file accesed by ZAbbix to proccess all the SNMP trap data using a file /var/log/snmptt/snmptt.log. ZAbbix_proxy.log 23323:20140430:105246.532 sleeping for 5 seconds ...
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1answer
392 views

Enable selinux to allow mysql files to be read and written on a nfs share

I have moved my /var/lib/mysql directory to an nfs share, updated all the config files and created symbolic links where appropriate. This works when I have selinux turned off, but mysqld fails to ...
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28 views

SELinux, complains constantly about rm files in /tmp/

SELinux on my server is constantly flooded by messages like this: Apr 16 00:27:05 mail setroubleshoot: SELinux is preventing the rm from using potentially mislabeled files (/tmp/.font-unix). For ...