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Set up MongoDB Authentication for Graylog

Posted on 13/02/2017 by Lisenet

I’ve been running MongoDB without authentication for some time, until recently, it had failed a Lynis security audit. Continue reading →

Posted in Linux, Monitoring | Tagged CentOS, Graylog, Mongo | 6 Comments

Configure Tripwire on CentOS 7

Posted on 19/01/2017 by Lisenet

Open Source Tripwire is a free software security and data integrity tool useful for monitoring and alerting on specific file changes on a range of systems. Open Source Tripwire functions as a host-based intrusion detection system. Continue reading →

Posted in Linux, Monitoring | Tagged CentOS, Tripwire | 2 Comments

Send Squid Logs to Graylog

Posted on 16/01/2017 by Lisenet

Using GELF to send Squid logs to Graylog. Continue reading →

Posted in Linux, Monitoring | Tagged CentOS, Graylog, Squid | 13 Comments

Send Apache Logs to Graylog

Posted on 28/12/2016 by Lisenet

I was looking for an easy way to forward Apache access logs to Graylog, and came across GELF. Continue reading →

Posted in Linux, Monitoring | Tagged Apache2, CentOS, Graylog | 13 Comments

Graylog Server Upgrade from 1.3.x to 2.0.x on CentOS 6

Posted on 12/12/2016 by Lisenet

Upgrading Graylog2 to Graylog (sounds confusing, I know). Continue reading →

Posted in Linux | Tagged CentOS, Elasticsearch, Graylog, Mongo | Leave a comment

Create Local YUM Repository from Systemd Mounted DVD on RHEL 7

Posted on 04/12/2016 by Lisenet

We can mount DVDs/partitions using systemd.mount by writing a mount unit file. Continue reading →

Posted in Linux | Tagged CentOS, EX200, EX300, RHCE, RHCSA, RHEL, systemd | 14 Comments

Dirty COW (CVE-2016-5195): Recompile Linux Kernel 4.2 with the Fix Applied

Posted on 29/10/2016 by Lisenet

Dirty COW (CVE-2016-5195) is a privilege escalation vulnerability in the Linux kernel. Continue reading →

Posted in Linux | Tagged CVE-2016-5195, Debian, Dell Inspiron 5559, Dirty COW, Jessie, kernel 4.2 | Leave a comment

Build and Import Puppet Modules into Katello

Posted on 10/10/2016 by Lisenet

Building Puppet modules for Katello.

Continue reading →

Posted in Linux | Tagged CentOS, EX405, Foreman, Git, Katello, Pulp, Puppet, Red Hat Satellite 6, RHCA | Leave a comment

Set up Wake On LAN (WOL) on CentOS 7

Posted on 08/10/2016 by Lisenet

Setting up Wake on LAN on a CentOS 7 server. Continue reading →

Posted in Linux | Tagged CentOS, ethtool, MagicPacket, WOL | 3 Comments

Install Katello on CentOS 7

Posted on 18/09/2016 by Lisenet

We’re going to install Foreman with Katello on CentOS 7.

Continue reading →

Posted in Linux | Tagged CentOS, EX405, Foreman, homelab, Katello, Pulp, Puppet, Red Hat Satellite 6, RHCA, RHEL | 6 Comments

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