Category Archives: Linux & Solaris

Migrate and upgrade Tenable Security Center from RHEL6/CentOS6 to RHEL7/CentOS7

Overview I had Tenable Security Center running on a RHEL6 VM which scans around 1000 hosts several times a week.┬áREHL6 is getting a bit long-in-the-tooth and also there was a need to upgrade to the latest and greatest version of … Continue reading

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How to prevent audit logs appearing in /var/log/messages – RHEL7

Overview For RHEL7. This took more work than I anticipated. My goal was this: Write audit logs to /var/log/audit Forward audit and syslog to central logging server Audit logs to NOT appear in /var/log/messages The items 1 and 2 were … Continue reading

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Adding a custom unit file RHEL7, for swatch

swatch is a Linux tool for watching (it uses ”tail -f”) log files and then demonizes it. I had a need to know when a host needed rebooting after yum-cron had updated the kernel, rather than logging into each host … Continue reading

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Adding vmware-tools to Centos5 or RHEL

Adding vmware-tools to RHEL6 or greater is easy, assuming you have the EPEL repo enabled all you do is: yum install open-vm-tools.x86_64 That’s it your done. Things are a tad more complicated for lower version of RHEL, for example RHEL5, … Continue reading

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Getting Oracle Instant Client, PHP, and oci8 all working

I had one hell of a game getting all of this working together, it didn’t help that the server has been CIS hardened, anyway, here is how I got it working, and one word of advice, everything seems very version … Continue reading

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CentOS6.4 – X11 Forwarding session using SSH fails

From time to time I use X11 forwarding to connect to various web management interfaces on remote servers, I had just done a new install of CenOS6.4 64-bit minimal to try out Backuppc, went to run the webGUI by doing … Continue reading

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Samba troubleshooting tips & tricks

You are having problems getting samba to do your beck and call, and it’s not working as it should, well here a few things to help you diagnose things – it’s assumed you have the basic already configured. First, crank … Continue reading

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