Tag Archives: RHEL 7

SSSD-AD TGT failed verification

Users of RHEL 7 and CentOS 7 on Windows Active Directory networks are likely enjoying the benefits of using the SSSD-AD domain-join client module along with the Realmd tool which facilitates proper management of SSSD client configuration (a very complex … Continue reading

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Get Rid of virbr0

In RHEL 7.x and CentOS 7.x you may see an odd extra network interface listed as “virbr0” (virtual bridge zero). This is provided as a default way to share the host physical network with private guest virtual machines. Unfortunately this … Continue reading

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Tomcat Multiple Instances RHEL 7 CentOS 7

This is a follow-on to my earlier posts Apache Tomcat in RHEL 7 and RHEL 7 Administration Notes. This builds on the goal to use the system packaged Tomcat and Java software in order to receive security and bug fix … Continue reading

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VNC on CentOS and RHEL 7

This is a follow-on to my earlier posts “VNC on CentOS and RHEL 6” and “RHEL 7 Administration Notes“. Setup of VNC Server on RHEL 7/CentOS 7 is very similar to that of RHEL 6/CentOS 6. The biggest difference is … Continue reading

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bash Group Specific PATH for RHEL 7.x

Users on a RHEL 7.x / CentOS 7.x system may desire to have all members of a specific group receive an altered $PATH environment variable to run 3rd party programs without modifying the user-specific PATH settings. This can be accomplished … Continue reading

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yum-cron

Red Hat Enterprise Linux 7 (RHEL 7) provides a package for automated updates called yum-cron. Here are some notes on this functionality. NOTE in RHEL 7, the old “vixie-cron” has been replaced by the modern Red Hat fork “cronie” which … Continue reading

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RHEL 7 Minimal Needs net-tools

Update Nov 17, 2016 – some alternatives to the old Linux networking commands are preferred in modern Linux systems (Ubuntu 16.04, RHEL 7.x, CentOS 7.x). ip address show # will show secondary ip addresses in addition to primary for each … Continue reading

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