Login via SSH is slow
Most of us have, at some time, experienced slow logins when connecting to a server via ssh. If you poke around you’ll discover that there are plenty of recommendations for addressing the issue. For...
Tagged: linux
Disabling the crash kernel (and kdump) in CentOS/RHEL 6
Had a system where the user wanted to disable the crash kernel after a previous admin had enabled it. I found a ton of write-ups showing how to enable and configure kdump, but few...
Installing phpsysinfo on CentOS 7
Quick run-down of what I did to install phpsysinfo on a CentOS 7 box for a client Install httpd, php, php-xml Edit /etc/php.ini safe_mode=Off Download phpsysinfo Unzip tarball Place unzipped folder in /var/www/html/ Browse...
VMware API error: “Customization of the guest operating system ‘rhel6_64Guest’ is not supported in this configuration”
While using VMware’s API and pyVmomi to clone templates into a VM, a couple of times I have run into this error: Cannot deploy template: Customization of the guest operating system ‘rhel6_64Guest’ is not...
How to setup EPEL repos on CentOS
If you’re wanting packages from the EPEL repos that are available to RHEL installations, it’s a simple thing to get them. You can start at the main Fedora repository for EPEL, and work your...
The time I tried compiling an RPM for syslog-ng
Introduction Had a client for whom I wanted to install syslog-ng. I’ve never worked with it before, but had read that it can log to a MySQL database. The project at hand seemed like...
Moving a Postfix virtual user’s mail to a new address
A user was on too many spam lists and wanted a new mailbox. He had removed all the spam, and wanted all the existing messages moved over. The hosting server runs Postfix in a...