Posted inComputer Security How tos Linux
Setup your own self signed Certificate Authority (CA)
How to be your own Certificate Authority(CA) with self signed certificates This is a hands on tutorial on…
Server refused to allocate pty
Server refused to allocate pty : pseudoterminal in use reached maximum allowed limit. You are unlikely to encounter…
Posted inComputer Security How tos Linux
AIDE installation and setup
AIDE (Advanced Intrusion Detection Environment) setup AIDE is a host-based file and directory integrity checking tool, similar to…
Posted inHow tos Linux Miscellaneous
Linux – run a scheduled job once
Linux - run a scheduled command once When we think of running scheduled tasks in Linux, the first…
Posted inContainers How tos Linux
Ansible non standard ssh port
How to run playbooks against a host running ssh on a port other than port 22. Ansible is…
VMware – add scsi virtual disk on a running Linux VM without rebooting
How to add a disk to a running VM This tutorial will show you how to make Vmware…
Restore original files from RPM package
How to get the original file from an RPM. You might have accidentally deleted a configuration or binary…
tcpdump – capture output in real time
tcpdump - how to grep or save output in real time Tcpdump is a handy tool for capturing…
Redhat satellite / Spacewalk – automatically patch clients
Redhat satellite or Spacewalk - real time push to clients. By default, a client waits for a set…
Logical volume management – shrink an LVM
Reduce or shrink the size of non root LVM mount. In a system with limited disk size, you…