Step-by-Step Guide to Patching Red Hat Systems in Air-Gapped Environments
If you work on the air gapped systems like I do, here are the steps to follow to download, transfer the updates to the air gapped systems and update. On…
Red Hat: Adding unused disk space to the existing volume group
If you have some unused disk space and want to add to the volume group.No data will be lost on existing volume. root@localhost ~]# df -h Filesystem Size Used Avail…
RED HAT : booting to rescue mode using DVD iso
Normally, I do not carry out major maintenance on Friday. If something goes wrong it will ruin your whole weekend. I've been enabling FIPS on all Red Hat servers to…
RED HAT: Extending Logical Volumes
Had a situation whereby /opt was running out of space. /Tmp had ample of space. Therefore, I decided to reduct /tmp and extend /opt volume. Following are the steps that…
Install CA certificate for application in Red Hat
Create a directory under an app/site in Red Hat server /path/cert Download a root CA certificate and copy to the above folder. Check the certificate expiration openssl x509 -text -noout…