Knowledge Article on SSH

SSH - How it works : SSH client initiates connection. If it is first time then servers sends host key - verify and say YES OR NO. Once you accept it  - SSH server sends the versions it supports, Encryption ( AES256, 3DES) and Hash techniques ( SHA, MD5 ) it supports. Client should agree … Continue reading Knowledge Article on SSH

More Disk Issues

Q: # df -h showing disk is not full but the processes not able to write files and failing. A: #df -i showed the inodes usage is 100% and in one of the log folders there are so many files so ran out of inodes. Moved the files to a temp folder archived to release … Continue reading More Disk Issues

Interface names – udev persistent rules

udev is a device manager for the Linux kernel. As the successor of devfsd and hotplug, udev primarily manages device nodes in the /dev directory. At the same time, udev also handles all user space events raised while hardware devices are added into the system or removed from it, including firmware loading as required by certain devices.udev replaces the functionality of both hotplug and hwdetect. udev loads kernel modules by … Continue reading Interface names – udev persistent rules