Cisco IOS RSA Key
Generate a SSH Key on Linux default location for the private and public key is: ~/.ssh/ for the next step, SSH needs to be configured and working on the Cisco IOS Router...
Tag: Linux
.Local domain on Ubuntu (FIX)
The real issue is that since Ubuntu 18.04 the resolv.conf is sym-linked to a stub file that points to the localhost for name resolution. Localhost DNS name resolution means that the system...
Enable More than 4 Serial Ports Linux/Unix
The easy way to fix this is (as root) to edit /etc/default/grub and append ” 8250.nr_uarts=8″ (without quotes) to the end of the line “GRUB_CMDLINE_LINUX_DEFAULT=” You can set any number up to...
Format and Mount new drive Ubuntu 18.04
Find Disk in this case I added a new 5GB drive to this virtual machine. /dev/sdc find disk with fdisk -l Format Disk mkfs -t ext4 /dev/sdc Create Folder and Mount Drive...
Shell (Bash – Bin/bash – /bin/sh), history, up arrow, and tab not working
login shell is /bin/sh for username. On Ubuntu, this is a shell intended for scripting, it doesn’t have any comfortable command line edition feature such as history. To get a proper command line...
Installation of Netdata
Installation open a web browser and navigate to http://SERVERIP:19999 here are some example screenshots, there are only a few graph here and in the real interface there are many more under each...
Installation of Cacti on ubuntu 18.04
Installation Installation of Cacti on ubuntu 18.04 with apt-get could’t be more easy apt-get install snmp snmpd snmp-mibs-downloader rrdtool cacti cacti-spine you should get a few prompts in the installation process Choose...
Random Password from cli/shell
Shuf using shuf should work in most unix/linux distributions without any installations Example (20 characters password) shuf -zer -n20 {a..z} {A..Z} {0..9} ; echo ” URandom using /dev/urandom together with tr to...