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: unix
Cockpit on Ubuntu
See your server in a web browser, system stats, logs, applications, updates and much more and perform system tasks with a mouse. It’s easy to start containers, administer storage, configure networks, and...
Rancid – Installation
Installation script – this script is not quite finish yet, but it works. you will need to edit list of groups, there are some lines that needs to be edited before running...
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...
IPTables – Logging/syslog
IPTables if you want to log all traffic, simply place these rules at the first on in each chain. all log messages will be stored in syslog iptables -A INPUT -j LOG...
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...