Home network file sharing – Samba on Ubuntu 20.04 There are plenty of old PCs lying around my house, and I have been running out of disk space on my phone and my work PC.I needed to create a quick solution to upload all my files plus my family’s. At this point, I am not… Read More Home network file sharing – Samba on Ubuntu 20.04
Example sentence: We are producting zettabytes of data each year. “According to TechAmerica, who aims demystify big data, 1.8 zettabytes of information is created globally and expected to double each year” Unit Approx. Bytes Actual Bytes Approx. Bits Typical file/media Bit B 1 or 0 Nibble 4 … Read More Storage Units – refresher for Data Analytics
You can modify this file or use the nmcli commands to configure the network interface details.
Check the disk utilization df –h # Check file system [jdoe@localhost ~]$ su – #login as the root user Password: [root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 466M 0 466M 0% /dev tmpfs 487M 0 487M 0% /dev/shm tmpfs 195M 1000K 194M 1% /run /dev/mapper/fedora_fedora-root 15G 2.0G 14G 13% /… Read More Linux System and Network Troubleshooting Tips
I knew tmux is an excellent terminal app but just could not find the time to learn about this tool. Today, I have just spent 20 minutes to teach myself on how to use this tool and my terminal experience became ten times the fun. # This is a tmux quick start guide. # Check… Read More Linux/MacOS – tmux quick-start guide
Linux security harending recommendations from LernLinuxTV by Jay. Thanks for sharing real production-driven, valuable and commonly forgotten but easy to forget security tips while administrating the infrastructures. These tips are expandable to other areas of IT infrastructure/cloud management. 1. Adjust your mindset – What is feasible and not feasible? – Complete bulletproof vs. how much… Read More Linux Server Security Hardening – 10 tips
https://www.amazon.com/Introduction-Python-Network-Automation-Journey/dp/1484268059?ref_=d6k_applink_bb_marketplace Apress returned the pre-printing copy of the actual book for the final review. The Production Editor at Apress did an excellent job at editing and picking up errors. I’ve completed the proof-reading and returned the book. At this time in time, the official book release date is on the 18th of May, 2021. This… Read More Introduction to Python Network Automation: The First Journey, Release date: 18 May, 2021, ISBN: 9781484268056, Amazon.com: Books
1. Check the files under /etc/netplan bchoi@u20sn1:~$ ls /etc/netplan/00-installer-config.yaml bchoi@u20sn1:~$ cat /etc/netplan/00-installer-config.yaml Optionally, if you plan to go back to the DHCP configuration, make a backup of the original file and keep it as a backup. bchoi@u20sn1:~$ cp /etc/netplan/00-installer-config.yaml /etc/netplan/00-installer-config.yaml.backup 2. Reconfigure the file as below: bchoi@u20sn1:~$ cat /etc/netplan/00-installer-config.yaml We are configuring the primary and… Read More Ubuntu (Debian/Pop!OS) – How to configure static IP using Netplan
1. Check status of NetworkManager [bchoi@f33sn1 ~]$ nmcli general statusSTATE CONNECTIVITY WIFI-HW WIFI WWAN-HW WWANconnected full enabled enabled enabled enabled 2. Check the connection status [bchoi@f33sn1 ~]$ nmcli -t -f STATE generalconnected 3. Check UUID and Device name (I have two connected interfaces here, one for primary, one for management) [bchoi@f33sn1 ~]$ nmcli con show… Read More Fedora(/CentOS/Red Hat) – How to configure network using NetworkManager (nmcli) commands
This is an IOS upload run using Ansible’s net_put method via SCP. On your Ansible Controller, you must install scp using “pip3 install scp” On the switches/routers, enable “ip scp server enable”. The file location jdoe@u20ws:~$ lsansible_test Desktop Documents Downloads Music Pictures Public Templates Videosjdoe@u20ws:~$ cd ansible_testjdoe@u20ws:~/ansible_test$ cd filesjdoe@u20ws:~/ansible_test/files$ pwd/home/jdoe/ansible_test/filesjdoe@u20ws:~/ansible_test/files$ lscat9k_lite_iosxe.16.12.05.SPA.bin The required files The… Read More Ansible Playbook – Upload new IOS to Cisco 9200/9300/9400 Switches using net_put method via SCP
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