It’s easy if your Paloalto firewall has internet access. Upgrade just few click away on GUI.However, when you need to upgrade many firewalls(like 50+) that’s a complicated job. Downloading firmware for 50 device from Paloalto is not feasible and it also consumes lots of internet bandwidth. In this post, I’ll demonstrate how I upgrade many… Continue reading Upgrade Paloalto Firewall in large scale without overwhelm Internet bandwidth
Tag: cli
Run commands on remote server using plink
As an engineer, you might come across some task that need to run commands on remote machine. This post will show you how to use plink to run command on remote machine. PuTTY Link (Plink), a command-line utility for secure remote access. You can find the software here. If you have installed full version of… Continue reading Run commands on remote server using plink
Paloalto firewall ssh authentication with public key
It’s common that administrator login to ssh server with key to avoid typing password all day. This post demonstrates how to config Paloalto firewall to use ssh key authentication. 01. Go to Device>Administrators, select the user name you want to add ssh key authentication. 02. Check “Use Public Key Authentication(SSH)” 03. Import your ssh public… Continue reading Paloalto firewall ssh authentication with public key
Factory Reset Palo Alto Firewall without admin password
This post demonstrate how to perform factory reset if you don’t have admin password. For this to work, you need a console connection to firewall. 01. Reboot firewall by unplug the power cable and then plug it back in. 02. From console output, select “PANOS (main-sysroot1)”. Please noted, this selection only show up around 5… Continue reading Factory Reset Palo Alto Firewall without admin password
Data Wrangling with sed
How to get clean data is important, however Excel or any GUI application might not be able to help us clean the raw data. Moreover, if the data set is large, the application might crush. If you are also using unix system like I did, there are many useful utilities that could help with data… Continue reading Data Wrangling with sed
List all csv file in current directory
I need to list all csv file in a directory and I have to goole how to do it every time I need it. So I’ll write a post to remind myself. Since I only want to list file in current directory not any sub directory. I have to use the maxdepth flag, as find… Continue reading List all csv file in current directory
Factory rest HPE 5510 switch
1. Reload the switch 2. Hit “Ctrl+B” as the switch boot up to enter extended boot menu 3. From the menu select 5(Restore to factory default configuration) 4. If “Password recovery capability is enabled”. you could not perform a factory reset. You will have to disable the function first. 5. Reload the switch and enter… Continue reading Factory rest HPE 5510 switch
Check RDS license grace period
Method 1 Method 2 Method 3
Juniper srx320 clear system alarms
I need to set up some SRX320 for customer and the device’s alert light keeps showing red. Here is how to resolve it. If you have same alarm message. To show what alarm the system is having is simple. In my case, the output is like this. Is’t also simple to resolve, just run the… Continue reading Juniper srx320 clear system alarms
Enable console(UART) on raspberry pi 4b running ubuntu22.04
I recently had some issue on how to enable UART(console) port on a raspberry pi device. This post will help you configure raspberry pi to be accessible by UART(console) on the board. 01. Edit the config.txt under /boot/firmware. Add “enable_uart=1” in the file or edit if the line already exist. 02. Edit cmdline.txt under /boot/firmware.… Continue reading Enable console(UART) on raspberry pi 4b running ubuntu22.04