Yeri Tiete

#Firewall

3 posts tagged Firewall

Allow ping from USG

· linux, networking, software

Because I keep forgetting and it takes me far too much time to go through one of my million sites where I set this up and find the right config...

To allow a USG (Unifi Security Gateway) to reply to external (WAN) ping requests, do the following:

  • Head to the Unifi dashboard -> Settings -> Firewall & Security
  • Create a new rule
  • Type: Internet Local
  • Description: Allow Ping (Echo Request)
  • Rule Applied: Before Predefined Rules
  • Action: Accept
  • IPv4 Protocol: ICMP
  • IPv4 IMP Type Name: Echo Request
  • Apply Changes -> wait ~2 minutes

That's it...

Shell(s) for my Great Firewall Checker

· linux, networking, software, www

As my last shell has been disconnected in China (not because I was probing websites, but because the building the Guruplug was in got closed) I’m looking for shells. Linux or Unix. With Git installed. I’ll barely use any disk space and it will probe the websites at most once/day (at night, when you won’t notice it).

And not just China, but any country where they tend to censor certain websites.

Great Firewall checker

· linux, networking, software, www

An attempt to create a list of major blocked sites in China (or any other country/ISP). It’s written entirely in Bash.

Github repo riiiiiiight here. It’s used by my PAC-generator.

The Github page is updated once a day by three hosts. One in Belgium, one in The Netherlands, and a Guruplug in China. This way you can compare the results (in case some are down or replying slowly).

As it’s impossible to test every possible site, I just check popular sites (and a bunch of sites from Alexa). But if you know blocked sites not in the list, please submit them – thanks!