Install snort on Kali

Table of contents

Backup kali’s sources.list

mv /etc/apt/sources.list /etc/apt/sources.list.bak

Remove updates

find /var/lib/apt/lists -type f -exec rm {} \;

Change sources.list content

sudo nano /etc/apt/sources.list

Paste content given below

deb http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse<br>
deb-src http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse<br>

deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse<br>
deb-src http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse<br>

deb http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse<br>
deb-src http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse<br>

deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse<br>
deb-src http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse<br>

deb http://archive.canonical.com/ubuntu focal partner<br>
deb-src http://archive.canonical.com/ubuntu focal partner<br>

If you are using kali as a virtual machine then paste this instead As core Ubuntu repositories do not have the ARM repositories in them

deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports focal main restricted universe multiverse<br>
deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports focal-updates main restricted universe multiverse<br>
deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports focal-security main restricted universe multiverse<br>

deb [arch=i386,amd64] http://us.archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse<br>
deb [arch=i386,amd64] http://us.archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse<br>
deb [arch=i386,amd64] http://security.ubuntu.com/ubuntu focal-security main restricted universe multiverse<br>

Add the specified public keys

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 871920D1991BC93C

Update

sudo apt update

Now install snort

sudo apt install snort