How To Modify Hostname Inward Kali Linux?

Kali Linux is becoming pop as well as to a greater extent than as well as to a greater extent than users are using it to endeavour out unlike things. When installing kali, you lot larn to guide a hostname, but inwards illustration you lot accepted the default hostname (kali) as well as afterward desire to alter it, here’s a How to guide to alter hostname inwards Kali Linux.

Now merely changing hostname to something else mightiness non survive enough. How well-nigh nosotros alter hostname every fourth dimension you lot boot your figurer to a random one? That could survive fun. It every bit good helps to avoid suspicion from System Admins inwards your network to come across “kali” inwards their network. Like BackTrack, SysAdmins doesn’t similar Kali much (I hateful why would they? Kali is designed to poke as well as prod unopen to the network to respect vulnerability). Even if you’re using Kali every bit your primary OS, it merely raises eyebrows as well as you lot mightiness larn a catch from an over-conscious SysAdmin. So nosotros volition hash out all possible ways, alter hostname to something else permanently as well as alter hostname randomly inwards each boot.

Change hostname permanently as well as larn into gummy – alongside reboot

Change hostname permanently as well as larn into gummy – without rebooting

Change hostname randomly inwards each boot time.

Change hostname permanently – alongside reboot

As always, I’ve divided the options into multiple dot points.

Step 1: edit hostname file

Open hostname file from /etc directory as well as modify the advert inwards there.

leafpad /etc/hostname

Let’s order nosotros alter the advert from kali to aiur

Save the file.

Step 2: edit hosts file

Open hosts file from /etc directory as well as modify the advert inwards there.

leafpad /etc/hosts

Change kali to aiur.

Save the file.

Step 3: reboot

Now reboot to reverberate your changes

reboot

And you lot should come across the novel hostname coming upward inwards final (i.e. root@aiur)

Change hostname permanently – without reboot

Don’t desire to reboot? Here’s how

Follow footstep 1 as well as 2 from above

i.e.

Update /etc/hostname

Update /etc/hosts, as well as hence local address (es) resolves alongside the novel arrangement name.

Reload configuration files

Type inwards next iii commands i at a time.

service hostname.sh start
service networking force-reload
service network-manager force-reload

Now force-reload networking service.

This volition temporarily disconnect your arrangement from the network (ssh unremarkably resists curt disconnection)

This mightiness definitively disconnect your arrangement from the network because networking mightiness non restore connections; delight reboot, which is non lazy, but ensures that your setup is actually correct

So nosotros necessitate to reload network-manager service every bit well.

This should reconnect networking again.

Depending on what other services you’re running, i.e. avahi, metasploit, postgresql, cups, openSSH server, ssmtp etc. you lot mightiness own got to restart them all.

Now you lot must unopen your existing terminals to own got the novel hostname coming upward at the top. See next screenshot alongside highlighting.

First screenshot is after re-loading all the required services. Note that it’s yet showing root@kali inwards the top. uname -a or hostname shows right information though.

If I unopen this final as well as opened upward a novel one, root@kali becomes root@aiur which is what nosotros want.

Change hostname randomly inwards each boot time

Following physical care for volition allow you lot to alter your hostname randomly inwards each boot. That hostname volition stick until you lot reboot again.

Create a bash script

Create a script which volition automate the procedure

In this final practice a file.

touch newhostname
leafpad newhostname

Now, add together the next lines to your newly created file:

#!/bin/bash
cp -n /etc/hosts{,.old}
idomainname=$(domainname -i)
fdomainname=$(domainname -f)
newhn=$(cat /dev/urandom | tr -dc 'A-Z' | caput -c8)
echo $newhn > /etc/hostname
mv /etc/hosts /etc/hosts.old
echo "127.0.0.1 localhost" > /etc/hosts
echo "$idomainname  $fdomainname    $newhn" >> /etc/hosts
echo "# The next lines are desirable for IPv6 capable hosts" >> /etc/hosts
echo "::1     localhost ip6-localhost ip6-loopback" >> /etc/hosts
echo "ff02::1 ip6-allnodes" >> /etc/hosts
echo "ff02::2 ip6-allrouters" >> /etc/hosts
service hostname.sh stop
sleep 1
service hostname.sh start
service networking stop
sleep 1
service networking start
service network-manager stop
sleep 1
service network-manager start
xhost +$newhn
exit

Save it as well as boot the bucket leafpad.

Note: I’ve used solely CAPS hither for novel hostname, 'A-Z'. You tin dismiss every bit good guide a mixure of working capital missive of the alphabet as well as lowercase ('A-Za-z') or numbers etc.

Also I’ve chosen 8 characters long hostname head -c8, you lot tin dismiss alter it to whatsoever length you lot like.

Move script to /usr/bin/ folder

We necessitate to motion this file to /usr/bin.

mv newhostname /usr/bin/newhostname

Make it executable

Use the next ascendency to brand newhostname file executable.

chmod +x /usr/bin/newhostname

Make it run at Startup:

Now that nosotros own got the script inwards right house as well as it’s executable, nosotros necessitate to add together it your Startup applications. This volition allow your arrangement to run it every fourth dimension you lot reboot your machine as well as generate a novel hostname for you.

Follow the steps below: