Initial Install hostname Helium

[NetScr1be]

ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether 12:43:c5:ff:57:43 brd ff:ff:ff:ff:ff:ff inet 138.197.169.223/20 brd 138.197.175.255 scope global eth0 valid_lft forever preferred_lft forever inet 10.20.0.5/16 brd 10.20.255.255 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::1043:c5ff:feff:5743/64 scope link valid_lft forever preferred_lft forever

• reset root password - OK
• update

  sudo apt update  
  Get:1 http://mirrors.digitalocean.com/ubuntu focal InRelease [265 kB]  
  Get:2 http://mirrors.digitalocean.com/ubuntu focal-updates InRelease [114 kB]           
  Hit:3 http://security.ubuntu.com/ubuntu focal-security InRelease  
  Get:4 http://mirrors.digitalocean.com/ubuntu focal-backports InRelease [101 kB]  
  Get:5 http://mirrors.digitalocean.com/ubuntu focal-updates/main amd64 Packages [804 kB]  
  Get:6 http://mirrors.digitalocean.com/ubuntu focal-updates/main amd64 c-n-f Metadata [11.7 kB]  
  Get:7 http://mirrors.digitalocean.com/ubuntu focal-updates/universe amd64 Packages [739 kB]  
  Get:8 http://mirrors.digitalocean.com/ubuntu focal-updates/universe amd64 c-n-f Metadata [15.5 kB]  
  Fetched 2049 kB in 1s (2616 kB/s)   
  Reading package lists... Done  
  Building dependency tree   
  Reading state information... Done  
  All packages are up to date.  

• adduser patrick - ok
• setup ssh - ok
• verify firewall

sudo ufw status verbose  
Status: inactive  

patrick@Helium:~$ sudo ufw default deny incoming  
Default incoming policy changed to 'deny'  
(be sure to update your rules accordingly)  

patrick@Helium:~$ sudo ufw default allow outgoing  
Default outgoing policy changed to 'allow'  
(be sure to update your rules accordingly) 

sudo ufw allow ssh  
Skipping adding existing rule  
Skipping adding existing rule (v6)  

patrick@Helium:~$ sudo ufw enable  
Command may disrupt existing ssh connections. Proceed with operation (y|n)? y  
Firewall is active and enabled on system startup  

sudo ufw status verbose  
Status: active  
Logging: on (low)  
Default: deny (incoming), allow (outgoing), disabled (routed)  
New profiles: skip  

To                         Action      From  
--                         ------      ----  
22/tcp                     ALLOW IN    Anywhere  
22/tcp (v6)                ALLOW IN    Anywhere (v6)