Static hostname vs Transient hostname, and how they effect on operation system

English Network/Internet
1

next link show how change the hostname
https://www.cyberciti.biz/faq/opensuse-linux-change-hostname-computer-name-command/

when i run this command to show current hostname, find two types of host name:

hostnamectl

next results, show there’s no Static hostname:

Static hostname: n/a
           Transient hostname: localhost
           Icon name: computer-laptop
           Chassis: laptop
           Operating System: openSUSE Leap 15.3
           CPE OS Name: cpe:/o:opensuse:leap:15.3
           Kernel: Linux 5.3.18-150300.59.46-default
           Architecture: x86-64

note:
every thing work good and i do not recive any problem during current situation.

hope help me understand next points:

1- did current situation (no static hostname), effect by some how?
2- did i need set hostname, can i also change the Transient hostname?
3- how set them during installation, if they both important?

thanks in advance

2

Hi
I normally do it after install (but also use static ip’s and hostnames in /etc/hosts);


hostnamectl --set-transient <some hostname>

Also look at;

domainname --help

You can set via installation in the ‘networking’ setion prior to install.

3

Phew, I have never made such a fuss about static hostnames. Just edited /etc/hostname with “kdesu kwrite”. Also, I have never bothered about this:

From:
127.0.1.1 localhost
To:
127.0.1.1 ln-sg-vpn1
I don’t know if it is wise to assign a hostname to 127.0.1.1. Here it is “localhost” on all machines. I am using static IP addresses and wicked on all machines except the laptop which I can not access today. On the laptop I am using network manager but still the host is known due to /etc/hosts on all machines. And the Fritz!Box will always assign the same IP address to it. For sure I didn’t mess about 127.0.1.1.

What does

cat /etc/hostname

tell you?
Can you ping that machine using it’s hostname from other boxes?

4

Hi
As long as 127.0.0.1 is localhost or localhost.localdomain, likewise in the past I’ve added 127.0.0.2 to localhost but never needed to. Now if you want to play with a service on 127.0.0.1, then use nip.io or sslip.io to resolve to localhost on the fly;


ping forums.opensuse.org.127.0.0.1.nip.io

PING forums.opensuse.org.127.0.0.1.nip.io (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.049 ms
....

ping forums.opensuse.org.127.0.0.1.sslip.io

PING forums.opensuse.org.127.0.0.1.sslip.io (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.029 ms
....
5

Yes, sure. Sorry! Of course I meant 127.0.0.1!

127.0.0.1    localhost

I have never ever even added 127.0.1.1 to any host list. In a nutshell, I don’t think it is required to do any change to either of both in order to get a static hostname.

6

Note: Situation may change if transient hostname is used. For consistent naming have a static hostname. I ran “hostnamectl hostname i3-4130” after installation: https://forums.opensuse.org/showthread.php/554703-Testing-a-new-distribution-The-same-procedure-as-everytime

**i3-4130:~ #** hostnamectl 
 Static hostname: i3-4130 
       Icon name: computer-desktop 
         Chassis: desktop 
      Machine ID: b650d066970b487eaffea649babf596a 
         Boot ID: 7ce788372f94404fa05944bbda1c80ea 
Operating System: openSUSE Tumbleweed                 
     CPE OS Name: cpe:/o:opensuse:tumbleweed:20220212 
          Kernel: Linux 5.16.8-1-default 
    Architecture: x86-64 
 Hardware Vendor: To Be Filled By O.E.M. 
  Hardware Model: To Be Filled By O.E.M. 
**i3-4130:~ #**

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