From: mh+debian-devel@zugschlus.de 
  
 On Mon, Oct 13, 2025 at 11:56:21PM +0200, Timo R€€hling wrote: 
 >The usual "trick" to get your own domain name is via hostname 
 >canonicalization, i.e, you run gethostbyname("apollo"), which returns 
 >127.0.1.1, and afterwards gethostbyaddr(127.0.1.1), which returns 
 >"apollo.example.com". The 127.0.1.1 entry in /etc/hosts makes this 
 >work and still lets the software on your computer behave exactly as if 
 >your computer had a static IP with a proper DNS entry, regardless of 
 >your actual network setup. 
  
 That would work with 127.0.0.2 as well, right? 
  
 >If you ask me, the roaming client is the more problematic case, as you 
 >need to have a well-defined FQDN to generate the /etc/hosts entry. I 
 >suppose it can be a bit awkward if you want the domain name to be 
 >configured dynamically and the DHCP client has to rewrite /etc/hosts 
 >each time you connect to a network, which is probably why systemd is 
 >exploring alternative resolution mechanisms. 
  
 I agree. I must say that I don't have that problem since my roaming 
 clients connect to a VPN and get a static IPv6 address assigned from 
 there, and that's what I use as the FQDN. 
  
 Greetings 
 Marc 
  
  
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