fsmithred via Dng writes: > On Sat, 9 Mar 2019 16:27:10 +0100 > Arnt Karlsen <a...@iaksess.no> wrote: > >> On Sat, 9 Mar 2019 14:04:13 +0100, al3xu5 wrote in message >> <20190309130422.386f8f60...@vm6.ganeti.dyne.org>: >> > >> > I wonder... is it a "fixed" id for all Devuan installation as it >> > seems to be? >> >> ..yes and no and no etc, I have: >> nb6:~# hostid #Devuan Jessie >> 007f0101 >> sda3:~# hostid #Devuan Ascii >> 007f0100 >> devuan:~# hostid #Devuan Ascii on rPi-1 >> 007f0100 >> rir:~# hostid #Raspian Jessie >> 00000000 >> devuan@dvn:~$ hostid #Devuan Ascii Live usb >> 00000000 > > I get 007f0100 on one jessie, 007f0101 on another jessie and 007f0101 > on ascii. (Three different computers) > > The ascii install is on a laptop that has several installations. When I > reboot it into jessie, I get 007f0100. Ceres on that same box gives me > 007f0100.
All the info I have seen on this topic in the thread is consistent with hostid returning the "mangled" IP address belonging to the machine's current hostname. This is normally set from /etc/hostname. That file is created during installation. The IP address is in /etc/hosts. Taking 007f0100 as an example, swapping bytes in pairs gives 7f000001 which gives 127.0.0.1. For 007f0101 you get 127.0.1.1. I just tried the following on my machine $ sudo hostname yoda # anything different from what you have now $ hostid # this is silent for a while and then says 00000000 Presumably, DNS times out and then you get whatever the code used to initialize the return value. Trying to revert my change $ sudo hostname quark # this ponders things for a while and says sudo: unable to resolve host yoda $ hostid 007f0101 Please note that the hostname command does *not* modify the contents of /etc/hostname. To persist changes across reboots you'll need to edit /etc/hostname yourself. Hope this helps, -- Olaf Meeuwissen, LPIC-2 FSF Associate Member since 2004-01-27 GnuPG key: F84A2DD9/B3C0 2F47 EA19 64F4 9F13 F43E B8A4 A88A F84A 2DD9 Support Free Software https://my.fsf.org/donate Join the Free Software Foundation https://my.fsf.org/join _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
