On Fri 05 Jul 2019 at 06:15:02 (-0400), Gene Heskett wrote: > On Thursday 04 July 2019 23:38:50 andreimpope...@gmail.com wrote: > > On Jo, 04 iul 19, 03:30:55, Gene Heskett wrote: > > > On Thursday 04 July 2019 02:47:50 Andrei POPESCU wrote: > > > > I seem to recall sudo cares about /etc/hosts. > > > > > > But I have that address TAB hostname.domain.name TAB alias in the > > > hosts file. No errors there. > > > > How about showing us (attaching) the complete file ;) > > Attaching is difficult, I had to remount the machine. But here it is.
> 127.0.0.1 localhost > 192.168.71.1 router.coyote.den router > 192.168.71.3 coyote.coyote.den coyote > 192.168.71.4 shop.coyote.den shop > 192.168.71.5 lathe.coyote.den lathe > 192.168.71.6 lappy.coyote.den lappy > 192.168.71.7 sheldon.coyote.den sheldon > 192.168.71.10 GO704.coyote.den GO704 > 192.168.71.12 picnic.coyote.den picnc > 192.168.71.21 MFC.coyote.den printer scanner > 192.168.71.30 vna.coyote.den vna > ::1 localhost ip6-localhost ip6-loopback > ff02::1 ip6-allnodes > ff02::2 ip6-allrouters > > #127.0.1.1 raspberrypi I'm reluctant to say much about your network configuration since you wrote about having a managed switch as well as your router in your "lashup", and also because I have no idea what you've "nuked". My LAN is entirely static, with a master list of hosts, /root/hosts-1-template, on my laptop, which I distribute to all the others' /root directories and then mangle into place in /etc. I don't try to fight dhcp in the router (which lacks a DNS server), but just put all the hosts' MAC addresses into its Address Reservation list (including things like printers, mobiles, Rokus and TVs). Anything that appears as 192.168.1.200+ is a stranger. I mangle the master list with two lines of bash (which sit in the bash history file): # cat /root/hosts-[0-9]-*[^~] | sed -e "/^[[:space:]]*192.168.1.[0-9]\+[[:spa ce:]]\+$HOSTNAME.corp[[:space:]]\+$HOSTNAME\$/s/[[:space:]]*\([0-9.]\+\)[[:spa ce:]]\+\(.*\)\$/127.0.1.1\t\2\t# \1/" | diff -U1 -bw - /etc/hosts | less which checks any editing done on the master copies /root/hosts-[0-9]-*[^~], and the same line, but ending with: ce:]]\+\(.*\)\$/127.0.1.1\t\2\t# \1/" > /etc/hosts to overwrite the real hosts file after checking. So: 127.0.0.1 localhost 192.168.1.1 router.corp router 192.168.1.10 acer.corp acer gets turned into: 127.0.0.1 localhost 192.168.1.1 router.corp router 127.0.1.1 acer.corp acer # 192.168.1.10 by sed when that line is run on the acer PC. (I've split the line in the middle of "space", obviously, for posting here. I don't have multiple aliases for interfaces like your printer/scanner, nor hostnames that duplicate domain names like your coyote, keeping things simpler. I do have a /root/hosts-2-antihosts file, though, which is why there's that -[0-9]- wildcard.) Cheers, David.
