On 02/03/2017 23:31, the...@sys-concept.com wrote: > On 03/02/2017 02:11 PM, Alan McKinnon wrote: >> On 02/03/2017 22:57, the...@sys-concept.com wrote: >>> running "ifconfig" is it possible to display hostname, especially with >>> "tun" interfaces. >> >> No. >> >> ifconfig operates at layer 2. >> Hostnames is a dns/resolver concept operating at a much higher level. >> >> DNs relies on layer 2 so using rDNS to display hostnames (or worse, that >> abomination called /etc/hosts) is logically circular and nonsensical >> >> Hostnames are there to abstract addresses when addresses don't matter. >> Addresses very much do matter at the ifconfig level so if you need them >> then, you probably shouldn't be looking at ifconfig at all (don't you >> know your own addresses?) >> >> And finally the relationship between address and names is many<->many, >> so which one you gonna use? > > Thanks for the input Alan, > Yes, I do remember them when I'm setting it UP; but after a while I have > to think if I get the correct IP or tun address. > > I think "yellow" note sticker on the side of the monitor will do the > trick :-)
Come work for me (you will have to leave Canada and move to Africa), managing a bucket load of /16s will teach you real quick to think in addresses. Can you considered giving your tun interfaces descriptive names? -- Alan McKinnon alan.mckin...@gmail.com
