Joe <[email protected]> wrote: > On Sun, 5 Jul 2026 20:19:12 +0100 > Chris Green <[email protected]> wrote: > > > This isn't a problem as such but I don't understand why it's happening > > and I'd like to understand. > > > > I have a VPS called isbd.biz and I access it using ssh. My user > > account on both my local machine (desktop and laptop) is 'chris' and > > my user account on isbd.biz is also 'chris'. > > > > I have account 'chris' on isbd.biz set up to allow login only using > > public key authentication. > > > > The ip address of isbd.biz is 213.171.194.64. > > > > If I log in with 'ssh 213.171.194.64' I, correctly, get prompted for > > my local system's public key passphrase and I can log in successfully. > > > > However if I try 'ssh isbd.biz' I get prompted for "[email protected]'s > > password" which doesn't exist and I can't log in. > > > > 'host isbd.biz' returns the correct IP address for isbd.biz so why > > does ssh not work using the name rather than the IP address? > > > > Could the issue be that technically isbd.biz is a domain name and not a > hostname? That ssh is trying to log you into a network account rather > than a particular computer, and is using the only name it knows you by? > It's a single host at that address/domain. As I said it's a VPS and the isbd.biz domain is mine and has A and AAAA records pointing solely at the VPS.
As pointed out elsewhere the issue is caused by isbd.biz having an IPV6 address as well as an IPV4 one. -- Chris Green ยท
