I'm very new to SSH so I have a few questions that will be obvious to many of you. I've been following through the guide at https://en.opensuse.org/SDB:Configure_openSSH which is rather outdated but the basics are still relevant. So until now I've succeeded in connecting between machines on the same network, browsing and copying files remotely, launching YaST in ncurses mode to do remote updates, etc. All fine. I now want to connect to a machine on another network (in another country). I realize that I've probably fallen at the first hurdle, since although I configured some basics on that remote machine, I never added a line to hosts.allow with the address of my computer here at home, and hosts.deny is set to refuse ALL other connections. Presumably, since I therefore currently have no access at all, I'll have to speak to the user of that remote machine and have them log in as root and add the relevant line to the hosts.allow file? Related to that, whilst the remote user's IP address is dynamic and their ISP charges a fee to switch to static, would I get around that by associating their domain name to their connection with reverse DNS? And if so, what are the implications of doing so? Could that result in increased snoops/attacks or wider broadcast of their domain? And then how do I specify which machine at their end, behind their router, my SSH command goes to? Until now I've only been specifying local addresses, e.g. 192.168.0.10. Is this even how it works? I cannot find anything relating to that in any other SSH articles or guides I've googled for, which makes me think the concept is different. Is the machine effectively specified by the port number I assign, meaning I should assign different port numbers for every device? I'd have thought that was one of the fundamental things anybody wants to do with SSH yet none of the many SSH pages I've pulled up explains anything about this. Cheers. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org