Philip, I second Rick's mention of IUCV and a central terminal server for consideration. I've set it up and it is very easy, especially if you have SLES. It's easy to get working with my Ubuntu, RH and SLES guests. However (you knew there would be one), I use this as a backdoor for admins, not for general users (since I'm not sure how many IUCV connections and associated terminals (/dev/hvc) I really want to manage for each Linux guest. How many simultaneous connections do you realistically need for this group of people (irrespective of the number people that could login)?
Thanks, Sam -----Original Message----- From: Linux on 390 Port <[email protected]> On Behalf Of Rick Troth Sent: Tuesday, December 2, 2025 21:20 To: [email protected] Subject: Re: Console access for s390x linux There are some "terminal server" options. I have never used such, but I HAVE used, and been very pleased with 'iucvconn', which is standard with mainframe Linux. You can set-up a central Linux guest to act as a "jump server" such that your SAs connect to that (e.g., using SSH from their laptops) and then use 'iucvconn' to work on the various other guests. The other guests can run a daemon to handle incoming traffic. BUT you can also get the kernel to talk the same protocol, no daemon needed. Now ... this does not help the SAs manage pre-IPL guests. The guest can be in a really bad state, but at least needs the kernel. (Stuff like "single user" mode.) IBM cooked up a clean and simple protocol, layered on IUCV (which is secure and robust). You can even cobble-up a listener to run on CMS. Not saying I've ever done such a thing. If I had, would I admit it? *:-)* -- R; <>< On 12/2/25 10:08 PM, Philip Tully wrote: > Cross-posted to VM and linux lists > > My team is looking for a solution to provide non-3270 console access to linux > guests running under zVM. > > We need to provide console access to groups of SA's, taking over support. > > We will of course need to ensure it meets our compliance requirements, so any > suggestions would be appreciated. > > Regards > Phil Tully > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, send > email [email protected] with the message: INFO LINUX-390 or > visit > http://www2/. > marist.edu%2Fhtbin%2Fwlvindex%3FLINUX-390&data=05%7C02%7CSam.Cohen%40L > RS.COM%7C7d674b08750d4be6d24008de321aff71%7C62af9ccc42164ae2a1d306614c > 59c315%7C0%7C0%7C639003288760118299%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU > 1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldU > IjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=wV4DySQu5icDoaLYeuGlVg8HEgTmOoW0coRmBQ > lixhQ%3D&reserved=0 -- -- R; <>< ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www2.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www2.marist.edu/htbin/wlvindex?LINUX-390
