Thanks Neale and Rick.... I have IUCV working on my sandbox linux servers, and I like it a lot. I was wondering how many people used it vs. logging in from a pcomm session.
Thanks, Terri Glowaniak Mainframe Systems Engineer [email protected] (205) 261-6883 (W) -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Neale Ferguson Sent: Wednesday, May 30, 2018 5:39 PM To: [email protected] Subject: Re: about AF_IUCV [External Content] Please use caution. In the ClefOS EPEL repository is an IUCV device driver that provides open/close/read/write/ioctl semantics. It supports most of the IUCV options like send/reply, one way sends etc. -------- Original message -------- From: Rick Troth <[email protected]> Date: 5/30/18 17:00 (GMT-05:00) To: [email protected] Subject: [LINUX-390] about AF_IUCV Going back ... I didn't follow this: On 05/17/2018 08:03 AM, Paul Flint wrote, citing me: >> *IUCV* is best, if you have an IUCV terminal server running. You can >> SSH into the terminal server, hop to the ailing Linux guests via >> IUCV, and "everything is normal". (Well ... except that you're in >> single-user maint mode.) We really should make more use of IUCV in >> all ways, terminal server, things layered on that, and non-terminal >> traffic. It's awesome! > > While I have in my time incanted with IUCV I must petition the Troth > that this potent VM Magic (VMM) may not be the best for an initiate. > A wizard of your standing can hold power over the wild IUCV, transfer > files, edit minidisk content, run DDT (whose name will be spoken > here), or invoke new CMS, but I plea, this is a dangerous path! On both Linux (all platforms) and CMS, IUCV is available as an address family (not functional apart from z/VM) in the sockets interface. AF_IUCV is right there alongside AF_INET, AF_INET6, AF_UNIX (AF_LOCAL), and the rest. What I don't follow is why you say "this is a dangerous path". (Or maybe I misunderstood.) Dangerous? It's actually *less* dangerous than the networked address families because it's guaranteed to be local, as is AF_UNIX (AF_LOCAL). Have no fear! It's easy to use and as safe assocket() can be. The "IUCV console" support in the kernel is based on the same thing. At one time I wrote some code to connect to a Linux console from CMS and vice versa. Fun! -- R; <>< ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
