[Info-vax] SSH/SCP sessions hanging for 7 minutes while reading from "/dev/random"

[sphowes]

On Thursday, September 30, 2021 at 8:56:45 AM UTC-4, Simon Clubley wrote:
> On 2021-09-30, Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP> wrote: 
> > On 2021-09-29, sphowes <spho... at gmail.com> wrote: 
> >> I am hoping someone may be able to help resolve an issue while opening an SSH or SCP session on an OpenVMS 7.3-2 cluster. 
> >> 
> >> When a session is initiated to or from the server, the connection will hang for ~7 minutes before finally opening the connection and asking for a password. 
> >> 
> > 
> > It is not clear to me what is on the other end of the connection in 
> > both these cases. Is it also a VMS system or is it something else ? 
> > 
> > Can you confirm that the output you are seeing about /dev/random is 
> > coming from a SSH client that is running on a VMS system ? 
> >
> For the VMS systems, you also need to state which TCP/IP stack and 
> version you are using and if you are using the SSH client supplied 
> with that stack. 
> 
> If you are, then make sure you have run the required startup command 
> procedure(s) for that stack at startup.
> Simon. 
> 
> -- 
> Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP 
> Walking destinations on a map are further away than they appear.

Yes, we are using the SSH supplied version:

debug: Ssh2/SSH2.C:1847: CRTL version (SYS$SHARE:DECC$SHR.EXE ident) is V7.3-2-03

We are running the TCP startup command procedure at system boot time:
@SYS$STARTUP:TcpIp$STARTUP.COM