[Info-vax] TCPIP tying up system

[Phillip Helbig---undress to reply]

In article <jcfas7-2jg.ln1 at Ubuntu.mike-r.com>, Henry Crun
<mike at rechtman.com> writes: 

> If it was SSH, and on the assumption that you are using HP TCP/IP Services for 
> OpenVMS, edit SYS$SYSDEVICE:[TCPIP$SSH.SSH2]SSHD2_CONFIG. [*} and start locking 
> down your system.

As much as I hate files with TABs, OK, bite the bullet.

> 1) set  MaxConnections to a lower (single-digit) value

Presumably commented-out values are the default values?

> 2) set LoginGraceTime to less than one minute
> 3) set AllowHosts to whatever hosts you want to allow in
> 4) set AllowUsers to a *few non-privileged users*
> 
> I'm sure there are lots more, but start with those.

OK, thanks.

> OTOH for SMTP:
> edit SYS$SPECIFIC:[TCPIP$SMTP]SMTP.CONFIG; [*]
> and add the line:
> RBLs: zen.spamhaus.org

Had it there for years.