Ross Wheeler написав(ла):
I overcame these conflicting requirements with a 2-step process. They
"authorised" user first browsed to a website which asked their
username and password. When entered correctly, it opened a hole in the
firewall to allow that IP to their network. A timer ran every 15
minutes to close the hole (but was over-ridden by the web page which
kept refreshing every 10 mins). The last part may not be necessary for
you, but this may be a possible workaround for your traveling access.
Leave a default of deny any except from trusted, fixed hosts, and add
transient access as required.
This approach (or port-knocking of some sort) is good, but I'm not that
worried about the sshd itself -- and the /detected/ attacks against it.
It is the /undetected/ attacks against other services (such as apache),
that worry me, and locking-out a rogue IP-address /completely/ is what
I'd like to do. So your method would not work for me -- reaching the
web-page (to allow myself a way back in) will be just as impossible as
reaching the ssh-port... Thanks. Yours,
-mi
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