August 2000
Intermediate to advanced
816 pages
29h 45m
English
book
Linux in a Nutshell, Third Edition
by Ellen Siever, Stephen Spainhour, Jessica P. Hekman, Stephen Figgins
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Name
tcpdchk
Synopsis
tcpdchk [options]
Description
TCP/IP command. Consult the TCP wrapper configuration (in /etc/hosts.allow and /etc/hosts.deny); display a list of all possible problems with it; attempt to suggest possible fixes.
Options
- -a
Include a list of rules; do not require an ALLOW keyword before allowing sites to access the local host.
- -d
Consult ./hosts.allow and ./hosts.deny instead of /etc/hosts.allow and /etc/hosts.deny.
- -i conf-file
Specify location of inetd.conf or tlid.conf file. These are files that tcpdchk automatically uses in its evaluation of TCP wrapper files.
- -v
Verbose mode.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.