08-13-2010
OK, for surfing you don't need to open port 80/TCP incoming. The system will choose a random high port (>1024) for communication going
out to the HTTP port, and others. Besides, hardening a system doesn't stop at configuring your firewall.
As for that site: I wouldn't trust them further than I could throw them.
- Their freeware for Windows is just a collection of registry fixes or disabling services (which is easy to do yourself).
- Their main product, Spin Right, was reviewed by an MBA, which doesn't exactly fill me with confidence that he grasped the finer points of data recovery.
- The product description itself makes me doubt they grasped the concept of magnetic storage (in case anyone of them reads this: ever heard of CRC?)
- In their "research" about NAT they claim that NAT adds security to a network because it hides the IPs behind it, which is, excuse my language, BS.
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LEARN ABOUT DEBIAN
iptables-apply
iptables-apply(8) System Manager's Manual iptables-apply(8)
NAME
iptables-apply - a safer way to update iptables remotely
SYNOPSIS
iptables-apply [-hV] [-t timeout] ruleset-file
DESCRIPTION
iptables-apply will try to apply a new ruleset (as output by iptables-save/read by iptables-restore) to iptables, then prompt the user
whether the changes are okay. If the new ruleset cut the existing connection, the user will not be able to answer affirmatively. In this
case, the script rolls back to the previous ruleset after the timeout expired. The timeout can be set with -t.
When called as ip6tables-apply, the script will use ip6tables-save/-restore instead.
OPTIONS
-t seconds, --timeout seconds
Sets the timeout after which the script will roll back to the previous ruleset.
-h, --help
Display usage information.
-V, --version
Display version information.
SEE ALSO
iptables-restore(8), iptables-save(8), iptables(8).
LEGALESE
iptables-apply is copyright by Martin F. Krafft.
This manual page was written by Martin F. Krafft <madduck@madduck.net>
Permission is granted to copy, distribute and/or modify this document under the terms of the Artistic License 2.0.
2006-06-04 iptables-apply(8)