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Top Forums UNIX for Beginners Questions & Answers Print Error in Console and both Error & Output in Log file - UNIX Post 303041104 by Neo on Thursday 14th of November 2019 09:34:07 PM
Old 11-14-2019
Dear sarathy_a35,

You have received at least three reminders to use code tags and format your questions so our members can easily read them. You seem to have decided that the forum rules, which you agreed to when you signed up, do not apply to you. If you continue to post without respecting the community rules and guidelines we will have no choice but to change your status to read only.

This is not personal. We apply our rules and guidelines equally to everyone. Most people follow the rules and enjoy formatting their posts so other members can easily read them.

Test Your Knowledge in Computers #585
Difficulty: Easy
Most object oriented programming languages such as C++ and Java are class-based languages.
True or False?

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IPTABLES-APPLY(8)						  iptables 1.6.1						 IPTABLES-APPLY(8)

iptables-apply - a safer way to update iptables remotely SYNOPSIS
iptables-apply [-hV] [-t timeout] [-w savefile] {[rulesfile]|-c [runcmd]} DESCRIPTION
iptables-apply will try to apply a new rulesfile (as output by iptables-save, read by iptables-restore) or run a command to configure iptables and then prompt the user whether the changes are okay. If the new iptables rules cut the existing connection, the user will not be able to answer affirmatively. In this case, the script rolls back to the previous working iptables rules after the timeout expires. Successfully applied rules can also be written to savefile and later used to roll back to this state. This can be used to implement a store last good configuration mechanism when experimenting with an iptables setup script: iptables-apply -w /etc/network/iptables.up.rules -c /etc/network/ When called as ip6tables-apply, the script will use ip6tables-save/-restore and IPv6 default values instead. Default value for rulesfile is '/etc/network/iptables.up.rules'. OPTIONS
-t seconds, --timeout seconds Sets the timeout in seconds after which the script will roll back to the previous ruleset (default: 10). -w savefile, --write savefile Specify the savefile where successfully applied rules will be written to (default if empty string is given: /etc/network/iptables.up.rules). -c runcmd, --command runcmd Run command runcmd to configure iptables instead of applying a rulesfile (default: /etc/network/ -h, --help Display usage information. -V, --version Display version information. SEE ALSO
iptables-restore(8), iptables-save(8), iptables(8). LEGALESE
Original iptables-apply - Copyright 2006 Martin F. Krafft <>. Version 1.1 - Copyright 2010 GW < or>. This manual page was written by Martin F. Krafft <> and extended by GW < or>. Permission is granted to copy, distribute and/or modify this document under the terms of the Artistic License 2.0. iptables 1.6.1 IPTABLES-APPLY(8)

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