02-07-2009
10 More Discussions You Might Find Interesting
1. AIX
Hi all
I need command to give logical and physical IP Address for my machine.
thank you (1 Reply)
Discussion started by: magasem
1 Replies
2. AIX
I added a static route through smit using:
Communications applications and Services ==>
TCIP/IP ==>
Further Configuration ==>
Static Routes ==>
Add a Static Route ==>
Route Type of host
Filled in Destination Address, Default Gateway Address and Network Interface of en0.
This... (2 Replies)
Discussion started by: jyoung
2 Replies
3. UNIX for Dummies Questions & Answers
Hi there,
I have a Debian 5.0 server newly installed.
By default, the ip address is given by dhcp.
pegase:~# grep '^' /etc/network/interfaces
auto lo
iface lo inet loopback
allow-hotplug eth0
iface eth0 inet dhcp
pegase:~# head -2 /etc/hosts
127.0.0.1 localhost
127.0.1.1 ... (1 Reply)
Discussion started by: chebarbudo
1 Replies
4. Solaris
Hello friend, I am new in UNIX, but I want to learn a lot
Well I have a problem to try to configure my PC with a static IP Address
(IP 192.168.1.39, Mask 255.255.255.0, gateway 192.168.1.1)
(DNS 200.48.225.130 and 200.48.225.146).
where are the file that I must be change?
The SO is Sun Solaris... (15 Replies)
Discussion started by: andresguillen
15 Replies
5. UNIX for Dummies Questions & Answers
Hi guys,
I got one problem which I definetily no idea.
What would the physical address be for virtual address?
1) 2ABC
2) 3F4B
Here is the page table:see attached
Thank you sos sososososso much!! (0 Replies)
Discussion started by: lemon_06
0 Replies
6. Red Hat
Hi All,
Could you please explain the purpose of assigning the static IP by using the DHCP Concept. Like by using the clients MAC address we assign the static IP Address. Waiting for your reply. Thanks in Advance. (6 Replies)
Discussion started by: Sharath Kumar
6 Replies
7. SCO
Hi,
Just a question of thought. Why one needs to add static routes on Unix servers ? If I had ethernet card, it already has the settings for gateway for incoming and outgoing requests. We donot have to explicitly set the route it should take. Then what is the use... (3 Replies)
Discussion started by: dextergenious
3 Replies
8. Red Hat
Hi All,
Is there a quick way to check whether the current routes on my centos are
persistent or not before rebooting ?
i can take a route -n output but i may completely lost access to my server if the routes are gone.
thanks. (1 Reply)
Discussion started by: coolatt
1 Replies
9. IP Networking
Hi all,
I would need to register a random free subdomain address and associate that to my IP Address. Any suggestion of a good service?
Also I don't have a static IP but i remember that there are services that automatically reset the right IP address behind the subdomain but i don't remember... (1 Reply)
Discussion started by: Tameto
1 Replies
10. Red Hat
I have three systems A,B,C. I want to configure A in such a way that all packets from A to C goes via B.
I tried:
1. ip route add 'ip of C' via 'ip of B'
2. route add -net 'net address' netmask gw 'ip of B'
These commands work initially when I try a ping or traceroute and expire after... (2 Replies)
Discussion started by: kanak
2 Replies
LEARN ABOUT DEBIAN
universal::require
UNIVERSAL::require(3pm) User Contributed Perl Documentation UNIVERSAL::require(3pm)
NAME
UNIVERSAL::require - require() modules from a variable
SYNOPSIS
# This only needs to be said once in your program.
require UNIVERSAL::require;
# Same as "require Some::Module"
my $module = 'Some::Module';
$module->require or die $@;
# Same as "use Some::Module"
BEGIN { $module->use or die $@ }
DESCRIPTION
If you've ever had to do this...
eval "require $module";
to get around the bareword caveats on require(), this module is for you. It creates a universal require() class method that will work with
every Perl module and its secure. So instead of doing some arcane eval() work, you can do this:
$module->require;
It doesn't save you much typing, but it'll make alot more sense to someone who's not a ninth level Perl acolyte.
Methods
require
my $return_val = $module->require or die $@;
my $return_val = $module->require($version) or die $@;
This works exactly like Perl's require, except without the bareword restriction, and it doesn't die. Since require() is placed in the
UNIVERSAL namespace, it will work on any module. You just have to use UNIVERSAL::require somewhere in your code.
Should the module require fail, or not be a high enough $version, it will simply return false and not die. The error will be in $@ as well
as $UNIVERSAL::require::ERROR.
$module->require or die $@;
use
my $require_return = $module->use or die $@;
my $require_return = $module->use(@imports) or die $@;
Like "UNIVERSAL::require", this allows you to "use" a $module without having to eval to work around the bareword requirement. It returns
the same as require.
Should either the require or the import fail it will return false. The error will be in $@.
If possible, call this inside a BEGIN block to emulate a normal "use" as closely as possible.
BEGIN { $module->use }
SECURITY NOTES
UNIVERSAL::require makes use of "eval STRING". In previous versions of UNIVERSAL::require it was discovered that one could craft a class
name which would result in code being executed. This hole has been closed. The only variables now exposed to "eval STRING" are the
caller's package, filename and line which are not tainted.
UNIVERSAL::require is taint clean.
COPYRIGHT
Copyright 2001, 2005 by Michael G Schwern <schwern@pobox.com>.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
See http://www.perl.com/perl/misc/Artistic.html
AUTHOR
Michael G Schwern <schwern@pobox.com>
SEE ALSO
Module::Load, "require" in perlfunc, <http://dev.perl.org/rfc/253.pod>
perl v5.10.0 2009-03-30 UNIVERSAL::require(3pm)