We are planning to setup a Email server with High Availability for email services so that if SMTP/POP/IMAP goes down on one server, the services switch to second server.
We are planning to use a Linux machines from a hosting provider and will do it using DNS with multiple MX records with round robin.
Now i have couple of queries regarding this setup :-
Is this possible to have a same domain name to bind with 2 IPs i.e xyz.com point to 1.1.1.1 on one server and xyz.com point to 2.2.2.2 on second server.
How can we setup MX records for each server on DNS for email failover.
As we have a separate servers for this setup that means data related to email would be reside on separate server (because they have separate HDD), so in case 1st server goes down and it switch to second server, will i skipped my email which was received on 1st server before it goes down as my email client will receive them on certain period of time.
Hi,
I want to create gfs storage. But getting error as below:
--> Finished Dependency Resolution
Error: Package: pacemaker-1.1.12-22.el7_1.2.x86_64 (rhel-ha-for-rhel-7-server-eus-rpms)
Requires: sbd
You could try using --skip-broken to work around the problem
You could try... (1 Reply)
hi guys
I posted problem last time I didn't find answer to my issue.
my problem is as below:
I have two servers which work as an actif/standby in high availability system.
but when i use command HASTAT -a i have the following message: couldn' find actif node.
the servers are sun... (1 Reply)
Hello Experts,
I have a question about Redhat HA Add-On, how can i setup an Active/Active Cluster using Redhat 5.7 64Bit, with Round-Robin technique.
Each server will run an application and oracle database without RAC.
Thanks (0 Replies)
Hi,
Can someone help and give the answer for the following questions:
1. When PowerHA SystemMirror 7.1 is installed on AIX 7.1, what RSCT component does Cluster Aware AIX (CAA) replace?
A. Group Services
B. Resource Manager
C. Topology Services
D. Resource Monitoring and Control... (2 Replies)
Hi,
I want to set up a iscsi high availability with sheepdog distributed storage.
Here is my system set up. Four nodes with sheepdog distributed storage and i am sharing this storage through iscsi using two nodes as well as using a virtual ip set up using ucarp.Two nodes using same iqn. And... (0 Replies)
Hi folks,
(Sorry I don't know what its technology is termed exactly. High Availability OR load balancing)
What I'm going to explore is as follows:-
For example, on Physical Servers;
Server-1 - LAMP, a working server
Server-2 - LAMP, for redundancy
While Server-1 is working all... (3 Replies)
Hi all
I was just wondering what modes AIX supports for port trunking ( bonding, etherchannel, link aggregation or whatever you want to call it )
I'm in particular looking for a high availability mode ( other than 802.3ad ) (2 Replies)
Email::Send::SMTP(3pm) User Contributed Perl Documentation Email::Send::SMTP(3pm)NAME
Email::Send::SMTP - Send Messages using SMTP
SYNOPSIS
use Email::Send;
my $mailer = Email::Send->new({mailer => 'SMTP'});
$mailer->mailer_args([Host => 'smtp.example.com:465', ssl => 1])
if $USE_SSL;
$mailer->send($message);
DESCRIPTION
This mailer for "Email::Send" uses "Net::SMTP" to send a message with an SMTP server. The first invocation of "send" requires an SMTP
server arguments. Subsequent calls will remember the the first setting until it is reset.
Any arguments passed to "send" will be passed to "Net::SMTP->new()", with some exceptions. "username" and "password", if passed, are used
to invoke "Net::SMTP->auth()" for SASL authentication support. "ssl", if set to true, turns on SSL support by using "Net::SMTP::SSL".
SMTP can fail for a number of reasons. All return values from this package are true or false. If false, sending has failed. If true, send
succeeded. The return values are "Return::Value" objects, however, and contain more information on just what went wrong.
Here is an example of dealing with failure.
my $return = send SMTP => $message, 'localhost';
die "$return" if ! $return;
The stringified version of the return value will have the text of the error. In a conditional, a failure will evaluate to false.
Here's an example of dealing with success. It is the case that some email addresses may not succeed but others will. In this case, the
return value's "bad" property is set to a list of bad addresses.
my $return = send SMTP => $message, 'localhost';
if ( $return ) {
my @bad = @{ $return->prop('bad') };
warn "Failed to send to: " . join ', ', @bad
if @bad;
}
For more information on these return values, see Return::Value.
ENVELOPE GENERATION
The envelope sender and recipients are, by default, generated by looking at the From, To, Cc, and Bcc headers. This behavior can be
modified by replacing the "get_env_sender" and "get_env_recipients" methods, both of which receive the Email::Simple object and their only
parameter, and return email addresses.
SEE ALSO
Email::Send, Net::SMTP, Net::SMTP::SSL, Email::Address, Return::Value, perl.
AUTHOR
Current maintainer: Ricardo SIGNES, <rjbs@cpan.org>.
Original author: Casey West, <casey@geeknest.com>.
COPYRIGHT
Copyright (c) 2004 Casey West. All rights reserved.
This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
perl v5.12.4 2009-07-12 Email::Send::SMTP(3pm)