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How to configure an additional BIND instance for a domain already described by other public name servers?

Background I have a small virtual server hosted by my provider and there I have configured a relatively simple combination of postfix, dovecot and roundcubemail (backed by nginx) that works OK. I ...
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vote
1answer
113 views

Percona xtradb cluster with asynch slaves

I have a Percona xtradb cluster set up with 3 nodes. Node 1 is also set up as a master with an asynchronous slave. When I make an update to Node 1, it is replicated to the cluster as well as the ...
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1answer
29 views

Configuring different read and write targets for OpenLDAP

I have a new piece of infrastructure (a simple LDAP web service) that will be a drop-in replacement for something that currently exists in production. The backend OpenLDAP server will not be upgraded ...
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1answer
310 views

DNS Slave doesnot serve new record while master is down until restart

could anyone explain the behaviour of DNS slave. i am testing dns server, for internal purpose, and after configuring master slave everything works fine, but i am willing to understand the mechanism ...
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1answer
203 views

Replicate from slaves to master and viceversa

I've a great dilema here and didn't know how to solve it. I need to replicate a few tables from MySQL DB (slaves) to MySQL DB (master). Take as an example this: MySQL DB (master) table1 table2 ...
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269 views

How to setup geographically different primary/secondary, master/slave DNS services at domain registrar?

This is a followup question to my previous post Multiple free dns services redundant as name servers of a website? I would like to setup DNS services as primary/secondary, master/slave and would like ...
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1answer
487 views

Promote MySQL master-slave to master-master replication

I'll be doing a upgrade of a large MySQL 5.0 database to Percona 5.1 and I'm attempting to keep the actual downtime as short as possible during the upgrade, so the regular mysqldump + mysql import ...
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1answer
134 views

MySQL master-slave replication with more than 1 server

Is it possible to setup replication for database_A from master_A and database_B from master_B server? It looks like I can only set one master-host in MySQL configuration file. Thanks in advance.
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Pacemaker DRBD resource not getting promoted to master on any node

First off, I'm no linux specialist, I've been following tutorials and been working with the help of google, this worked out fine until now, but currently I'm stuck with a problem. I'm using CentOS 6.5 ...
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94 views

MySQL replication - invalidating query cache entries (table)

We lately mved to MySQL V5.5 on CentOS release 6.7 with master and 2 slaves. Since then the replication process lags a lot behind the master with the line in the process list of: invalidating query ...
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169 views

pgpool: ip addresses conflict after master failed

I have two servers with pgpool in master-slave architecture. Virtual IP | | ------------- ------------- ...
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29 views

Bogus DNS apex records on Windows secondary server

We are introducing a DNS BIND 9 master/secondary setup to be authoritative for a zone to replace an existing Windows Server 2008 R2 DNS infrastructure. In the interim, the former Windows AD-integrated ...
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986 views

RockMongo Connection Issue with MongoDB Slave

I have a MongoDB Replication with Master-Slave (not RepliSet) I have configured RockMongo on two servers. But I able to login to master server through rockmongo but when I login to slave with rock ...