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Preparing for a cert exam, searching for precise manuals without errors or figuring out how to deploy a feature or service you`ve never used before? The devil is in details, and we are here to fill the informational gaps and provide every detail you need. Because only knowing the details makes us what we are - a true pro`s

Exchange 2013 How to remove a mailbox from quarantine

In this little tip we are going to learn how to return a mailbox from quarantine in Exchange Server 2013, but the same is valid for Exchange 2016 also.

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Pro DNS and BIND 10

The book contains a complete reference to zone files, resource records, and BIND’s configuration file parameters. You can treat the book as a simple paint-by-numbers guide to everything from a simple caching DNS to the most complex secure DNS (DNSSEC) implementation.

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DNS Theory

To do everything correct, you must know What you are doing. Here is one of the most important pieces of theory for me – DNS Types with explanations.

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CentOS BIND Caching Proxy installation guide

BIND is the most popular DNS-Server in the world.Here is one of the simplest BIND deployments – CentOS BIND caching proxy server under CentOS 7

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CentOS 7 DHCP Full configuration guide

In our CentOS 7 DHCP Full configuration guide we will cover basic and more complicated setup, configure failover and dynamic dns updates with PowerDNS, dig in troubleshooting and monitoring and use some additional utilities

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CentOS 7 PowerDNS installation guide

PowerDNS shows high performance and is distributed under the GPL license. It is the only solution, that stores zones in different backends like MySQL, PostgreSQL, LDAP and others. In addition, the PowerDNS Authoritative Server is the leading DNSSEC implementation.

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Juniper SRX System services – SNMP

It is not always understood what SNMP OIDs or traps should be queried or monitored by SNMP management software or considered normal operation. Here we will describe basic SNMP configuration commands and provide baselines for monitoring SRX devices

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Juniper SRX System services – DNS

Here we gathered all necessary commands for setting up Juniper SRX System services – DNS and it’s features: DNSSEC, DNS-proxy and split-DNS

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Juniper SRX Dynamic VPN Guide

Dynamic VPN is Juniper’s clientless solution for remote access IPSEC VPN. Here you can find full solution for this case plus essential troubleshooting and log gathering information

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GNS ASA 9.15 with ASDM how to‏

GNS3 is a all-known tool for running IOS images. And there are many instructions that guides you through installing GNS ASA 9.15 with ASDM. Here are the solutions to the problems I have faced.

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