28Mar 2019 by Ceyhun Kirmizitas No Comments
How to Enable Local or Remote Tech Support Mode TSM from the Direct Console User Interface (DCUI) on ESXi 4.1

How to Enable Local or Remote Tech Support Mode TSM from the Direct Console User Interface (DCUI) on ESXi 4.1

VMware
The Tech Support Mode or TSM is a sort of simple version of the system console that was available on the classic versions of ESX. Except that the TSM mode is not Linux based and does not have all the capabilities. But you can now access Tech Support Mode locally or via SSH if you follow the instructions below to enable them. To enable local or remote TSM from the Direct Console User  Interface (DCUI): At the DCUI of the ESXi host, press F2 and provide credentials when prompted. Scroll to Troubleshooting Options, and press  Enter. If you want to enable local TSM, select Local Tech  Support and press Enter once. This allows users to login on the  virtual console of the ESXi host.If you want to enable remote  TSM,…
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27Mar 2019 by Ceyhun Kirmizitas No Comments
How to Uninstall Windows Internal Database

How to Uninstall Windows Internal Database

Microsoft
It is not usually necessary to uninstall Windows Internal Database, but sometimes you may need to uninstall or remove Windows Internal Database. It is not possible to remove this application with Add or Remove Programs, and it will not be uninstalled. Because multiple applications and services use the same instance of Windows Internal Database, removing these applications and services does not remove the data store. Important: Uninstalling Windows Internal Database is not recommended, because it may affect other applications that may be using the same database instance. To uninstall Windows Internal Database Open a command shell. On 32-bit platforms: msiexec /x {CEB5780F-1A70-44A9-850F-DE6C4F6AA8FB} callerid=ocsetup.exe On 64-bit platforms: msiexec /x {BDD79957-5801-4A2D-B09E-852E7FA64D01} callerid=ocsetup.exe
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27Mar 2019 by Ceyhun Kirmizitas No Comments

Installing Exchange Update Rollups on DAG (Database Availability Group) Members

Exchange Server
Installing update rollups on DAG members is a straight forward task. We have to make sure that all the active databases have been moved to a different DAG member, activation of all databases on the server to be patched is blocked, mailbox database copy is suspended etc. Basically, the procedure is straightforward and should be followed per DAG member: 1.Appoint (next) DAG member; 2.Move away all active copies on that DAG member; 3.Prevent copies from activating on that DAG member; 4.Perform maintenance, e.g. down or upgrade DAG member; 5.Enable possible activation on that DAG member again; 6.Optionally redistribute database copies. Microsoft has two new scripts in the ?C:\Program Files\Microsoft\Exchange Server\v14\Scripts? folder of Exchange 2010 SP1. StartDAGServerMaintenance.ps1 and StopDAGServerMaintenance.ps1. In order to install a rollup on 2010 SP1 , follow the…
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26Mar 2019 by Ceyhun Kirmizitas No Comments

Envy: A Fast and Easy Way to Install Video Drivers for Ubuntu

Linux
If you have an advanced Video Card, you can sometimes have trouble installing the drivers. A fast and easy way to install your Video drivers is to use a program called Envy. Envy can help you with your initial installation, and any time you have to reinstall because of a Kernel update. 1- Open your favorite terminal 2- type in sudo apt-get install envyng-gtk 3- Launch EnvyNG's GUI by selecting it in the "Applications/System Tools" menu.
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26Mar 2019 by Ceyhun Kirmizitas No Comments
Managing SWAP Partitions – RHEL 6.x – CentOS 6.x

Managing SWAP Partitions – RHEL 6.x – CentOS 6.x

Red Hat - CentOS - Fedora, Video Tutorials
If the system needs more memory resources and the RAM is full, inactive pages in memory are moved to the swap space. Swap space is a portion of a hard disk drive (HDD) that is used for virtual memory. It can be whole disk partition or just a file inside an existing partition or a combination of swap partitions and swap files. We will see how to manage SWAP Partitions on RHEL 6.x or CentOS 6.x Steps: 1. Show current SWAP allocation free -m swapon -s 2. Create additional SWAP space from new partition Reboot is required at this step 3. Make swap mkswap /dev/sdb2 UUID=8bced662-e967-4861-9bac-6df8957b3eb5 4. Update /etc/fstab UUID=8bced662-e967-4861-9bac-6df8957b3eb5 swap swap defaults 0 0 5. Re-reads /etc/fstab for swap swapon -a 6. Show swap usage summary by device swapon -s free…
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25Mar 2019 by Ceyhun Kirmizitas No Comments

How to Configure Manual Failover – Activation – for DAG Member Exchange Server 2010

Exchange Server
Configure Manuel Failover for Entire Mailbox Server Let?s say you want to disable entire DAG member node from being considered in the Automatic Activation Process. In other words, you want to configure manual failover for DAG member. You can use the following command to prevent any databases on a specific mailbox server in DAG from being considered in the Automatic Activation (automatic failover) Process: Set-MailboxServer -Identity MailboxServerName -DatabaseCopyAutoActivationPolicy Blocked To allow database copies to be activated again, I would replace ?Blocked? with ?Unrestricted?: Set-MailboxServer -Identity MailboxServerName -DatabaseCopyAutoActivationPolicy Unrestricted  
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25Mar 2019 by Ceyhun Kirmizitas No Comments
How to Configure Local Continuous Replication (LCR) in Exchange Server 2007

How to Configure Local Continuous Replication (LCR) in Exchange Server 2007

Exchange Server
Local Continuous Replication (LCR) is a single server solution that provides high availability for Exchange Server 2007. Once you enable a local replica of a storage group, LCR copies any changes to the storage group to the replica. This process is called Log Shipping. In this how-to, you will learn how to configure Local Continuous Replication (LCR) in Exchange Server 2007 Mailbox Server Role. Log on to Exchange Server 2007. Click Start, and then point to All Programs, then Microsoft Exchange and click Exchange Management Console. Expand Microsoft Exchange and click the Server Configuration in the Console Tree. Click the server name that has mailbox server role in the results pane. And in the action page, click Manage Mailbox Role. In the work pane, right click  First Sorage Group and click…
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24Mar 2019 by Ceyhun Kirmizitas No Comments
How to Change Command Prompt CMD Default Startup Directory

How to Change Command Prompt CMD Default Startup Directory

Microsoft
The default Command Prompt (CMD.exe) directory is usually your Documents and Settings \ Username directory. Most of the time you navigate away from it because you need to access files that cannot be accessed from there. If you wish to change the default startup directory for Command Prompt, use the steps listed below To change the default Command Prompt directory: 1- Click Start, Run and type Regedit.exe 2- Navigate to the path HKEY_CURRENT_USER \ Software \ Microsoft \ Command Processor 3- In the right-pane, double-click Autorun and set the startup folder path, for example by " CD /d C:\ " without quotes. If Autorun value is missing, you need to create one, of type REG_SZ (String Value) in the above location. Example1: To set the startup directory to C:\Windows, set the Autorun…
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24Mar 2019 by Ceyhun Kirmizitas No Comments
Install and Configure Secondary (Slave) BIND DNS Server – RHEL 6 – CentOS 6

Install and Configure Secondary (Slave) BIND DNS Server – RHEL 6 – CentOS 6

Red Hat - CentOS - Fedora, Video Tutorials
After we have installed BIND as a master DNS server (centos01) (as explained in my recent video), we can now set up a secondary DNS server (centos02) with BIND on CentOS. centos02 acts as a backup if there are problems with centos01. This tutorial will show you how to setup and configure Secondary (Slave) BIND DNS Server on RHEL 6.x or CentOS 6.x Note: centos01.linuxlab.local is Primary (Master) DNS server for linuxlab.local domain We'll make centos02.linuxlab.local ( 192.168.0.22) as secondary dns server for linuxlab.local domain Steps: 1. Define centos02 as Name Server in the primary zone 2. Install bind on other server 3. Configure /etc/named.conf on centos02 (secondary dns server) 4. Allow zone transfer to only our secondary dns server in primary dns server allow-transfer { 192.168.0.22; }; 5. start…
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