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04Dec

Find all snapshots in VmWare vSphere

Written by Super User. Posted in IT

It's no secret that when you perform backup with Veeam Backup & Replication, sometimes it "forgets" to delete the its snapshots. This leads to the fact that all virtual machine starts to work entirely on snapshot all the time. This is a costly operation, which significantly reduces the performance of the virtual machine.

In addition, system administrators can create snapshot manually and forget about it. We had a case in our company when a virtual server half-year (!!!!!) worked on the snapshot.

Fortunately, VmWare provides a plugin for Powershell, PowerCLI, which you can use to find all these snapshots.

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30Nov

Slow work of Veeam Backup & Replication GUI interface

Written by Super User. Posted in IT

The longer you work with Veeam Backup & Replication, the lower and lower its interface work. Apparently, this is because Veeam stores in database information about all sessions of the interface. Once they become so numerous that queries to the database begin to slow down.

So we need:

  1. Set up Veeam to not to store all this unneeded information.
  2. Delete existing data from database.
  3. Truncate and shrink database.

After performing these steps, my Veeam client started to work much faster.

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26Nov

Deny access to Exchange ECP from Internet with IIS ARR Reverse Proxy

Written by Super User. Posted in IT

Exchange 2010 and 2013 partially managed with Exchange Control Panel (ECP). It's a web-service running on IIS on Client Access Server. There is a problem: when you publish OWA in the Internet, you automatically publish ECP to the Internet too. And this is a security issue.

If you use IIS ARR as Reverse Proxy for publishing Exchange to the Internet, you can create rule that will block access to URLs like https://owa.domain.com/ecp/.

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11Nov

STARTTLS issues in mail server MDaemon on Windows Server 2003

Written by Super User. Posted in IT

Recently MDaemon that installed on Windows Server 2003, ceased to send or receive messages from\to some mail servers. As it turned out, the problem is in the obsolete SSL\TLS protocols on Windows Server 2003.

Symptoms (cut from log):

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03Nov

iSCSI CHAP password in QNAP storages

Written by Super User. Posted in IT

In QNAP storages you cannot change or reset password for iSCSI target using web interface. You can only delete target and create it again. Of course you will lose all data from target.

Fortunately, password stored in plain text in /etc/config/iscsi_trgt.conf file, field CHAPPasswd. There is field for CHAP user also. You can connect to the device using Putty and find password without need to reset the whole target.

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More Articles ...

  • Reset password of local administrator account in Windows 2000 / 2003 / XP / Vista / 2008 / R2 / 2012 / R2 / 8 / 8.1
  • Deleting old files and folders in Powershell
  • Common problems while logging into Lync 2010/2013
  • Autoreply messages (Out of Office) not sent in Exchange 2010/2013
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