Enable ZIP Extension for PHP

How to Enable ZIP Extension for PHP on Linux – Ubuntu – ZIP.SO – PHP.INI – Efront – XAMPP/LAMPP Download XAMMP from: http://www.apachefriends.org/en/xampp-linux.html That contains Apache 2.4.3, MySQL 5.5.27, and PHP 5.4.7. Follow instructions on the site (All it takes is just download and unzip into /opt/lampp. It’s pre-compiled). For Apache, you might want to […]

AnyConnect not able to establish a connection to the specified secure gateway

AnyConnect was not able to establish a connection to the specified secure gateway – Cisco VPN Linux / RedHat and RHEL / Ubuntu, Debian: Scenario: When using the Linux Cisco AnyConnect client x64 (like MAC, Ubuntu, Redhat RHEL and Debian) you might get the error above or if you connect through command like you might […]

Downgrading Windows 8 to Windows 7 Freezes and hangs

Downgrading Windows 8 to Windows 7 Freezes and hangs – How to install Windows 7: Scenario: I had a brand new HP ProBook 4440s Laptop that came preloaded with Windows 8. Customer wanted to downgrade it to Windows 7 x64 but during the very initial steps of the Windows 7 installation, the Windows installation screen […]

The directory service is missing mandatory configuration

The operation failed because: Active Directory Domain Services could not transfer the remaining data in directory partition DC=ForestDnsZones,DC=domain-name,DC=com to Active Directory Domain Controller \\DC.domain-name.com. “The directory service is missing mandatory configuration information, and is unable to determine the ownership of floating single-master operation roles.” Scenario: When trying to demote one of Windows 2008 Domain Controllers, […]

BurFlags – D4

Reinitializing/Forcing File Replication Service FRS using Registry key BurFlags D4: Have you been in the situation where you’re unable to replicate AD changes made across 2003 Domain Controllers? I have been there several times, and the last time was when I was attempting to transfer the Global Catalog role for an Exchange Server migration, however […]

Cisco ASA rommon – Error 15: File not found unable to boot an image

Cisco ASA rommon – Error 15: File not found unable to boot an image: The above error could be occurring on startup because the ASA didn’t have a boot file image, loaded with the wrong boot image or configured to boot from unavailable source. It might also be a hardware issue with the ASA like […]

Windows server 2008 crashes at startup – c00002e2

STOP: c00002e2 Directory Services could not start because of the following error: a device attached to the system is not functioning. Applies to: Windows Server 2008, Windows Server 2008 R2 with Exchange 2007 installed on single node. You might face this issue while you are running your daily work, first you will panic and think […]

Recover Deleted Items Outlook 2010

Recover Deleted Items is not available/missing – Outlook 2010 – Exchange and Office 365 Scenario: When you right-click on Deleted Items in Outlook 2010, you don’t see an option to Recover Deleted Items (the way it used to be with Office 2003/2007). Resolutions: To get to “Recover Deleted Items”, please click on the Folder tab […]

Windows Updates Fail – Error 80070216

Windows 7 – Windows Update keeps failing with Error 80070216 Scenario: When trying to install Windows updates on a Windows 7, it keeps failing with the error above. Resolutions: Machine is infected with a rootkit or a virus. Download and run Kaspersky TDSSKiller, then download and run Combofix (you can google them). These two tools […]

Anyconnect Memory Locks up and Cert8

AnyConnect Locks up on Linux before it finally connects because of high memory usage that could go up to 100%. Machine would need to be rebooted to recover. Kubuntu, Ubuntu and Linux. Scenario: When using the Linux Cisco AnyConnect client x64 (like Kubuntu), memory usage gradually starts going up until it’s all used up. Anyconnect […]

Cisco RV082 NAT Example

Cisco RV082 One To One NAT – Access Rules Example Example: Public IP Address: Private IP Address: In this example we will NAT to and open up TCP Port 23 (Telnet) to the inside host from outside. – Login to the Cisco RV 082 through the browser – On the left […]

Backup Exec fails to backup Exchange server with VSS error

Windows Server 2008 R2 – Backup Exec 2010 / 12.5 – AOFO: Initialization failure on: “\\SERVER01\Microsoft Information Store\Information Store”. Advanced Open File Option used: Microsoft Volume Shadow Copy Service (VSS). V-79-10000-11226 – VSS Snapshot error. The Microsoft Volume Shadow Copy Service (VSS) snapshot provider selected returned: “Unexpected provider error”. Ensure that all provider services are […]

Cisco AnyConnect VPN Client, Debian 5.0.3 and Firefox

After you connect to VPN using Cisco Anyconnect on Debian 5.0.3, you are able to ping, traceroute and browse the Internet using Google Chrome but Mozilla Firefox, FTP, Dig, Telnet and Thunderbird won’t work Resolution: I had to troubleshoot this issue for a customer. During that I ran Wireshark, tcpdump and Microsoft Network Monitor traces […]