Cisco Any Connect VPN installation failed : Rolling Back Windows. There is a problem with the windows installer package....

Many of us might have noticed the below error message while installing Cisco Any Connect VPN on Windows computers.

Error Message: There is a problem with the windows installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor.

 Reason: There could be an issue with Signature Verification of the Package.

Below is the screenshot of the error message, post this error the installation status will be " Rolling Back" and the installation gets failed.

When you contact your system admins, they might say there could be an issue with the Operating System files.

Of course, we have to do basic checks on Anti Virus software which may block such installation.

After doing a little bit of research we had found the actual issue. To overcome this issue, follow the below procedures:

*    On your Windows computer go to Advanced Boot Options by pressing F8 (or based on the manufacturer) while rebooting the computer.

*     For the older version of Windows the Advanced Boot Options will be shown as below.

*    To get into the Advanced boot options page for Windows 10, hold the Shift key and click restart. Once restarted you will see the options as in the below screenshot.

Follow these steps to disable the signature verification, Click Troubleshoot > Startup setting > 

Restart. Now you will get Startup Setting Options (refer below image), on this screen click F7 to Disable the " Driver Signature Environment"

After this, your system will get restarted and the Cisco Anyconnect VPN installation will not be an issue :-)

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MS PowerPoint: server application, source file, or item can't be found, or returned an unknown error. You may need to reinstall the server application

MS PowerPoint: server application, source file, or item can't be found, or returned an unknown error. You may need to reinstall the server application

This tutorial describes how to fix server application, source file, or item can't be found, or returned an unknown error. You may need to reinstall the server application in MS PowerPoint. Today Morning I received a call from the customer. They unable to insert the PDF object into the Microsoft PowerPoint 2010. I Just look into that machine and resolved the reported problem.

Error:-

Solution:- These are the steps followed to resolve this issue.

Step#1 Install the DDL:- regsvr32 %systemroot%\system32\ole32.dll

                              
Step#2 Disable Protected Mode by going to Edit > Preferences > General  [Deselecting or Uncheck the Radio Button] Enable Protected Mode at startup.

                              
Step#3 Restart Reader and the PowerPoint.

I hope this information is useful for you. Please forgive any typos or incomplete sentences.

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Linux: Configure transparent proxy with squid

In this tutorial I am going to show you how to configure transparent proxy with Squid.

My Scenario:- Our management team asked me to monitor the Internet usage for those who are all using internet inside the office premises. So that, we needs to be monitor and report whey they are doing on the internet..

I got a chance to configure the Squid transparent proxy and my task is simple to setup Squid proxy as transparent server.

My Squid transparent Proxy Setup:- 
i) VMWare ESXi 5.5 Dell Server| Processor 1 Core | RAM 1 GB
ii) Static IP Address
iii) Centos 6.7 (CentOS release 6.7 (Final)
iv) Squid Cache: Version 3.1.23

Let me move on to the Squid transparent proxy configuration part:-

Step #1: Turn off the Linux firewall by using the below the command.
[root@Techproxy ~]# service iptables status [Current status of iptables]
[root@Techproxy ~]# service iptables save [save iptables configuration]
[root@Techproxy ~]# service iptables stop [Stop iptables]
[root@Techproxy ~]# chkconfig iptables off [Stop iptables during run-level or system reboot]
                                       (OR)
Configure iptables to allow squid port 3128

iptables -A INPUT -p tcp -s 0/0 –sport 1024:65535 -d 202.54.1.20 –dport 3128 -m state –state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -p tcp -s 192.168.1.11 –sport 3128 -d 0/0 –dport 1024:65535 -m state –state ESTABLISHED -j ACCEPT

Step #2: Install Squid Cache.
[root@Techproxy squid]# yum install squid

Step #3: Once the installation is completed make sure your squid service is running.

• Squid service status

[root@Techproxy ~]# service squid status 
squid is stopped
Squid service is not started yet to start Squid service please use the below command.
[root@Techproxy ~]# service squid start
Starting squid: .                                          [  OK  ]
                             (OR)
[root@Techproxy ~]# service squid restart
Stopping squid: ................                           [  OK  ]
Starting squid: .                                          [  OK  ]

By default Squid Cache: Version 3.1.23 act as transparent proxy We need not do anything in the configuration part :)

That's it squid transparent proxy configuration part is completed.

Test Squid transparent proxy via telnet 

telnet 192.168.1.11 3128

If you are able to see above black screen we have a connectivity with squid proxy server

Configure squid proxy through client machine.

Tools->Internet Options->Connections Tab-> LAN Settings->Proxy server->Fill Address: & Port information

Real time monitoring the Squid transparent proxy kindly use the below command .
[root@Techproxy squid]# tail -f /var/log/squid/access.log

I hope this information is useful for you. Please forgive any typos or incomplete sentences.

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How to terminate telnet session (Linux, Mac, Windows)

How to terminate telnet session (Linux, Mac, Windows)

This tutorial describes How to terminate or end telnet session on Linux, Mac and Windows.

My Scenario:- Every weekend I performed redundancy test for customer projects to ensure the up-time to our customer through backup internet link after the change over. I telnet the application address port whether we had a connectivity with application or not. likewise i ensure the connectivity. I had no idea how to close telnet session after i made some research and i found a key.

Answer:- Steps to end the telnet session.

Open the telnet prompt by holding down the CTRL + ] 
It will prompt the Microsoft/Linux Telnet> 
Type 'quit' (HIT Enter to abort the session)

Example Linux:- 

Example Windows:- 

That's all

I hope this information is useful for you. Please forgive any typos or incomplete sentences.

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How to Find Your Computer's Uptime or Boot time

How to find your computer's uptime or Boot time in Linux and Windows

Today, I am going to teach you "How to Find Your Computer's Uptime or Boot time of a windows and Linux server"

Linux:-

In a terminal, execute the following command:

[root@techreno.blogspot.com ~]# uptime

Output

uptime ~ techreno.blogspot.com

Windows:-

In a command Prompt, execute the following command:

This command will support for all the windows operating system.

c:\users\Administrator>systeminfo | find /i "Time"

Output:-

uptime for techreno.blogspot.com

or

Execute the following in a command prompt:

c:\users\Administrator>net statistics server

Output

net statistics server - techreno.blogspot.com

I hope this information is useful for you. Please forgive any typos or incomplete sentences.

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