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How to Solve the Virtualbox Bridged Adapter Problem

It is a problem I met since Virtualbox 5.0.4. I can not make the guest OS communicate with Internet or Host, even the IP address is correct. It is similar to the Virtualbox bug of bridged connection, which is fixed in Virtualbox 5.0.6.  So, installed the latest version of Virtualbox on my Windows 7 64bit.

The guest OS is Ubuntu 14.04 64bit. I upgrade my installation to Virtualbox 5.0.6. So the following are based Virtualbox 5.0.6.

When I tried to run yum update to do a update, it can not connect to the repos. And the wired thing is it is using IPv6 address. And actually I don’t have IPv6 implement in my LAN.

The network adapter information as below, looks normal.

ifconfig-info

The first time I run the command of yum update, it said another app is currently holding the yum lock. I don’t know why, and saw no process in memory by top command. So I just delected the lock file /var/run/yum.pid.

locked-by-yum-pid

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Chrome keeps crashing on startup

This morning, when I turn on my PC, I saw the alert message window of Google Chrome.

google-chrome-45--crash

Problem signature:
Problem Event Name:    BEX
Application Name:    chrome.exe
Application Version:    45.0.2454.85
Application Timestamp:    55df881b
Fault Module Name:    guard32.dll
Fault Module Version:    8.2.0.4674
Fault Module Timestamp:    55c148a3
Exception Offset:    000269c9
Exception Code:    c0000409
Exception Data:    00000000
OS Version:    6.1.7601.2.1.0.256.28
Locale ID:    1033
Additional Information 1:    245b
Additional Information 2:    245b87f1e9247b2ba9f9bea5f513a892
Additional Information 3:    b91a
Additional Information 4:    b91adc989991e0190675cb62c0dcb1c3

 

I click “Close the program”, and try a lot of time and still not working.

After Google the error, I knew the problem is because of Comodo Firewall program. It has a HIPS facility.

Let me disply the steps to solve this problem.

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Free Professional Firewall from Comodo

I was wondering if I need a firewall on my desktop, which is Windows 7.  Even Symantec Endpoint Protection anti-virus program is installed.

Late I found Comodo Firewall. It has CNET Editor’s 5 stars Rating.  And it is FREE.

Go to the official site to download the Free Firewall.

  • No complex configuration issues—perfect for amateur users
  • Quickly learns user behavior to deliver personalized protection
  • User-friendly, attractive graphical interface
  • Lots of configuration options let techies configure things just as they like
  • DDP-based security keeps you informed and PCs safe

 

 

Here is a screenshot on my desktop.

comodo-firewal

Looks simple? When I click the Tasks link on the right-upper, there are so many advanced features.

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Prepare CentOS 6.3 within VirtualBox

For testing purpose, I need a CentOS 6.3. So I download CentOS DVD image. Installed it in VirtualBox as web server.
Note: The network of guest system is using bridged, which allow the guest access internet, and also allow the computer in Lan can access the guest system.
The installation is simple, no problem. I would like to share my experience I met later.
1) Prepare the network
Only lo, or loopback is active. I can not access Internet from the CentOS.
eth0 is not showing when I run ifconfig command.

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