Vmware Server Management Service Restart Tips

I have one virtual host which I need to use VMware Server for some business reason so I downloaded the latest version and get it installed pretty easily as what I did before for quite a lot of VMware Server installations. It used to be quite stable but for some reason this version keeps crashing one of my vmware instances. The vmware logs did not give me any useful hint so I can not figure out how to fix the crashing yet.

Triple Sure Your Web Servers Are NOT the Open Proxy

When examining the log for one of my clients, I noticed there are quite a few entries like:

Connection attempts using mod_proxy: -> 6 Time(s) -> 6 Time(s)

Since they do use proxy module on those apache servers, looks like someone are trying to use the servers as open proxy. Hmmm, worth to find more detail behind.

What is the proper way to install HP Color LaserJet CM1312nfi MFP network printer

I bought this multi funcation printer for my home office recently and installed into first workstation without any problem. Since it's a network printer, I tried to install the driver for the rest of my computers in this long weekend. Here is what I did to get it working eventually.

First I noticed there are both Universal Print Driver and the "Windows Full Solutions Software" from the HP download page.

ModSecurity Community Console Application Tips

ModSecurity is a open source web application firewall. "With over 70% of all attacks now carried out over the web application level, organisations need every help they can get in making their systems secure. Web application firewalls are deployed to establish an external security layer that increases security, detects, and prevents attacks before they reach web applications."

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Review of PMTU - Fix Broken Communication Caused by VPN

Have you ever experienced that your remote desktop client could not connect to some of your windows servers? And most of the time the traffic was going through VPN tunnel. You have tried all kinds of troubleshooting tools such as ping, telnet etc and they all worked well. And your sniffer told you the tcp session on port 3389 was established too. But wait a second, some of the packets could not be seen from the other side. What is that?

Dance with McAfee

McAfee released software patches today for ePO agents on the non-Windows platforms. Since I am one of the lucky guy who is carrying on a PCI auditing project which uses McAfee ePO/Solidcore products across the environment, I was trying to make ePO agent works on one of the Solaris servers. After long chating with the McAfee support this afternoon, he asked me to do re-install type of things but none of them worked.

Add Virtual Disk on the Fly with Free XenServer

One of my customers is paying vmware tons of money to run vSphere. It's really nice to work with the vCenter tools and I was definitely enjoying this product until I found it doesn't allow me to add virtual disk on the fly while the virtual instance was running. It says "License not available to perform the operation, Feature hotplug not licensed, requires need have have".

Recent EMR Related Learning Material

EMR(Electronic Medical Record)/EHR(Electronic Health Record) is the area I paid close attention to for the past years. Government always takes that as a high priority and companies are working at their hardest to tackle the problem. There are a lot of security related issues (such as this one) and certainly keep learning from the industry best practice will help me better understand and work in this field.


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