The following e-mail and other varients have started circulating. This is a bogus message and we would like to warn anyone on or off our networks about this. DO NOT fall for this:
Dear Microsoft Customer,
Starting 18/10/2009 the ‘Conficker’ worm began infecting Microsoft customers unusually rapidly. Microsoft has been advised by your Internet provider that your network is infected.
To counteract further spread we advise removing the infection using an antispyware program. We are supplying all effected Windows Users with a free system scan in order to clean any files infected by the virus.
Please install attached file to start the scan. The process takes under a minute and will prevent your files from being compromised. We appreciate your prompt cooperation.
Regards,
Microsoft Windows Agent #2 (Hollis)
Microsoft Windows Computer Safety Division
Again, this and similar messages have no validity and you SHOULD NOT take any requested actions.
Since the introduction of the SSG series of firewalls, Juniper has incorporated something called the bgroup. Older models such as the 5GT, Netscreen 25, and others did not have this feature. The bgroup (bgroup0, bgroup1, or others) are logical networks. They allow you use network ports assigned to the bgroup as a layer 3 switch. You can assign different physical ports to different bgroups. This allows you to create or seperate broadcast domains. Meaning, any devices using ports in the same bgroup can natively communicate. If you do not want them to communicate, you will need to apply an intra-zone policy which effectively blocks or limits traffic to devices among the bgroup.
Older models such as the Netscreen 25 has a total of 4 interfaces. They can be used in a variety of ways, but since it has no bgroup, it cannot act as a switch between two devices. As a result, you would need to plug a switch into one of the ports, and hang servers or other devices off the switch. The newer SSG140 not only provided the bgroup feature, but also came with other great stuff like gigabit interfaces, a higher session capacity, and more horsepower.
You may see this error when something on your webserver tries to reach out to another site using HTTPS. This is commonly seen when billing software tries to run credit card transactions and must send the card data securely to a merchant processing account.
The fix for this is simple, you must enable “Curl SSL” in your php options. If you are using Cpanel go through WHM –> Software –> Easy/Apache (Apache Update) and follow the wizard. If you don’t know what you are doing the wizard will tell you the “safest” values to choose. Just make sure you check “Curl SSL” when you prompted (I think it’s on the 3rd page of options).
In my case, I took this time to update Apache to version 2.2 and PHP to 5.2.10. The latest and greatest. The whole process will take a while. Anywhere from 10 - 30 minutes. Make sure you check your sites to see they are still working and that you didn’t destroy Apache.
Hope this helps!
You might see this in your Awstats, Google Analytics, or other stat tracking package. This is basically a source of pop-up ad traffic. This service can be purchased on ebay and many other sites to “increase” your website traffic. I’ll be the first one to say this traffic in junk. Most of it comes from Russia, Ukraine, and other Asian/Eurpoean countries.
The only use for this service may be to increase your trafffic ranking with Alexa. Other than that, ignore it.
To make this clear, you need “ESX 3.5 update 4″ to install ESX 3.5 on an R410. The SATA DVD drive will not work correctly and the network cards will not be detected correctly.
I have been in numerous data centers over the years and frankly you would be surprised at some of the temperatures. Internal “data centers” built by corporations are generally smaller (~500-2500 sq ft.). These areas are much easier to cool. I did some work for a local company who is headquartered in Orlando. I estimated their data center to be around 600 sq ft. The temperature in the room: a shocking 65 degrees. You couldn’t stay in there for very long before your fingers became numb and hindered the ability to type.
On the flip side, the Orlando Level 3 data center has a sustained temperature of around 75 degrees. This facility is around 10,000 sq ft and most of the cabinets in that facility DO NOT have perforated doors. This raises the internal temperature of high density cabinets to around 85-90 degrees. While this is viewed as high, it is surprisingly acceptable to run at such temperatures. Vendors design hardware to sustain higher temperatures than advertised for very such reasons.
Next time your server starts to run a little hot, don’t panic. Chances are it will be just fine.