Century IT blog

ISA 2004 / ISA 2006 – Bypassing Web Proxy

August 18th, 2009

Microsoft Small Business Specialist 

You might find some of your network users cant access certain sites when behind a Microsoft ISA 2004 Server.



These sites could be online banking, ecommerce or other web site which doesnt like parts of its web site being accessed through a proxy server.



isa 2004


The trick is to modify your ISA 2004 configuration to add certain sites to a ‘Directly Access’ list.


You can find this setting in configuration, networks, internal network. If you double click on the ‘Internal Network’ and choose the ‘Web Browser’ tab, you can add your list of domains or internet addresses that you want to bypass the ISA 2004 Server Web Proxy.


isa 2004 support


Useful Links

Microsoft ISA Server




Century IT Services – Getting IT Right
Providing Computer Support & Network Support to businesses in Hampshire, Dorset, Surrey, Wiltshire, Sussex & Berkshire

SATA vs SAS what are the benefits?

August 18th, 2009


For many, there can be a lot of confusion when comparing different types of server solutions especially when it comes down the type of hard drives that your server might come with.

A server with SATA hard drives can be considerably cheaper when compared to a server with SAS hard drives, especially if your server quote has multiple hard drives or has a RAID disk subsystem. But this seemingly interchangeable terminology can make all the difference to your IT investment.

SATA – Serial ATA

SAS – Serial Attached SCSI

Serial ATA was designed to replace the older IDE (EIDE) hard drives which were commonly found in most home computer and business workstations.

SAS has evolved separately from the SCSI standard, SCSI drives have traditionally been found in server solutions.

Many server manufacturers including HP and Dell offer entry level servers with SATA drives, with the mid-range and higher end servers coming with SAS hard drives.

According to Seagate, SATA drives are designed to have the following features:-

Computer Support, Network Support

  • Capacity intensive
  • Low availability
  • Sequential reads
  • Seek time 9.5ms
  • Designed to be on 8 Hours a day, 5 days a week

Seagate SAS drives are designed for:-

  • Performance Intensive
  • High Availability
  • Random Reads
  • Seek time of 3.5 ms (15k rpm), 3.9 ms (10k rpm)
  • Designed to be on 24 hours per day, 7 days per week

From a computer support or network support point of view, many SAS drive solutions also include ‘hot swap’ options which basically mean that for many RAID solutions, you can simply replace a failed drive for a replacement without rebooting or interrupting the server or users.

What does all this mean?

Basically if you want good server performance and you don’t want disk I/O bottlenecks and prefer longevity over small price difference, always choose SAS over SATA.

If your requirements are for a small server in a very small office and are not worried about server performance and the larger capacity, cheaper SATA drives appeals to you then choose SATA.

Did you want to discuss your server requirements? For an informed opinion on server specifications and many other IT support subjects ‘Contact Us’

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For more Information on SATA vs SAS see the following links



Century IT Services – Getting IT Right
Providing Computer Support & Network Support to businesses in Hampshire, Dorset, Surrey, Wiltshire, Sussex & Berkshire