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Why care about high performance network code?
Apache ist fast enough for most things. But if you read Slashdot a lot, you will see that the sites they link to are often down, because they can’t handle the load. Slashdot itself uses 8 P3/600 with 1 Gig RAM and 10k rpm SCSI disks. www.heise.de uses 4 P3/650 with 1 Gig RAM. ftp.fu-berlin.de is an SGI Origin 200 with 2 R10k/225 with 1 Gig RAM and 10k rpm SCSI disks. It’s obviously possible to buy performance with more hardware, but how can we make sure the software is not the bottleneck?

Why is it important to handle many connections?
I was called by an internet toy shop once. It was a rainy day in December. They are making most of their money in the Christmas season.
They called because their web server was under attack. Some sort of distributed attack had opened 100.000 HTTP connections to their web server. This caused 20.000 Apache processes to be spawned on each of their load balanced Solaris back-ends. The machines were desparation swapping. It was impossible to buy anything from them. I think they were actually afraid of bankruptcy.

What’s New for the Enterprise in iPhone OS 3.0 and Later
iPhone OS 3.x includes numerous enhancements, including the following items of special interest to enterprise users.

• CalDAV calendar wireless syncing is now supported.
• LDAP server support for contact look-up in mail, address book, and SMS.
• Configuration profiles can be encrypted and locked to a device so that their removal requires an administrative password.
• iPhone Configuration Utility now allows you to add and remove encrypted
  configuration profiles directly onto devices that are connected to your computer by USB.
• Online Certificate Status Protocol (OCSP) is now supported for certificate revocation.
• On-demand certificate-based VPN connections are now supported.
• VPN proxy configuration via a configuration profile and VPN servers is supported.
• Microsoft Exchange users can invite others to meetings. Microsoft Exchange 2007 users can also view reply status.
• Exchange ActiveSync client certificate-based authentication is now supported.

Proxy Server CCProxy is easy-to-use and powerful Internet connection sharing software. Supporting broadband, DSL, dial-up, optical fiber, satellite, ISDN and DDN connections, it helps you build your own proxy server and share Internet access within the LAN efficiently and easily. CC Proxy Server can act as HTTP, mail, FTP, SOCKS, news and telnet proxy server. And It features powerful account management functions, including Internet access control, bandwidth control, Internet web filtering, content filtering and time control. It also provides web caching, online access monitoring, access logging and bandwidth usage statistics functions. CC Proxy is compatible with Win98, WinME, WinNT, Win2000, WinXP, Win2003, Vista and Win2008.

This trouble shooting guide aims to get you connected to the internet via a UTM Firewall and make sure the services you want working through the UTM firewall are working ok. It is written from a Murphy’s law perspective - everything that could possibly go wrong has gone wrong, and we’re going to fix it one step at a time.

This is a work in progress. Murphy’s law applies to this document too after all - so if we missed anything - let us know and we’ll add it in!

It is acknowledged that the world outside this guide contains more than just windows-PC’s - all the same rules and solutions apply its all TCP/IP after all - the tools just have different names.

Where the author has rashly typed ‘tcpdump’ you may also use ‘Diagnostics -> Packet Capture’, Wireshark or similar depending on which device you need it on.

Configuring 802.1X Authentication Client for Windows 7

1. Click on Windows button to display the main menu. Click on “Control Panel”.
2. In the Control Panel window, click on “Network and Internet”.
3. In the Network and Internet window, click on “Network and Sharing Center”.
4. In the Network and Sharing Center window, click on “Manage wireless networks”.
5. In the Manage Wireless Networks window, click on “Add”.
6. In the next window, click on “Manually create a network profile”.
7. When prompted to enter the wireless network information:
   • Enter the correct Network name/SSID. (STAFF is used in this example)
   • Select “802.1x” as the Security type. Encryption type will be defaulted to WEP.
   • Enable the “Start this connection automatically” checkbox.
   • Enable the “Connect even if the network is not broadcasting” checkbox.
   • Click the “Next” button
8. After adding the wireless network profile successfully, click on the “Change connection settings”.
9. In the pop-up window, Wireless Network Properties:
   • Ensure the checkboxes for “Connect automatically when this network is in range” and “Connect even if the network is not broadcasting its name (SSID)” are checked..
   • Click on the “Security” tab.
10. Under the Security options:
    • Ensure Security type is set to 802.1X.
    • Ensure Encryption type is set to WEP.
    • Select “Microsoft: Protected EAP (PEAP)” for network authentication method.
    • Click on “Settings” button.
11. In the Protected EAP Properties page:
    • Uncheck “Validate server certificate”.
    • Uncheck “Enable Fast Reconnect”.
    • Select “Secured password (EAP-MSCHAP v2)” for authentication method
    • Click on the “Configure…” button.
    • Uncheck the “Automatically use my Windows login name and password”.
    • Click on OK button.
12. Click the “OK” button twice to return to the below screen. Click on “Close” button.
13. You have successfully created a wireless network profile.

Download Configuring 802.1X Authentication Client for Windows 7

Summary:
Sprint Location Services is a new feature available with some Sprint Mobile Broadband Cards As of Jan 2007, the two connection cards that are compatible with this service are:

1. Novatel Wireless S720
2. Novatel Wireless U720

Additional cards with these capabilities will be added throughout 2007

In order to use this service, the end user must have an updated version of the Sprint Connection Manager which has this feature embedded. To download the latest version, click here www.sprint.com/downloads