About network security

[Lam Chan Chi]

I have now 20 computers and all with usb 3.0. Now I find that I can all
connect to internet and form network and use printer and storage. But I
don't know how to security the network. I now use 12 computer with winXP and
11 computer form a network that does not connect to internet.

J&W 790GX fusion, 4G ram, AMD 250, ATI 5750, Asus U3S6, Mygica tv card, 320G
harddisk with Winxp, and 2x 2TB harddisk for storage DVD and BR9 copy and
serve to all 11 computer.

Inno3D 680i SLI, 2G ram, Intel E4600, 2x 9600GSO, Asus U3S6, TV card, 250G
harddisk with WinXP, and 2x 1.5TB harddisk for storage of BD copy and serve
to all 11 computer.

Inno3D 680i SLI, 2G ram, Intel 4600, 2x 9600GSO, Asus U3S6, TV card, 250G
harddisk with WinXP, and 2x 1.5TG harddisk for storage of BD copy and serve
to all 11 computer.

Magic Pro A2A extreme II, 2G ram, AMD 5200+, ATI 5750 + 3850, TV card, Asus
U3S6, 300G harddisk with WinXP, and 2x 1.5TG for storage for BD copy and
serve to all 11 computer.

Magic Pro A2N5, 2G ram, AMD 4800+, 2x 9600GT, 120G harddisk with WinXP and
640G harddisk.

Magic Pro A2N5, 2G ram, AMD 4800+, 2x 9600GT, 120G harddisk with WinXP and
640G harddisk

Magic Pro A2N5 extreme II, 3G ram, AMD 4800+, 2x 9600GT, 80G harddisk with
WinXP, 640G harddisk

Magic Pro A2N5 extreme II, 3G ram, AMD 4800+, 2x 9600GT, 80G harddisk with
WinXP, 640G harddisk

Magic Pro P6N SLI, Pentium D 3G, 2G ram, 80G harddisk and 640G harddisk.

J&W P45 motherboard, Q6600, 2G ram, 80G harddisk with WinXP, 640G harddisk,
2x 3850

J& W P45 motherboard, Q6600, 2G ram, 2x 3870, 80G harddisk with WinXP and
640G harddisk

This 11 computer use 2x 8 ports 1000M switch and a 5 port 1000M switch. This
network also connect to 5 harddisk BD-ISO player.

My version of winXP SP3 is from download. It says it is a corp. crack
version. I have tried before with HK version. It seems to get error with
network for 11 computers network. Perhaps too many computers even though I
maximum connect 5 computers. My Win7 also get this error. Since WinXP ceased
to be obtain in USA. My config. seems quite difficult to get in HongKong.

My internet connection i-cable connect to a 4-ports router. 2 ports to
computers and 1 ports to a wireless router and that router also connect to
another wireless router to increase signal strength. I find that if a single
internet connection link with any 11 computers. Than all 11 computers can
connect to internet. Since I hope to use network for my 5 players on 4
server computer with 2x 1.5TB or more storage. I use no security on my 2
wireless router and without security is the only way to increase signal
strength.

This 3 c omputer with internet connection with cable

J&W 750SLI, AMD 955, 2x 260GTX, 4G ram, 2x 250G harddisk raid 0 with Win7 64
bits

XFX 750a SLI, AMD 945, 2x 260GTX, 4G ram, 320G 2.5" harddisk with Win7 64
bits.

P6N SLI, Pentrium D 2.8G, 2G ram, 2x 8800GS, 80G harddisk with WinXP and
640G harddisk.

This computers using internet with wireless

A2A extreme II, AMD 6000+, 4G ram, 2x 5770, 3450, 500G harddisk with Win7 64
bits.

This 5 computers without internet

J&W 750A SLI, AMD 955, 2x 465GTX, 4G ram, 250G with Win7 32 bits and 250G
with Win7 64 bits

J&W 750A SLI, AMD 945, 2x 260GTX, 4G ram, 250G with Win7 32 bits and 250G
with Win7 64 bits

XFX 750A SLI, AMD 945, 2x 260GTX, 4G ram, 250G with Win7 32 bits and 250G
with Win7 64 bits

J&W 750A SLI, AMD955, 2x 260GTX, 4G ram, 250G 2.5" with Win7 64 bits and
250G with Win7 32 bits

XFX750A, AMD 945, 2x 470GTX, 4G ram, 250G 2.5 with Win7 64 bits and 250G
with Win7 32 bits

Al;l computers with is very easy to access internet using wireless. But I
find once using wireless, all computers can be easily seen by other router
in my building. I use 2 wireless router. I find my signal is very strong
while other router in my building can maximum reach 40% of my signal
strength, perhaps my wireless have new clear signal channel design and my
special connection.