best proxy server

i am planning to buy hardware proxy server for my company
but i need your advice about which is the best hardware proxy
server brand other than bluecoat please advice?
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Depends on what features you are looking for and what kind of budget?
ashraf2002Author Commented:
i want to use it as bandwidth management like distribute traffic between users , put some high priority for some users like administrators (same features for MS ISA server)
no problem about budget
Hm, ok even that can range from pretty basic to some fairly complex bells and whistles.

Are you talking about just plain internet (http/https) access? Or do you need to support VPN access/VoiP/other corporate services to remote users?

100 users? or 10000?

What other infrastructure do you have in place?

Do you need to have granularity down to users or just groups? Or if just down to subnets then you can do it on a number of firewalls already without messing around proxies/traffic shapers?

Do you need to differentiate between protocols and even down to individual actions on protocols (eg. GET v's POST on HTTP)?

Have a look at some of these:

Cisco NAC Appliance:

XRoads Networks:

Juniper WX series:

On a side note, we have actually moved to BlueCoats for a 500 user multi-site deployment and they are very effective so far, enforcing QoS bandwidth policies across groups/services without issues. We have some nifty security features specific to protocols, to throttle down/up as required.

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we have just implemented a cymphonix solution. . I have worked with squid for years but this is the best proxy server i have ever used. this unfortunately, is not open source. :(
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