Web Host Chat
Bringing Hosts & Customers together since 2001
Home QLinks Members Your Profile Register FAQ's Hosts Only Area SMS Alerts Advertising
User Information
»REGISTER NOW!

Go Back   Web Host Chat > Web Hosting Chat > Networking, Routing and Transit
Reply
 
LinkBack Thread Tools
Old 17th March 2006   #1 (permalink)
~ Forum Staff ~
Super Duper Mod


External (not bb dev staff)
Join Date: Mar 2006
Location: Uxbridge, Middlesex.
Posts: 1,218
JSamuel is on a distinguished road
A few things...

1. Anyone know the 'free' range broadcasting frequencies you're allowed to use without paying in south london? Something about 835.0 Mhz to 86*.0 Mhz? Can't find it on google - admittedly, didn't look hard - this is about audio devices.

2. I was using a new laptop which had Messenger Service enabled, and got a random from an unknown source in a building I was working in awhile ago saying that someone was capturing my wireless packets? Can the WPA-PSK encryption be cracked once you have sniffed a few million packets? Or should I notify the company I was using the laptop for and say to be careful?
__________________
Joel Samuel
WebHostChat Moderator

Real Hosts Limited | Colocation | VP/Dedicated Servers | Monitoring | Backup | Virtual Hosting

[e] j.samuel@real-hosts.co.uk | [p] 0845 890 5480 | [f] 0845 890 5481

Planet Audio Group | MacUniverse - Apple MacBook MacBook Pro MacPro & X-Serve | Planet Audio | Planet Video
[e] sales@planetaudiosystems.co.uk | [p] 0208 950 1485 | [f] 0208 950 1294

I represent my own views and not those of my companies or the forum(s) on which I moderate.

JSamuel is offline   Reply With Quote
Old 17th March 2006   #2 (permalink)
Certified User (98)
Silver Quality
Join Date: Mar 2005
Posts: 93
XILO-Matt is on a distinguished road
Quote:
Originally Posted by KeepItReal
1. Anyone know the 'free' range broadcasting frequencies you're allowed to use without paying in south london? Something about 835.0 Mhz to 86*.0 Mhz? Can't find it on google - admittedly, didn't look hard - this is about audio devices.

2. I was using a new laptop which had Messenger Service enabled, and got a random from an unknown source in a building I was working in awhile ago saying that someone was capturing my wireless packets? Can the WPA-PSK encryption be cracked once you have sniffed a few million packets? Or should I notify the company I was using the laptop for and say to be careful?
1) No idea

2) I'm using WPA2-PSK with a set key rotation. I would assume that this rotation stops the "cracking" of a set passphrase.

Hiding your SSID is also recommended.
__________________
--
Sales and Support Assistance
XILO : Internet Hosting and Online Services
__________________
Registered User
XILO-Matt is offline   Reply With Quote
Old 17th March 2006   #3 (permalink)
Trusted User (1605)
Platinum User
Andrew's Avatar
Join Date: Jun 2002
Location: London
Posts: 1,337
Andrew is on a distinguished road
In short, yes WPA-SK can be cracked. Its more tough than WEP though (you can crack WEP under a minute if you know what your doing). There are *tons* of other factors though (unfortunately as part of my uni degree, we had to make wireless nic's from scratch - was a major PITA).

We personally use the following:
1) MAC address whitelisting
2) SSL Certificate authentication (each machine gets its own .crt installed that the network looks for before allowing access).

We also limit the IP range from the DHCP server to the number of machines we have authenticated, though its not *that* much of a diference, I recommend it
__________________
Andrew
__________________
Registered User
Andrew is offline   Reply With Quote
Old 17th March 2006   #4 (permalink)
~ Forum Staff ~
Super Duper Mod


External (not bb dev staff)
Join Date: Mar 2006
Location: Uxbridge, Middlesex.
Posts: 1,218
JSamuel is on a distinguished road
Cheers folks.
They have alot of walk-in-walk-out users, so I doubt they'd like the MAC filtering idea if they don't have someone 'technical' there to quickly add someone. Same with the DHCP, they have a few 'always there' and about 10 IPs free, so it's pretty much free-hunting.

Andrew,
How did you get that SSL cert thing up? That's obviously not just within the router then is it?

It should be ok with WPA-PSK and key rotation - As you can tell, not a wireless person, only set up a few basic wireless networks, based on one or two wireless routers with WEP or basic WPA-PSK...
__________________
Joel Samuel
WebHostChat Moderator

Real Hosts Limited | Colocation | VP/Dedicated Servers | Monitoring | Backup | Virtual Hosting

[e] j.samuel@real-hosts.co.uk | [p] 0845 890 5480 | [f] 0845 890 5481

Planet Audio Group | MacUniverse - Apple MacBook MacBook Pro MacPro & X-Serve | Planet Audio | Planet Video
[e] sales@planetaudiosystems.co.uk | [p] 0208 950 1485 | [f] 0208 950 1294

I represent my own views and not those of my companies or the forum(s) on which I moderate.

JSamuel is offline   Reply With Quote
Old 17th March 2006   #5 (permalink)
I am Staff at
aTech Media
About My Company!

Certified Host
AdamC's Avatar
Join Date: Jun 2005
Location: Dorset, UK
Posts: 831
AdamC is on a distinguished road
Quote:
How did you get that SSL cert thing up? That's obviously not just within the router then is it?
You'll need more than your standard home-grade access point if you planning on doing anything which is incredibly secure.
__________________
Adam Cooke
aTech Media and aTech Labs - UK Ruby on Rails development specialists
Radar -A Xen virtual machine deployment & management engine
Codebase - a git-based code management platform with ticketing, deployment tracking & more

Company Registration Number: 5523199 VAT Registration Number: GB 868 861 560 Full Legal Details
All views expressed in my posts are my own and not those of aTech Media Limited.
__________________
Web Host - Certified Member
AdamC is offline   Reply With Quote
Old 17th March 2006   #6 (permalink)
Certified User (70)
Silver Quality
anderson's Avatar
Join Date: Mar 2006
Age: 55
Posts: 57
anderson is an unknown quantity at this point
My guess if I am not mistaken is Andrew may have a hardware firewall between the wireless router and the core network.

But I may be wrong
__________________
Registered User
anderson is offline   Reply With Quote
Old 17th March 2006   #7 (permalink)
~ Forum Staff ~
Super Duper Mod


External (not bb dev staff)
Join Date: Mar 2006
Location: Uxbridge, Middlesex.
Posts: 1,218
JSamuel is on a distinguished road
Quote:
Originally Posted by aTech
You'll need more than your standard home-grade access point if you planning on doing anything which is incredibly secure.
Nah, Not rock solid.
Just not being a wireless guru (or guru in general ) just was a tad worried about the fact I got a really random Messenger notice.

The company has the connection downstairs, and it's sorta like a converted house (best to describe it) and it then serves the whole building, which is ground (about 10 PCs and a few laptops) then 1st floor, about the same, then top, about 5 PCs.

Not sure,
I'll just say they should keep to WPA-PSK and rotate keys,
and perhaps try and do MAC filtering. Unless someone s****s the MAC (no idea how easy that would be wirelessly?) when that machine logs off...
__________________
Joel Samuel
WebHostChat Moderator

Real Hosts Limited | Colocation | VP/Dedicated Servers | Monitoring | Backup | Virtual Hosting

[e] j.samuel@real-hosts.co.uk | [p] 0845 890 5480 | [f] 0845 890 5481

Planet Audio Group | MacUniverse - Apple MacBook MacBook Pro MacPro & X-Serve | Planet Audio | Planet Video
[e] sales@planetaudiosystems.co.uk | [p] 0208 950 1485 | [f] 0208 950 1294

I represent my own views and not those of my companies or the forum(s) on which I moderate.

JSamuel is offline   Reply With Quote
Old 17th March 2006   #8 (permalink)
~ Forum Staff ~
Super Duper Mod


External (not bb dev staff)
Join Date: Mar 2006
Location: Uxbridge, Middlesex.
Posts: 1,218
JSamuel is on a distinguished road
Probably not the place for it...
But:

Got the wireless mic system up and running, put it on 850mhz (see what happens, no clashes or complaints so far - google's meant to be my friend, but it's not telling me what I wanna know!) but when the transmitter is turned off, base station puts out some bloody awful noise, at about +5db over the level of signal when the transmitter was on... It's rather odd... I googled this, someone said something about 'squelch' ? Which I also googled, but this thing doesn't have any settings for it - any tips anyone? Apart from 'well, keep it on'
__________________
Joel Samuel
WebHostChat Moderator

Real Hosts Limited | Colocation | VP/Dedicated Servers | Monitoring | Backup | Virtual Hosting

[e] j.samuel@real-hosts.co.uk | [p] 0845 890 5480 | [f] 0845 890 5481

Planet Audio Group | MacUniverse - Apple MacBook MacBook Pro MacPro & X-Serve | Planet Audio | Planet Video
[e] sales@planetaudiosystems.co.uk | [p] 0208 950 1485 | [f] 0208 950 1294

I represent my own views and not those of my companies or the forum(s) on which I moderate.

JSamuel is offline   Reply With Quote
Old 18th March 2006   #9 (permalink)
I am Staff at
Loho
About My Company!

Certified Host
Join Date: Jun 2004
Age: 22
Posts: 134
Rebuke is on a distinguished road
I do theatre technical stuff in my spare time, so have some knowledge of radio mics etc - what model do you have and I can probably tell you where the squelch setting is?

As for frequencies, it's not hard to find, just google for 'radio mic frequencies uk' and the first result gives you want you want - 850 is not a legal frequency to use, the ones you can use are 863-865mhz.
__________________
Alex Brett
alex.brett@loho.co.uk
Loho Internet Services
www.loho.co.uk
__________________
Web Host - Certified Member
Rebuke is offline   Reply With Quote
Old 18th March 2006   #10 (permalink)
~ Forum Staff ~
Super Duper Mod


External (not bb dev staff)
Join Date: Mar 2006
Location: Uxbridge, Middlesex.
Posts: 1,218
JSamuel is on a distinguished road
Alex,
Called the UK devision of the company, Sennheizer (sp?) and they told me that the manual I got was outdated, but the model is fine, and told me how to raise the squelch db to 5 (out of possible 40) which gets rid of it. Works fine now.

863-856.
Doesn't leave me that many options... since we've got places nearby who are within range, and we've heard them over ours, and they've heard us over theirs. Perhaps going to have to ask them to give up a frequency for our additional mic :|
__________________
Joel Samuel
WebHostChat Moderator

Real Hosts Limited | Colocation | VP/Dedicated Servers | Monitoring | Backup | Virtual Hosting

[e] j.samuel@real-hosts.co.uk | [p] 0845 890 5480 | [f] 0845 890 5481

Planet Audio Group | MacUniverse - Apple MacBook MacBook Pro MacPro & X-Serve | Planet Audio | Planet Video
[e] sales@planetaudiosystems.co.uk | [p] 0208 950 1485 | [f] 0208 950 1294

I represent my own views and not those of my companies or the forum(s) on which I moderate.

JSamuel is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
New forum things :-( triffik General Chit Chat & Discussion 3 31st July 2003 09:21 PM
Things are slow :( 4dhosting General Chit Chat & Discussion 0 11th March 2003 11:59 AM


Some great companies!


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.2.0