Archive for September, 2006
SLP notes etc…
Comments(0)Netware seems to be reliant on slp more and more with each client rolling out. It is funny as up until the latest client i never really needed it for clients to login. With the lastest service pack it almost seems that the client will time out or something.
So here is a quick and simple setup guide to do slp on netware servers.
1. Go to your server you want to make the main slp and run “load slpda /a”. This will create the right OU in Edir as well as the default group, all will be under the servers OU.
2. Go to each server and change SYS:ETC\SLP.CFG to have the server you created above. Example ” DA IPV4, 10.x.x.x”. Then enter monitor and go to ’server parameters’. Then ’service location protocol’. Under here you will change the following. ‘SLP Scope List’ to and lastly change the option ‘SLP DA Discovery Options” to 4. This will make the slp service go only to the slp file you edited before.
3. Once those changes are done it is possible to run ’slp services’ to see what is being stored in slp and if the servers are registering themselves right.
At Server type = display slp services to see what the server see’s
The fun part is now integrating SLP with DHCP when the dhcp is not on a netware server. More to come later on that.
Some links
http://www.ithowto.com/microsoft/w2kdhcpslp.htm
http://support.microsoft.com/?kbid=285019
http://support.novell.com/cgi-bin/search/searchtid.cgi?/10054413.htm
http://support.novell.com/techcenter/articles/ana20000402.html
http://support.novell.com/cgi-bin/search/searchtid.cgi?10059981.htm
On the client there is a little utility that helps in diagnosing slp operation called ’slpinfo’. Help output looks like this:
SLPINFO: Displays diagnostic information for the Service Location
Protocol driver
SYNTAX: SLPINFO [options]
[options]: /D - Displays information about known Directory Agents
/C - Displays configured parameter settings
/O - Same as /C
/T - Displays configured timer values
/R - Displays Registration Scope Filters
/S - Displays known SLP scopes
/I - Displays local interface information
/A - Displays all options listed above
/All - Displays all options listed above
/H - Displays this help screen
/Help - Displays this help screen
EXAMPLES: SLPINFO /D /S - displays Directory Agents and scopes
slpinfo /ot - displays operational parameters and timers
UPdate: New Cool Solutions Web Link Oct 27 06
Interesting issue with proxies and the school
Comments(0)Well as the network person at a school district i get the interesting task of being in the middle of teachers wanting to use websites in thier lesson plans and students wanting to do what ever they want on the web. We subscribe to a service through the state that will allow ius to block sites through catagories and will allow us to do suctom lists but only district wide. This tends to be an issue when there are different grade levels etc…
Even though there are issues with the filtering service it serves it’s purpose to some extent. One major issue is the advent of proxy services that are popping up that use SSL. Without an enviroment with a proxy server it is difficult to block SSL connections. Since we use an upstream service this makes things more difficult.
The Plan:
1. Create a squid server that will connect to our Edir server to allow for authentication.
2. Find a way to get a list of proxy services the kids use
3. Create a simplified monitoring solution that will capture dns resolutions and browsing habits that will compile them into per domain so i can see what domains are most used etc…
