Jeff, 


If you're running IC locally, be sure to check your local DNS records to make sure they are clean an correct for the IC box. We ran into a similar issue on this year's image for the MLTI Macbook. The https connection problems which have been discussed with MLTI and the Apple were showing up locally for us because we had a bad DNS record for our local IC server. As soon as we cleaned everything up, it was nice and speedy. 


Regards, 
Kerry 

Kerry Gallivan 
Technology Director, MSAD#75 
50 Republic Ave., Topsham, Maine 04086 
Office phone: (207) 729-9961 ext 251 
Email: [log in to unmask] 
Skype: kerrygallivan 
Twitter: http://twitter.com/msad75tech 




We have been having an issue with Infinite Campus. I don’t think it is a Joebox issue, but if you have heard anything to contrary, any help would be appreciated. Any Mac running Snow Leopard has EXTREMELY slow response time with Campus (web-based SIS). Leopard and Tiger based Macs as well as any PC running any version of Windows or Linux have no issues. The only thing I have done is to try turning off filtering and allowing clear internet access, but this had no effect. 

Ideas? 

Thanks! 

H 


On 10/4/10 3:30 PM, "Ray Soucy" < [log in to unmask] > wrote: 



I wanted to drop everyone a note on some Joebox issues that we have 
been working with MECnet (the vendor) to resolve. 

I apologize in advance for the length of this email; apparently there 
is a lot to talk about. ;-) 




Restarting the Firewall or MECguard service will cause a brief but 
noticeable outage. This is a design oversight in the way the services 
were implemented, we have identified the cause and MECnet is working 
to re-engineer these services. The updates are in testing now, but 
give us a few weeks before we roll them out to make sure nothing 
breaks. 

For now, the work-around is to wait until the end of the day to 
restart MECguard or the Firewall if it's possible to minimize its 
impact. 




Many of you have called in with reports of problems accessing specific 
websites. Like the old Bess filter, MECguard is implemented as a 
transparent HTTP proxy service. This does indeed break the occasional 
website. The solution is to direct traffic around the proxy service 
so it never gets intercepted at all. This can be done using the "Web 
Filter" section of the Firewall. 

For example. If you wanted to bypass filtering for the website at 
130.111.32.130 (networkmaine.net) you could add a new Web Filter rule 
with the following settings: 

Enable: Yes 
Description: networkmaine.net 
Rule Type: Don't Filter Destination 
Source Type: Firewall Group 
Group: Everyone Else 
Destination Type: IP/Hostname 
IP/Hostname: 130.111.32.130 




Another common request is to block access to Facebook, as students 
quickly figure out that they can use HTTPS (which isn't filtered) in 
place of HTTP. 

To do this, we can create a few Closed Ports rules in the Firewall and 
block HTTPS to the IP addresses used by Facebook. 

The two IP networks currently used by Facebook appear to be 
"66.220.144.0/20" and "69.63.176.0/20". Note that this is may change 
every now and then if Facebook starts using more addresses. 

Here we would create two "Closed Ports" rules (one for each network) 
in the Firewall, below is an example of the settings for one of them. 

Enable Closed Port: Yes 
Description: Facebook 
Rule Chain: FORWARD 
Source Type: Firewall Group 
Group: LAN 
Destination Type: IP/Hostname 
IP/Hostname: 66.220.144.0/20 
Protocol: TCP 
Port to be Closed: 443 

Based on your policy, you may decide to block Facebook specifically, 
or SSL outright for everyone in a certain group. 

Any rules created in the "Open Ports" section of the Firewall are 
evaluated first. So if you wanted to give a specific group, for 
example "Teachers" unrestricted access to SSL websites (including 
Facebook) you could create an Open Port rule in the firewall to let 
that group through. Here is an example: 

Enable Open Port: Yes 
Description: Allow SSL for Teachers 
Rule Chain: FORWARD 
Source Type: Firewall Group 
Group: Teachers 
Destination Type: Firewall Group 
Group: Everyone Else 
Protocol: TCP 
Port to be Opened: 443 




As always if you need assistance in setting this up, feel free to 
contact the Support Desk. 




Lastly, the current software available though software update is 
looking stable, and resolves a series of issues that have been around 
since the start of the school year. 

The support desk has been working with sites to upgrade everyone. If 
you are experiencing problems aside from the Firewall and MECguard 
restart issue mentioned above, you may want to call in and set up a 
time to upgrade your software. 

These updates (mostly) provide: 

Fix for routing engine so it is not dropping its default route when 
the firewall is restarted. 

Fix for UI bug that broke open or closed ports firewall rules if the 
protocol was set to "all". 

Fix for MECguard memory leak causing performance issues. 

Added automated nightly remote backup of configuration to Networkmaine 
(we keep the last 7 days of configuration backups). 

Minor UI fixes to correctly display service status. 

System kernel changes to handle networks larger than 512 addresses 
without causing performance issues. 




If you have been experiencing problems not addressed here I would like 
to hear from you (off-list) so we can take a look at your setup. 

The majority of the time that users are having a terrible experience 
with the Joebox turns out to be something easily corrected by making a 
configuration change. 

I'd also like to thank everyone, especially those of you who were 
unlucky enough to test some of the less-than-stable software updates 
leading up to this batch, for being patient as we work with MECnet to 
improve the Joebox for use in Maine schools. 

If you would like to share your questions, comments, joy, or 
frustration with us in person, a few of us from Networkmaine will be 
around at this year's ACTEM conference next week. I'll be giving a 
Joebox session there on the 14th, so if you haven't signed up yet, you 
might want to take a look. 

-- 
Ray Soucy 

Epic Communications Specialist 

Phone: +1 (207) 561-3526 

Networkmaine, a Unit of the University of Maine System 
http://www.networkmaine.net/