Jump to content

rosswilson

Members
  • Posts

    47
  • Joined

Everything posted by rosswilson

  1. Thanks for the good analogy I was trying to come up with one earlier too. But what real "waste" is there in using the 10.x.x.x IP range? After all, the whole 10.x.x.x IP range is private. By choosing to use 10.x.x.x instead of 192.168.x.x or 172.16.x.x just means actech has a lot more IP addresses to play with (3 octets) ... and it would seem he will need a fair few IPs if all his other schools are to be connected onto the same LAN/WAN/MAN. 10.0.0.0 - 10.0.7.255 would be his first subnet, then 10.0.8.0 - 10.0.15.255 would be the second and so forth. 10.255.248.0 to 10.255.255.255 would be his last subnet. By using the 10.x.x.x private address range actech can have 8192 (/21) subnets. If he had used 192.168.x.x he only has two octects to play with, thus reducing the amount of (/21) subnets he can have to 32. Ross
  2. But if he is subnetting his network with a /21 subnet mask then the whole concept of Class A, Class B, and Class C networks disappear. What was once referred to as a "Class A" network is simply a subnet with a /8 subnet mask. The concept of Class ABC networks was before CIDR subnetting was introduced. Quote from Wikipedia: Classful addressing is obsolete and has not been used in the Internet since the implementation of Classless Inter-Domain Routing (CIDR) starting in 1993. For example, while 10.0.0.0/8 was a single class A network, it is common for organizations to divide it into smaller /16 or /24 networks. A classful network is a network architecture used in the Internet until around 1993. It divides the address space for Internet Protocol Version 4 into five address classes. Each class, coded in the first four bits of the address, defines a different network size (number of hosts), or a different network type (unicast or multicast). Maybe I am interpreting you wrong, but how will the OP be "extremely underutiliz[ing]" this "Class A" network? Ross
  3. I think he is proposing to use the a /21 network mask for his subnets. It just so happens that he has chosen to use the 10.x.x.x IP address format. So the quote above is not strictly true; yes 10.x.x.x subnets do exist and they commonly have a /8 subnet mask, but in this case the OP has chosen differently. A /21 subnet mask would allow up to 2046 devices on one subnet. However, I do agree with you that it remains good practice to keep to the 512 devices per subnet rule. Ross
  4. Worked for me wiggum123 Running on Mac and using Chrome. Ross
  5. Nephilim, could you expand upon this a little please? I am in a similar position to actech and i'm intreiged by your mention of "over lapping IP addresses". What do you mean? Sorry for slightly hijacking your thread actech, but hopefully my question is something that crossed your mind too Many thanks, Ross
  6. I've just had a look at your site and i'm curious about a section of JavaScript that you're using. Look for the div tag with an ID of "_atssh". Within this is a few lines of JavaScript that appears to be related to the bookmark sharing service addthis.com. Is this meant to be on your site? There is a lot of Google Analytics JavaScript in your page source, some of which seems to be duplicated many times. Maybe there is something going on here with regards to the duplicated Google Analytics code all trying to record the users navigation and clicking of links? I can't imagine they are playing too nicely together. Apart from the large amount of JavaScript being used on the site I noticed that you're using jQuery. I know that jQuery has the ablity to hook into mouse clicks, possibly try using the latest jQuery version? It's a difficult problem to diagnose with so much JavaScript going on, all in seperate .js files. However I hope this is off some use. Ross
  7. I agree with john; setup two groups. One security group "ReceptionStaffSG" and one email distribution group "ReceptionStaffEmail". This way you can have control over who gets access to the file shares, to email, or to both. Ross
  8. When you turned off the strong password requirement in the Default Domain Policy did you disable the particular group policy settings ("Passwords must meet complexity requirements" and "Minimum password length" ect) or set them to Not Configured? I only ask because I have run into this problem with other group policy settings where the Local Security Policy has overridden the Group Policy. If you explicitly Disable the settings in Group Policy the client will respect these settings. Ross
  9. No problem glad I could help. Ross
  10. The APC Calculator is a good tool to get an idea of server run times for specifying a UPS: UPS Selector Sizing Applications Ross
  11. So when a user trys to login as soon as the machine boots, thats when the problem occurs? But if they wait a minute after sitting at the logon screen their logon processes as normal? Then could the computer be trying to connect to the network just after the login screen appears, and when the user trys to login the computer hasn't yet realised the network is unavailable? I've seen this happen for laptops that cannot connect to the wireless network until actually logged in so that the (poorly written) drivers can load up on logon. In Group Policy there is a policy setting called "Always wait for the network at login" (maybe worded slightly similar, can't remember the exact wording). Could this be of some help? Ross
  12. I've come across this before too. I solved the issue as Dan-Speed suggested by disabling Quicktime browser plugin. As an aside I believe Facebook uses Quicktime to play the "pop" sound when a new message is received. Ross
  13. Just out of interest ... how does your system know the user's password? I was under the impression that AD passwords used one way encryption. Does your system therefore just store a separate list of user's passwords (much in the same way as the spreadsheet method)? If it does, when a user changes their password (for example at the "change password on next login" prompt, how does your system stay in sync? Kind Regards, Ross
  14. Yeah I noticed that too. Looks like we're the only two that watched the video properly Ross
  15. Try testing this stuck key theory by unplugging the keyboard and using the on screen keyboard. Ross
  16. We better all stop using those nasty power sockets to power our equipment! I'm having a wind turbine set up instead of letting Mr Spy see what I'm doing on my computer. Seriously though, a genuine BBC News article: BBC NEWS | Technology | Snooping through the power socket Ross
  17. Software would only work if your projectors use a dual display out graphics card. That way the computer could freeze the second display output (going to the projector) whilst the first output (going to the teacher's monitor) remains unaffected. If you use a hardware splitter (splitting just one graphics output) then I believe you're out of luck, unless you can find one that has a freeze feature built-in. Ross
  18. You might want to look into using: cleanmgr.exe /sageset:50 This will show a panel where you can tick what items you want cleaning up. These settings are stored in the registry. cleanmgr.exe /sagerun:50 Will run the cleanup commands you configured earlier. If you do the /sageset:50 part when building your base image then you could execute the cleanup on a shutdown, remotely, or via a scheduled task. This page explains the process a bit more with references to the location in the registry where the settings are stored: Automate Disk Cleanup using Task Scheduler in Windows XP Ross
  19. Does anybody have any real life scenario where a teacher would need read or read/write access to student's work? I have been following this thread and cannot think of any reasons where a teacher would need access at all. A lot of students My Documents folders lack organisation and thus it is bad enough them trying to find the correct version of their coursework - let alone the teacher. Just something to think about and spark a conversation... Ross
  20. Although this thread is quite old , I can confirm that the wallpaper is stored in the following file (on Vista at least): If you open this file in Notepad you will come across a section as shown in my screenshot attachment. As you can see, the wallpaper in my case is under my Pictures folder of the %userprofile% location. I suspect that in the OP's case, this string in each user's .theme file is still pointing to the old server. I hope this is of use to somebody in the future. Ross
  21. Hi, Try "Tree Size Free" to see how much space each folder on your computer is using. I have used it before and is very good. Just point it to the C:\ drive and let it run. You will end up with a nice tree display of all your folders in size order. Another tip is using it on the root folder of your roaming profiles or redirected folders to see who is using the most storage. You can also flick the software over to display percentages that each folder is using (out of the total size of the root folder). Great software, and free! Ross
  22. Sorry about that, I hadn't noticed that PMs were disabled on my account. I have enabled them and will send you a message in just a second. Regards, Ross
  23. Hi, I am interested in a HP ML115 G5 for VMware ESXi testing. I am a student and am looking to purchase a low cost server that is capable of running a handful of VMs. I have looked at Servers Plus' website (HP 470065-018 ProLiant ML115 G5 Tower Server | ServersPlus) and saw the ML115 offering for £169.99. What are people's thoughts on this for a entry level server for ESXi work? I would be looking to max out the memory to 8GB and add a 500gb HDD. Therefore please could suppliers quote for a ML115 with 8gb RAM and one additional 7200rpm 500gb hard drive. Many thanks, Ross
  24. Hi Everybody, Here's a question for those of you in the know regarding Windows 7. Now a little background, I have setup a test network in VMware Workstation comprising of Server 2008 R2 and Windows 7 RC. I have created a new AD domain, created a few OUs, created a few dummy users, created some groups for said users, and have created some shared folders. One particular shared folder is located at \\SERVER-1\Redirected_Desktops$\Students and I have configured my user's Desktop to be redirected here through GP. I have set the permissions so only Administrators has write access and students have read only. All is fine so far. Now, here is the quirk. I noticed that Windows 7 places a new folder in User root folder, along with "Pictures", "Music" and so forth. How can I remove this? I have attached a screenshot to explain further. Notice the folder "Students" on the bottom row. How this be removed? Is there a Group Policy setting to remove this? Many thanks, Ross
  25. Yes, I agree with Diello because if you set your internal domain to the same as your externally hosted website you will get problems with accessing the site. This is because when an internal client types the website address your local DNS server will believe your trying to access the internal resources. There are ways around this (Google: "Split DNS") but I don't really think it's worth it. One thing I have noticed however is that when creating a new AD domain (I did this on Server 2008), make sure the NETBIOS domain name is to your liking as it will appear on Vista and Windows 7 clients logon screen. Although it only displays this name if you haven’t setup Group Policy to hide the last logged in username. Hope this is of some help when naming your new AD domain. Ross
×
×
  • Create New...