Chris_Cook

All our staff printing is charged to departments. Its up to them how they spend it. They get the bill at the end of each month. We have moved some areas over to networked photocopiers. These can also be used to scan to a pdf that gets emailed to them. As everyone else has said, its not our job to police the schools finances, thats up to SLT and the finance dept.

22/32. Which given the crappy week I'm having seems like a very low number.

I've brought a load of these a while a go, and started to change some over, but never finished. CPC do a load of different shaped cams to fit different cabs. Its the same key as a lot of other network cabs (L&F 92250) 8305A-250 - CAM LOCK - SERIES 8 -30MM- 250 | CPC You sound like you might need something a bit more heavy duty though, if you are getting locks vandalised. These can be undone with a large flat screwdriver, so arn't the most secure thing in the world. Good at stopping people fiddling, but not much more. CPC also have different styles of camlocks, but most could be picked pretty easily. Edit: you could also look at getting a master key, if all the locks take similar shaped keys. Not all L&F locks are made to take master keys though. Might also get into some filing cabs. Not that you would want to do that. http://www.fastkeys.co.uk/keys%2Fman/products/LOWE-FLETCHER/606

We like them. We had a batch that all blew power supplies, but they all got sorted. Even the last three that didn't go before the warranty ran out got sorted. Can't fault the service, either an engineer out the next working day, or they can send the spare parts for you to fit at your own convenience, and then you return the broken bit after. We have a couple of really good account managers. The sort of people who get stuff done when asked and don't call up every 5 mins asking if I want to buy something.

We have some hp 4250's, probably a little bit younger than yours, maybe 9 years old. I will be looking at servicing them soon. They are rock solid. One has had two fusers explode in it (user error both times) and still runs fine. A bit of a clean and some new pickup rollers, and I'm sure they will do us a few more years. I'm less impressed with the newer hp printers. They just don't seem to be the same quality. We have two kyocera printers in DT, and they don't seem to give us any problem. I will probably look towards some other makes in future. Maybe ricoh. But then again, I just found a few old printers in a cupboard that still work, so it will be a while before I buy more.

Does the visualiser power supply use a two pin figure-8 connector or two pin mains plug with an adaptor? Sometimes you can fix this sort of thing by plugging the connector in the other way round.

Theres quite a few people running casio projectors here. We run both models of the laser hybrid projectors and haven't had a single problem yet. Some have been in 2 years now, others coming up to a year. I think if a competitor/supplier makes a claim like that, they should be prepared to back it up with some facts and examples, not just pet theories.

Depending on how much work you want to do, we have two options for our promethean poles: 1. Casio Hybrid projector and a peerless adaptor/bracket (Peerless Casio Enclosure Promethean Pole Adaptor Kit PCASPRM-W). This just needs bolting together, although its a bit pricy. Its well made though. This just bolts on to the end of the threaded rod. 2. a sahara universal mount , and drill the hole out. Its quite thick steel though, but not too difficult a job if you have the tools, skills and time. Much better long term, as you can fit any projector on one of those. You need these bits from CPC: 1150001 - SAHARA - PROJECTOR SUPPORT, SAHARA MOUNTS | CPC and 1150023 - SAHARA - UNIVERSAL PLATE, SAHARA MOUNTS | CPC You could also drill through a bit of wood as above, but you need to make sure the screws won't pull out over time, or if the wood gets damp. Whatever you do needs to be rock solid.

Are you using webscreen 2 supported by atomwide by any chance? We had a similar issue reported to us by atomwide and they said there was an option to block access to google via https. Not ideal, but may be better than nothing. The only other workaround suggested to us was to use bing.

Office Ping Pong was great fun at the end of last term. No idea where the ping pong ball came from. Or where it ended up after we pelted the ball round the room as hard as we could with various improvised bats.

So MRBS can use login information from many sources. The $auth code from your post creates a user inside mrbs called chris, with a password of 'password'. MRBS uses a separate array to allow admin access based on different conditions, which could be ip address, or username. The lines that control this begin with $auth["admin"][]. To make the chris user above an admin, add the line: $auth["admin"][] = "chris" You need to also review the other $auth["admin"][] lines in your MRBS config file to make sure they do what you want. If you have a user logging in from Active Directory or other auth system, you can use the username from that system in an $auth["admin"][] line and it should match it. IE, and Active Directory username called 'dave' could be added with this line: $auth["admin"][] = "dave" That assumes you have the authentication setup correctly for Active Directory. You also need to make sure that your usernames and admin config is after the unset($auth["admin"]); and $unset($auth["user"]); lines, or else your settings won't apply. Hope this helps.

We have some large carpet tiles (about 8 foot x 4 foot). We use them for most large events in our sports hall. I think it probably takes a long time to lay them out. Maybe some large rolls of carpet would work for you?

We have quite a few now, and haven't had any problems, although we've only been running them about a year or 2. We order most of our PCs from viglen and have never had a problem with them supplying ssds, but then we buy our own equipment rather than leasing or whatever. I haven't heard any issues with ssds that would put me off. For normal desktop usage, they are great, and much faster. Even if they are a bit more unreliable, they aren't expensive to replace, and not much more than a standard hard disk. We regularly replace dead hard disks anyway - I don't think ssds will be any worse.

The big cost for us is time. If you have lots of it, you can probably make your selves a nice enough setup, but it would be alot quicker to go with PCs if you already have a good windows based network. There are various tools available to configure and deploy macs, some don't cost much or anything. Deploy studio, munki and reposado are all free. Haven't found a good way of managing preferences yet. I can't for the life of me get our new mac server to hand out preferences properly, so I wouldn't recommend that. It wouldn't be so bad, but the default profile is awful. This all seemed to work (just) until 10.7/10.8, then apple decided to break it all. The lead time on new macs is quite long as well. Most of our suppliers don't seem to keep them in stock, and just order them in when they have to. This is a bit of a problem if they all get stolen mid-term like ours did this year. Can your students cope several weeks without equipment? Much less of an issue if they use PCs. Most security methods won't stop the determined thieves that are going round school at the moment. They took ours out of a 1st floor window, down a ladder. 15 macs, and not a trace of evidence. You should factor in some decent CCTV to cover the rooms, inside and out. Generally you want to make the room into a prison. That's going to cost a lot on its own. If you do go for them, I can recommend your local mac store (or at least our local one). They couldn't help us enough. To be honest, unless you are running mac only software, just don't bother, 'cos the biggest cost is your sanity... You may also find problems with the integration if your windows domain ends in '.local'. I've yet to hear a technical reason or requirement that justifies putting a mac in a school.

One of our ICT teachers discovered an issue on friday that scratch 1 and small basic use the same file extensions (.sb). They also found that files could get corrupted if they were opened in the wrong program. I can't reproduce this corruption though, I can't see how they managed it. Does anyone have any clever ideas to work round this? The only ways I can see are: * Ask users to right click on the file and choose open with. You could argue that that's not particularly hard, but its not a very elegant or reliable solution. * Upgrade to scratch 2 - but this is only web based at the moment. Not ideal. version 2 uses .sb2 * Write a small program to figure out what the file is before opening it in the correct program. I found code on this page to do this: Get Windows to treat files with the same extension differently - Super User I don't really want to have to maintain too many school-specific fixes like that if I can avoid it. I guess we will have to bite the bullet one way or another.

Can you log into the mac with a local admin account after win 7 has broken things? This might help give some clues as to what state the computer is in. I would check things like whether you have a basic network connection running, whether the time is out, whether the dns entry for the computer matches the ip address. I suspect it might be some sort of power saving mode for the network interface, or possibly if your computer names are the same for win 7 and mac os, it might be getting confused.

Another vacancy has opened at my school. Same details as above. Closing date is 14th June 2013. Please click here to apply. Feel free to ask me any questions.

I think metro is still a little buggy and experimental. You're probably best off waiting for service pack 1 before deploying to end users.

I'm pretty sure the 1910's are static routing only. But you can probably change to do most of your routing on the core. I don't think you need dynamic routing on a network of this size, but obviously I don't know your network topology. I wouldn't try to do routing on a 1910 except in an emergency. I don't think its spec'ed to do more than basic routing. I really wouldn't bother putting in 1810s given the price point of a 1910. Are you doing a full refresh, or just replacing/adding a few switches?

Some things I would check are: On your dhcp server, check you havn't run out of addresses. Maybe try just the laptops on their own. On the zone director web interface, see what the clients are doing, and where they are failing. Check the logs on the laptops. Its a bit of a long shot, but you might get some useful info. We had a problem with some of our old laptops where they didn't talk wpa2, only wpa. The network would still show up and try to connect, but would fail. We fixed this with a driver update. Check your authentication is the same on ruckus as on your old system.

I've been pretty happy with the 1910s we've put in recently. We might have different networks with different needs though. I've yet to have a problem with one. Playing devil's advocate, if you are struggling to find solid technical reasons for not using them, is there really a problem? Using ssh instead of telnet shouldn't be a problem from a usage point of view. ssh is quite a bit more secure, and will help if a student manages to connect their own device to the network with wireshark on it. The 1910's have a 'secret' command line mode that can be enabled, but most stuff can be configured via the web interface. I usually only use the serial port to find out the IP address, and then only as a last resort. 1910s support ipv6 with the latest firmware. The interface is a tiny bit clunky to use, but how often do you use it? There is far, far worse on the market. QOS is also supported on the 1910 range. As is a voip vlan. Its listed in the procurve manager docs. How well supported it is I don't know, as I don't use it. The only thing missing is 10Gb support. But we are using nowhere near 1Gb on our backbone, even with 20 cctv cameras on it. I've just realised I've echoed an above post. But anyway - if your network is like ours, then you can't go far wrong with 1910s, I wouldn't go for anything less though. May I ask what the driver is behind new switches if you already have managed ones? What are you hoping to gain? Is it just a speed difference from 1Gb ethernet to the desktop, or do you need a more advanced network? Our network is made up of about 30 switches (with about 10 1910s so far). Three of these are in our server rack doing vmotion, iscsi storage and the main school network. We use an older netgear switch as our core which will be replaced with a higher-end hp switch soon. We have about 1500 students and 170 staff.

We have a cheap HP tower server and QNAP nas box in a cupboard on the other side of the school. We replicate to this every night with veeam, and could bring up enough servers on it to keep some staff working. We also backup to our partner school, but they only host files, we don't have any spare hardware there. When they have virtualised their servers, I might look at adding more ram at both sites so we could help each other out in an emergency. In terms of needing new equipment, I think our disaster recovery plan specifies several days before we could obtain new servers. We also have enough redundancy to cope if we lost an individual vhost.

I suffer from a similar problem, although things like binary and hexadecimal appeal to my warped mind. It can be impossible to learn some stuff, can't it? My knowledge of cisco is probably somewhat out of date, but I would think as long as you can calculate subnet masks for IP v4 and v6 without a calculator/computer, you would be ok. The binary to hex conversion is there so that you can understand whats going on at a low level. IE how does your router take an ip address and a subnet mask and work out the subnet address, and whether an IP address is on the same subnet or not. If its still the same, you will need to be able to do this pretty quickly in the exam. Cisco is much more focused on proving you understand how the technology works, and not just how to configure it for a given scenario. Its one of the reasons why cisco engineers can earn more.

It depends on your data structure and your algorithm. The performance differences on a simple array will be minimal. Then you would want to use whatever makes the code most obvious to the reader, at least in the initial version. Once you have it working, you would use a debugger to find the slow bits and just improve them. When you start using linked lists and tree structures then recursion makes more sense. There are some other mathematical functions where it is also useful such as working out the factorial of a number. In a linked list, or tree, each object points to the next one or more objects. This next bit is from wikipedia: struct node { int data; // some integer data struct node *next; // pointer to another struct node }; Because the struct node data structure is defined recursively, procedures that operate on it can be implemented naturally as recursive procedures. The list_print procedure defined below walks down the list until the list is empty (i.e., the list pointer has a value of NULL). For each node it prints the data element (an integer). In the C implementation, the list remains unchanged by the list_print procedure. void list_print(struct node *list) { if (list != NULL) // base case { printf ("%d ", list->data); // print integer data followed by a space list_print (list->next); // recursive call on the next node } } Performing the above on a linked list with iteration would be slow, and you would probably have some similar code hidden somewhere anyway. Worst case, you might end up recursively going through the list each time you try and print an object. That would be relatively inefficient, see the next code block and imagine calling that in a 'for each' statement for each element in the list/array. Its important to understand the data structures your working on. int list_index(struct node *list, int i) { if (list != NULL) // base case { if (i == 0) { return (list->data); } return list_index(list->next, i - 1); // recursive call on the next node } } int list_length(struct node *list, int i = 0) { if (list != NULL) // base case { return list_length(list->next, i + 1); // recursive call on the next node } else { return i; } } for (int c = list_length(list, 0); 0; c ++) { printf("%d ", list_index(list, c)); }

I've not compared the two personally, but as a ruckus user, I can say you wont be disappointed if you choose it. There are plenty of happy ruckus customers on here.