By using the native System Preferences panel? No, it sure doesn't. But you can write your own firewall rules and load them from the command line or use a 3rd party GUI to configure them. Of course these rules would apply to all programs. To block outgoing connections on a per application basis, you'd have to use Little Snitch
I've never tried the Network Boot feature in the Startup Disk section of System Preferences in OS X. Does this still require OS X to be installed locally?
You can NetBoot a Mac with no hard drive at all. You need a lot of bandwidth though, they always said the clients and server should all be connected to the same 100Mbit switch and the first NetBoot servers came with network cards with 4 100Mbit Ethernet jacks. Under optimal conditions I suppose you could NetBoot a Mac over a 802.11g connection but it would have to be just one Mac using the channel.
It's definitely more efficient, bandwidth-wise for the tablet to be a thin client displaying a terminal window on a base computer. It's also more efficient power-wise because a NetBooted computer is running everything on its own processor whereas a 486 can be a fine terminal services client.
I downloaded the XPSP2BlockerTools.EXE and there are a number of different ways of deploying it but it's simply a new value in the registry. Save the following in a text file ending in.reg and merge it into your registry. In case Slash inserts spaces, there are *no* spaces in these lines.
What if Microsoft bundles a DVD/CD - burning program with LongHorn?
Windows XP already has CD burning capability. Guess what? It's licensed Easy CD Creator code from Roxio. Check the Version info on C:\Program Files\Common Files\Adaptec Shared\CreateCD\CreateCD50.exe (the folder name is left over from when Adaptec owned Easy CD Creator).
but new york city is the most crime ridden city in the USA
No it's not. While the topic at hand is petty crimes, NYC is the safest of the big cities (1 million+ pop.) and I'd guess that the rates for non "index" crimes similar. Here's just one of many URLs found by Google http://www.nycvisit.com/content/index.cfm?pagePkey =1091
I don't wear one either and I'm in NY. I don't have a cel but at work I carry a pager and a PDA. Everywhere else I simply count on there being some form of time displaying device. My car has one and if I need to be somewhere on time, I'm driving there. If I'm going somewhere and knowing the time will be important, I'll bring my PDA. It'll beep me to remind me of my apointments anyway. If I walked a lot or used a bike for transportation I might be inclined to wear a watch. The PDA would not be a convenient time piece while on a bike. Now someone can link to a PDA-as-bike-computer product/project/dream.
Zoneedit.com is also free* and allows you to create TXT records.
*There are limits to zoneedit's free-ness. Basically it's free for fewer than 5 domains and less than 200MB of traffic (200MB is highly unlikely for DNS) but read their policy for details.
1. Provide a webmail service customers can use when they want their domainname on the From: line. Many already provide this but those plans cost a bit more.
2. Provide authenticated SMTP so the customer can use use their own mail program. Many clients support authenticated SMTP and multiple "identities" so a customer can switch between different From: lines & SMTP servers. I think this kind of service is relatively uncommon and providers would run the risk of being labelled as spam sources if their customers had a bad habit of letting their passwords get stolen.
3. Provide a web interface so the customer could update their domain's SPF record. If they switch ISPs (or are just visiting somewhere), they can update the record themselves. This would require the least amount of resources on the webhost's part.
I think what we're going to see is being able to use your domain name on the From: line as another differentiator between webhost pricing tiers. You want to receive mail @domain? That's $X/month? YOu want to also send mail from @domain? That's $X+2/month.
How about all the folks that use forwarding addresses like @alumni.myschool.edu? Or @computer.org?
I think the primary purpose of @alumni addresses is to provide an "eternal" address for *receiving* mail rather than sending it. An individual would advertise their @alumni address in various places such as in their.sig file and maybe use it on a Reply-To: line but not on the From: line.
They used "Set Program Access and Defaults" to remove the IE icon from the Desktop. If they're "leet" maybe they also deleted "C:\Program Files\Internet Explorer\iexplore.exe." Pretty much all of the exploitable code would still exist on the computer in.dlls and other files (iexplore.exe is 89K, you think that's the whole thing?) but most users would be stymied. Until they found a program like WinAmp with a mini-browser that's just using the IE code on the system.
Fact is it remains cheaper (and better, through faster, higher capacity drives) to purchase Apple's 4x250 model and populate the device ourselves with 400GB drives. The extra 250GB drives can be used elsewhere, or sold off to cut costs.
Except Apple doesn't provide you with drive carriers for all the bays and won't sell them to you without a hard drive. Basically, they want to sell you the drives for their price and don't want to support the Xserve RAID with drives from who-knows-where.
It only as one RAID controller. You don't have the option of adding a second, at any price. When the controller fails, you lose data and the RAID goes down.
Frankly, I don't see the failure of chips to be a big issue. Moving parts, sure. And if you're that concerned, you shouldn't count on one storage device anyway. There's always *some* one thing that can fail inside one box.
It doesn't appear to come with any sort of monitoring system that informs you of the health of things like the controller, the power supply, and the fans.
Actually it does have monitoring software but they don't make it obvious. I didn't see anything specifically about fans but the power supplies are redundant and hot swappable.
Finally, it doesn't have a Fibre Channel interface, which means you can't hook it up to your storage area network. A device like this one is only suitable for attaching to a single host... and while I guess there might be folks out there who still do that, they're certainly NOT investing in 3 TB of new disk that won't make the switch to shared storage.
/me raises hand
We don't need shared storage, the data only needs to be accessed from one server. It's an archive, to be written to and read from not that often. Performance is not a big issue, uptime is not an issue. We need a large amount of space, we need to maintain data integrity. We will have two servers with a copy of the data on each, eventually we'll add a third, all in different locations. Our experimental server was started with a 3Ware SATA RAID card and 5 250GB drives in a big server case but we've had horribly bad luck with it (4 of the 5 drives failing for instance) so we're buying our way out of dealing with putting the storage part together.
It wasn't that hard, there's the Gateway 840 2TB Serial-ATA Raid Enclosure. It only holds 12 drives vs. the Xserve RAID's 14 but with 12 250GB drives it's only $7,528 for 3000GB or roughly $2.50/GB. The 840's drives are SATA rather than PATA and the external interface is Ultra320 SCSI vs. the more expensive FiberChannel which also makes it cheaper to own. You could probably get it to be even cheaper by buying fewer drives from Gateway because unlike the Xserve RAID, the 840 comes with drive carriers for all its drive bays. Apple won't sell you drive carriers without drives. You can also get the 840's 3yr warranty extended to 4 hour response in stead of next day *and* it can be extended to 4 or 5 years. Apple won't sell you a warranty beyond 3yrs.
The LaCie Bigger Disk has no RAID capability and the drives are not not hot swappable. Hell, you may not even be able to replace one of the LaCie disks yourself without voiding the warranty.
I'm not familiar with the Granite Digital enclosure but $900 is not a lot to pay for hot swappable IDE drives and hardware RAID 5 (and presumably also 1 and 0, preferably 1+0) on a FireWire interface. There's nothing to install the host, if it was configured as RAID5 with 250GB disks, it would just look like 1 750GB drive. Not so with the Bigger Disk, it looks like 4 separate drives which the OS *may* be able to use as RAID array in software.
I've had a mail.yahoo.com for a long time but I haven't really used it for a long time because A) I don't really need it and B) there is a ton of spam. I hadn't checked it since late March and just logged in to see my new quota. Boy, good thing they increased it because with a 100MB quota I'm only 3001% over. I have a few mail rules to move messages into a "suspect mail" folder (including if my address is not on the To: line) and there are 50,608 messages in there taking up 3,071,003k. I haven't even looked but if there's more than 2 legitimate messages out of the 67 in the Inbox, I'll be surprised. I think the account gets a disproportionate amount of spam because it has a very generic dictionary word for a name and people use it as a fake address.
The Bulk folder is empty even though SpamGuard is set to keep them for a month but that may be because my account has been disabled for being over quota. In the past I'd say SpamGuard got no more than 30% of the spam I receive.
The best part? You can't delete folders with messages in them! You can check a box to delete all the messages on the screen but the screen can't be set to display more than 200 messages at a time.
I've only listened to a little of it but there's a show produced locally (to me) called What the Tech. They have an archive of all their shows. A couple of professors in RIT's Information Technology dept. are involved in its production.
"Geared toward a general audience with an interest in all forms of technology, What the Tech! encourages curiosity and the thirst for 'techknowledge.'"
* Tech News Roundup looks at recent events in the worlds of science and technology with a slightly skewed point of view
* GadgetBoy Reviews examines consumer electronics and computing products
* The Elevator Pitch features local, regional and statewide techno-entrepreneurs as they present their "elevator pitch" and are briefly interviewed
* Tech O' the Future concentrates on technological developments ranging from full home fuel cells and smart cars to nanotechnology and space tourism
* Grey Matters takes a look at the careers of a wild cast of technology characters, past and present
* The Bleeding Edge features ground breaking technology developers from Rochester, Western New York and across the state as they share their innovations
* Nerd Word of the Week, defines techno-nerd slang or real tech/science terms with tongue planted firmly in cheek
Look at the MP3::Info Perl module, you might recognize the author's handle. It reads (and writes) tag info. It's used by the "jukebox" module Apache::MP3 (sample site) to generate pages with track info.
Basically every web jukebox out there does something like this so I'm sure there's plenty of other code available to work from. The mod_perl way is to put SetHandler perl-script then PerlHandler [name of module] in your httpd.conf file so when a URL request falls within that Location or Directory, the perl module handles returning whatever you want it to return.
I know that the U of R is in excess of $30k per year, though, and their student Internet access is a very slow broadband that everyone complains about.
The U of R has at least 2 OC3s (Internet2 might be on a third OC3). ResNet is all 100Mbit switches and I believe they use packet shaping on those networks to keep the P2P traffic to a dull roar (they don't port block them). I'm not on ResNet but I find the University's Internet service to be excellent. If students do complain (I have no reason to believe you), it's because of their classmates misusing the network, not because the University doesn't provide a good service.
Universities often have fat pipes and don't have "closed by default" firewalls. Even if they have the "Windows ports" closed at the Internet borders, there's bound to be other ways in at which point, with a fast worm, it's all over.
16x250GB for $10,500 is $656.25 per disk which is not bad, especially when you take the cache into account.
The Gateway 840 would be $6,549 (if you bought the disks separately) 12x250GB ($545/disk) but that's with only 12 bays and 256MB cache. It uses StorView Storage Management from nStor (the 840 is probably a re-branded version of nStor's NexStor 4700S). Does anyone have any experience with StorView? It only lists RedHat as a supported Linux distro but again I'm wondering if that really matters.
The Apple Xserve RAID would be $12,300 with only 14x250GB ($878/disk) if configured with 1GB cache and a 3yr. warranty.
Of course you and I are in Higher Ed and the Gateway and Apple prices I'm using are retail (Xserve RAID is $783/disk at the higher ed price).
Thanks for the reply. I'm guessing the Excel is the SecurStor 16 SATA RAID and the RaidKing is the RAIDking 827. The Excel site provides some info about their monitoring software, RAIDWatch. RAIDking doesn't say anything on their site about monitoring. What's the point of having redundant disks if there's no reliable way of being notified when one fails?
I wouldn't have a problem with the 2TB limitation, I've been thinking that I'd make each array no bigger than 1TB anyway (or 5 drives as RAID5, whichever is larger).
RAIDking doesn't list prices and Excel doesn't say how many (if any) drives come with their enclosures. Unless their 12 bay model comes with at least 1TB of disk space, they don't fare well, price-wise, against the Gateway 840 RAID enclosure I mentioned in another comment. Based on what I've seen from storage specialty companies like these, I wouldn't be surprised if the price includes zero drives.
Slashdot Mirror
By using the native System Preferences panel? No, it sure doesn't. But you can write your own firewall rules and load them from the command line or use a 3rd party GUI to configure them. Of course these rules would apply to all programs. To block outgoing connections on a per application basis, you'd have to use Little Snitch
I've never tried the Network Boot feature in the Startup Disk section of System Preferences in OS X. Does this still require OS X to be installed locally?
You can NetBoot a Mac with no hard drive at all. You need a lot of bandwidth though, they always said the clients and server should all be connected to the same 100Mbit switch and the first NetBoot servers came with network cards with 4 100Mbit Ethernet jacks. Under optimal conditions I suppose you could NetBoot a Mac over a 802.11g connection but it would have to be just one Mac using the channel.
It's definitely more efficient, bandwidth-wise for the tablet to be a thin client displaying a terminal window on a base computer. It's also more efficient power-wise because a NetBooted computer is running everything on its own processor whereas a 486 can be a fine terminal services client.
What if Microsoft bundles a DVD/CD - burning program with LongHorn?
Windows XP already has CD burning capability. Guess what? It's licensed Easy CD Creator code from Roxio. Check the Version info on C:\Program Files\Common Files\Adaptec Shared\CreateCD\CreateCD50.exe (the folder name is left over from when Adaptec owned Easy CD Creator).
but new york city is the most crime ridden city in the USA
y =1091
No it's not. While the topic at hand is petty crimes, NYC is the safest of the big cities (1 million+ pop.) and I'd guess that the rates for non "index" crimes similar. Here's just one of many URLs found by Google http://www.nycvisit.com/content/index.cfm?pagePke
I don't wear one either and I'm in NY. I don't have a cel but at work I carry a pager and a PDA. Everywhere else I simply count on there being some form of time displaying device. My car has one and if I need to be somewhere on time, I'm driving there. If I'm going somewhere and knowing the time will be important, I'll bring my PDA. It'll beep me to remind me of my apointments anyway. If I walked a lot or used a bike for transportation I might be inclined to wear a watch. The PDA would not be a convenient time piece while on a bike. Now someone can link to a PDA-as-bike-computer product/project/dream.
I was thinking of webhosts that include mail forwarding but not POP3 or IMAP.
Zoneedit.com is also free* and allows you to create TXT records.
*There are limits to zoneedit's free-ness. Basically it's free for fewer than 5 domains and less than 200MB of traffic (200MB is highly unlikely for DNS) but read their policy for details.
I can think of 3 options for a web host.
1. Provide a webmail service customers can use when they want their domainname on the From: line. Many already provide this but those plans cost a bit more.
2. Provide authenticated SMTP so the customer can use use their own mail program. Many clients support authenticated SMTP and multiple "identities" so a customer can switch between different From: lines & SMTP servers. I think this kind of service is relatively uncommon and providers would run the risk of being labelled as spam sources if their customers had a bad habit of letting their passwords get stolen.
3. Provide a web interface so the customer could update their domain's SPF record. If they switch ISPs (or are just visiting somewhere), they can update the record themselves. This would require the least amount of resources on the webhost's part.
I think what we're going to see is being able to use your domain name on the From: line as another differentiator between webhost pricing tiers. You want to receive mail @domain? That's $X/month? YOu want to also send mail from @domain? That's $X+2/month.
How about all the folks that use forwarding addresses like @alumni.myschool.edu? Or @computer.org?
.sig file and maybe use it on a Reply-To: line but not on the From: line.
I think the primary purpose of @alumni addresses is to provide an "eternal" address for *receiving* mail rather than sending it. An individual would advertise their @alumni address in various places such as in their
They used "Set Program Access and Defaults" to remove the IE icon from the Desktop. If they're "leet" maybe they also deleted "C:\Program Files\Internet Explorer\iexplore.exe." Pretty much all of the exploitable code would still exist on the computer in .dlls and other files (iexplore.exe is 89K, you think that's the whole thing?) but most users would be stymied. Until they found a program like WinAmp with a mini-browser that's just using the IE code on the system.
Fact is it remains cheaper (and better, through faster, higher capacity drives) to purchase Apple's 4x250 model and populate the device ourselves with 400GB drives. The extra 250GB drives can be used elsewhere, or sold off to cut costs.
Except Apple doesn't provide you with drive carriers for all the bays and won't sell them to you without a hard drive. Basically, they want to sell you the drives for their price and don't want to support the Xserve RAID with drives from who-knows-where.
Frankly, I don't see the failure of chips to be a big issue. Moving parts, sure. And if you're that concerned, you shouldn't count on one storage device anyway. There's always *some* one thing that can fail inside one box.
It doesn't appear to come with any sort of monitoring system that informs you of the health of things like the controller, the power supply, and the fans.
Actually it does have monitoring software but they don't make it obvious. I didn't see anything specifically about fans but the power supplies are redundant and hot swappable.
Finally, it doesn't have a Fibre Channel interface, which means you can't hook it up to your storage area network. A device like this one is only suitable for attaching to a single host... and while I guess there might be folks out there who still do that, they're certainly NOT investing in 3 TB of new disk that won't make the switch to shared storage.
We don't need shared storage, the data only needs to be accessed from one server. It's an archive, to be written to and read from not that often. Performance is not a big issue, uptime is not an issue. We need a large amount of space, we need to maintain data integrity. We will have two servers with a copy of the data on each, eventually we'll add a third, all in different locations. Our experimental server was started with a 3Ware SATA RAID card and 5 250GB drives in a big server case but we've had horribly bad luck with it (4 of the 5 drives failing for instance) so we're buying our way out of dealing with putting the storage part together.
Sounds like a pretty dumbass maneuver to me.
Well, your mother wears combat boots, so there.It wasn't that hard, there's the Gateway 840 2TB Serial-ATA Raid Enclosure. It only holds 12 drives vs. the Xserve RAID's 14 but with 12 250GB drives it's only $7,528 for 3000GB or roughly $2.50/GB. The 840's drives are SATA rather than PATA and the external interface is Ultra320 SCSI vs. the more expensive FiberChannel which also makes it cheaper to own. You could probably get it to be even cheaper by buying fewer drives from Gateway because unlike the Xserve RAID, the 840 comes with drive carriers for all its drive bays. Apple won't sell you drive carriers without drives. You can also get the 840's 3yr warranty extended to 4 hour response in stead of next day *and* it can be extended to 4 or 5 years. Apple won't sell you a warranty beyond 3yrs.
Anyhow, the point is hardware RAID *costs* but in many ways there is no substitute.
Yes, FW Depot's eRAID System looks very interesting.
The LaCie Bigger Disk has no RAID capability and the drives are not not hot swappable. Hell, you may not even be able to replace one of the LaCie disks yourself without voiding the warranty.
I'm not familiar with the Granite Digital enclosure but $900 is not a lot to pay for hot swappable IDE drives and hardware RAID 5 (and presumably also 1 and 0, preferably 1+0) on a FireWire interface. There's nothing to install the host, if it was configured as RAID5 with 250GB disks, it would just look like 1 750GB drive. Not so with the Bigger Disk, it looks like 4 separate drives which the OS *may* be able to use as RAID array in software.
I've had a mail.yahoo.com for a long time but I haven't really used it for a long time because A) I don't really need it and B) there is a ton of spam. I hadn't checked it since late March and just logged in to see my new quota. Boy, good thing they increased it because with a 100MB quota I'm only 3001% over. I have a few mail rules to move messages into a "suspect mail" folder (including if my address is not on the To: line) and there are 50,608 messages in there taking up 3,071,003k. I haven't even looked but if there's more than 2 legitimate messages out of the 67 in the Inbox, I'll be surprised. I think the account gets a disproportionate amount of spam because it has a very generic dictionary word for a name and people use it as a fake address.
The Bulk folder is empty even though SpamGuard is set to keep them for a month but that may be because my account has been disabled for being over quota. In the past I'd say SpamGuard got no more than 30% of the spam I receive.
The best part? You can't delete folders with messages in them! You can check a box to delete all the messages on the screen but the screen can't be set to display more than 200 messages at a time.
"Geared toward a general audience with an interest in all forms of technology, What the Tech! encourages curiosity and the thirst for 'techknowledge.'"
"Virus" ($0.01)
"Daryl M." (5 memberships for $.01)
Look at the MP3::Info Perl module, you might recognize the author's handle. It reads (and writes) tag info. It's used by the "jukebox" module Apache::MP3 (sample site) to generate pages with track info.
Basically every web jukebox out there does something like this so I'm sure there's plenty of other code available to work from. The mod_perl way is to put SetHandler perl-script then PerlHandler [name of module] in your httpd.conf file so when a URL request falls within that Location or Directory, the perl module handles returning whatever you want it to return.
I know that the U of R is in excess of $30k per year, though, and their student Internet access is a very slow broadband that everyone complains about.
The U of R has at least 2 OC3s (Internet2 might be on a third OC3). ResNet is all 100Mbit switches and I believe they use packet shaping on those networks to keep the P2P traffic to a dull roar (they don't port block them). I'm not on ResNet but I find the University's Internet service to be excellent. If students do complain (I have no reason to believe you), it's because of their classmates misusing the network, not because the University doesn't provide a good service.
Universities often have fat pipes and don't have "closed by default" firewalls. Even if they have the "Windows ports" closed at the Internet borders, there's bound to be other ways in at which point, with a fast worm, it's all over.
Mozilla
Edit | Preferences
Advanced | Scripts & Plugins
Allow scripts to:
[uncheck] Move or resize existing windows
[uncheck] Raise or lower windows
Click OK
All done!
16x250GB for $10,500 is $656.25 per disk which is not bad, especially when you take the cache into account.
The Gateway 840 would be $6,549 (if you bought the disks separately) 12x250GB ($545/disk) but that's with only 12 bays and 256MB cache. It uses StorView Storage Management from nStor (the 840 is probably a re-branded version of nStor's NexStor 4700S). Does anyone have any experience with StorView? It only lists RedHat as a supported Linux distro but again I'm wondering if that really matters.
The Apple Xserve RAID would be $12,300 with only 14x250GB ($878/disk) if configured with 1GB cache and a 3yr. warranty.
Of course you and I are in Higher Ed and the Gateway and Apple prices I'm using are retail (Xserve RAID is $783/disk at the higher ed price).
Thanks for the reply. I'm guessing the Excel is the SecurStor 16 SATA RAID and the RaidKing is the RAIDking 827. The Excel site provides some info about their monitoring software, RAIDWatch. RAIDking doesn't say anything on their site about monitoring. What's the point of having redundant disks if there's no reliable way of being notified when one fails?
I wouldn't have a problem with the 2TB limitation, I've been thinking that I'd make each array no bigger than 1TB anyway (or 5 drives as RAID5, whichever is larger).
RAIDking doesn't list prices and Excel doesn't say how many (if any) drives come with their enclosures. Unless their 12 bay model comes with at least 1TB of disk space, they don't fare well, price-wise, against the Gateway 840 RAID enclosure I mentioned in another comment. Based on what I've seen from storage specialty companies like these, I wouldn't be surprised if the price includes zero drives.