you wouldn't remove a time zone patch, you would apply a new one that would change it back. once something is in the time zone data, it will be there for all of time. In the future, you never know when you might need to translate from the current time to the beginning of the dark ages (Around April 2006).
I don't think you work in a datacenter then. Once our servers are configured and running, there should NEVER be a reason to reboot them. In fact, when we have an odd server failure, the server usually has been up since it was first put in the datacenter. We are just now getting failures of systems put up in the late 1990s. Sure we have new systems as well, but there are critical systems still running old hardware because it works and a reboot is too much of an outage to take.
If you don't think it could be inconvenient to patch and reboot hundreds or thousands of servers, I don't think you are looking at the whole picture.
That vague possibility of some embedded systems being thrown away include, vcrs (good riddance), DVRs, watches, GPS devices, car computers, phone systems, just about all networking gear, etc. These are things that will either need a software upgrade or a hardware upgrade within the next 3 months if they are to give the correct time.
actually, an NTP server isn't going to help you. NTP server give out GMT/UTC already so they won't even change. Your computer relies on time zone rules to relate your local computer time to UTC. So, even if you are using an NTP server, you're still going to be generating the wrong time come March if you live in one of the affected areas and havn't updated your time zone rules.
Virtualization is probably best used in test environments. Copy a normalized disk image and run from the copy to see how the software interacts with the hardware or operating system. When you're done testing, no need to mess with any hardware, just delete the disk image.
It should also be good for those environments that do not require much performance. if you are running a specialized java app and you consolidate 2 hardware solutions into a virtualized solution, you might need to have 2 different java compilers installed. You wouldn't want to join these two java applications onto the same logical hardware, but you can put them on the same physical hardware.
If you don't mind going out to the internet on your own to find RPM packages with minimal extra package requirements, then RPM is a great package installation program.
YUM is good at going to the internet for you and getting the correct package and some of the dependencies.
If there is a problem though......seriously, good luck fixing it. If you're a home user, this probably won't affect you too much. If you are a corporate user with 10, 20, 1000, or more servers, this is a horrible nightmare.
1. the content copyright holders aren't the artists, it's the riaa/mpaa. 2. what happens if someone DOSes a MySpace page and causes financial harm to the person that had it posted on their page? 3. What happens if someone comments and posts a video? Who pays for that?
dvd has other distinct advantages, the "not having to rewind" feature is one of the largest. Another would be the "i'm small and you can stack me easily." Another would be, "you can edit your own home movies on a computer and burn multiple copies of your kids onto a dvd."
The quality change is important in the dvd/vhs argument, but it's not the only improvement.
HDTV will become important when the average person cares. Right now it's only seen as a selling tool for the electronics sales person. Sure you can get HD content, but in most cases people watch SD.
Can the article be any more condescending? Why try to reinforce the 3rd world stereotype. There are cities, with cars, buildings, offices, airports, etc in just about every 3rd world country.
What about those families that are cram packed into an apartment and barely make ends meet?
Even if one of them ends up in a hut like the article suggests, this will probably be a turning point in their culture, much like a renaissance.
Why even keep logs? There are plenty of other ways to track down problems and see how much your service is used. Logging is nothing but hassle. I've worked in the ISP industry for 8 years now, and every chance I get I make logrotate keep minimal logs.
I don't think you understand how mail servers work. Spamhaus is used as a smtp filter, so when an ip connects, the smtp server looks up the message in the Spamhaus dns black list. If the ip address is present, it disconnects the ip from the smtp server.
that means the spam doesn't have to touch other parts of the mail system.
If you are doing 100,000 messages per day, and spamhaus is filtering 75% of the connections, that means if spamhaus is turned off, you will probably be somewhere around 400,000. Most mail servers are scaled with around 50% over capacity. Good luck being able to handle the load.
common to whom? The only thing it's used for these days is cheesy animated banner ads, but that's quickly being replaced with flash and java stuff. There are some applications like transparency that people still use it for, but professional web designers would probably be required to put a little more thought into their work.
OC3 and greater are probably not in 98% of the companies right now. Most of these companies probably have a weak DSL line with a linksys device. As companies get larger, they move up to T1 and need new hardware, it's probably a shock to have to pay the Cisco tax. What's the price of a 7200VXR class of router these days? If you could provide the same service with an old PC and a few PCI cards at 1/10th the price, you just made a nice cut-rate market for yourself.
in other words, your grandma will have the wrong time on her windows 2000 computer for 6 weeks out of the year.
Exactly. most of these older systems have NEVER been rebooted. Rebooting them would cause a substantial amount of them to fail for various reasons.
I think with zic, patching java, and restarting the affected time-sensitive processes (syslog, cron, java), it should be possible to avoid rebooting.
you wouldn't remove a time zone patch, you would apply a new one that would change it back. once something is in the time zone data, it will be there for all of time. In the future, you never know when you might need to translate from the current time to the beginning of the dark ages (Around April 2006).
we're trying to decide if we want to upgrade java to the latest release or patch.
either is a horrible choice.
I don't think you work in a datacenter then. Once our servers are configured and running, there should NEVER be a reason to reboot them. In fact, when we have an odd server failure, the server usually has been up since it was first put in the datacenter. We are just now getting failures of systems put up in the late 1990s. Sure we have new systems as well, but there are critical systems still running old hardware because it works and a reboot is too much of an outage to take.
If you don't think it could be inconvenient to patch and reboot hundreds or thousands of servers, I don't think you are looking at the whole picture.
That vague possibility of some embedded systems being thrown away include, vcrs (good riddance), DVRs, watches, GPS devices, car computers, phone systems, just about all networking gear, etc. These are things that will either need a software upgrade or a hardware upgrade within the next 3 months if they are to give the correct time.
actually, an NTP server isn't going to help you. NTP server give out GMT/UTC already so they won't even change. Your computer relies on time zone rules to relate your local computer time to UTC. So, even if you are using an NTP server, you're still going to be generating the wrong time come March if you live in one of the affected areas and havn't updated your time zone rules.
Virtualization is probably best used in test environments. Copy a normalized disk image and run from the copy to see how the software interacts with the hardware or operating system. When you're done testing, no need to mess with any hardware, just delete the disk image.
It should also be good for those environments that do not require much performance. if you are running a specialized java app and you consolidate 2 hardware solutions into a virtualized solution, you might need to have 2 different java compilers installed. You wouldn't want to join these two java applications onto the same logical hardware, but you can put them on the same physical hardware.
It's like your comment was written in 1999 and you just now posted it.
If you don't mind going out to the internet on your own to find RPM packages with minimal extra package requirements, then RPM is a great package installation program.
YUM is good at going to the internet for you and getting the correct package and some of the dependencies.
If there is a problem though......seriously, good luck fixing it. If you're a home user, this probably won't affect you too much. If you are a corporate user with 10, 20, 1000, or more servers, this is a horrible nightmare.
stupid for 2 reasons:
1. the content copyright holders aren't the artists, it's the riaa/mpaa.
2. what happens if someone DOSes a MySpace page and causes financial harm to the person that had it posted on their page?
3. What happens if someone comments and posts a video? Who pays for that?
unless the phone is searching for a network, or downloading your e-mail, or anything else that uses the network.
You can also get them close to a baby monitor. You can then hear each packet or stream of packets.
and also if they are letting the government listen in without warrants, and violating the phone owner's right to privacy.
dvd has other distinct advantages, the "not having to rewind" feature is one of the largest. Another would be the "i'm small and you can stack me easily." Another would be, "you can edit your own home movies on a computer and burn multiple copies of your kids onto a dvd."
The quality change is important in the dvd/vhs argument, but it's not the only improvement.
HDTV will become important when the average person cares. Right now it's only seen as a selling tool for the electronics sales person. Sure you can get HD content, but in most cases people watch SD.
is a huge Word .doc
Can the article be any more condescending? Why try to reinforce the 3rd world stereotype. There are cities, with cars, buildings, offices, airports, etc in just about every 3rd world country.
What about those families that are cram packed into an apartment and barely make ends meet?
Even if one of them ends up in a hut like the article suggests, this will probably be a turning point in their culture, much like a renaissance.
I'm glad they think only 1% would classify as porn.
Why even keep logs? There are plenty of other ways to track down problems and see how much your service is used. Logging is nothing but hassle. I've worked in the ISP industry for 8 years now, and every chance I get I make logrotate keep minimal logs.
I don't think you understand how mail servers work. Spamhaus is used as a smtp filter, so when an ip connects, the smtp server looks up the message in the Spamhaus dns black list. If the ip address is present, it disconnects the ip from the smtp server.
that means the spam doesn't have to touch other parts of the mail system.
If you are doing 100,000 messages per day, and spamhaus is filtering 75% of the connections, that means if spamhaus is turned off, you will probably be somewhere around 400,000. Most mail servers are scaled with around 50% over capacity. Good luck being able to handle the load.
no, you use spamhaus as a black list, so connections to your mail server would be dropped if they are on the list.
Therefore, the mail server doesn't have to process the spam.
take out the spamhaus, and the mail server will have to process the spam.
common to whom? The only thing it's used for these days is cheesy animated banner ads, but that's quickly being replaced with flash and java stuff. There are some applications like transparency that people still use it for, but professional web designers would probably be required to put a little more thought into their work.
Too bad they basically killed the format.
Everything runs fine with jpg, java, javascript, and flash.
It's not blackmail if a corporation does it.
Oh please, all the RIAA/MPAA/etc need to do is have one private sentence with the judge:
"Your honor, your home computer came up in our search, so if this case doesn't go well, we'll be searching your hard drive next."
The hucking chicken would like a word with you.
OC3 and greater are probably not in 98% of the companies right now. Most of these companies probably have a weak DSL line with a linksys device. As companies get larger, they move up to T1 and need new hardware, it's probably a shock to have to pay the Cisco tax. What's the price of a 7200VXR class of router these days? If you could provide the same service with an old PC and a few PCI cards at 1/10th the price, you just made a nice cut-rate market for yourself.