DNS is a resource locating service. For example, SRV records are a nicer way of autoconfiging your network.
With SRV records, you say service.domain = port at host. You could do a dig for ldap.slashdot.org and findout that the ldap server is on port 389 at directory.slashdot.org.
This is a slight extension of this. I don't know the exact implementation, but you could have a zone file that looks like:
'file being served'.bt.slashdot.org SRV 0 0 PORT 'seed host'
You can have multiple SRV's per resource and load balance between them.
DNS is currently used for stuff like this all over the place. We already have the technology. IXFR means we can transfer just the changes in the zones when there are updates.
Last time I checked, DNS is not over loaded and will scale to handle this. Even it 50% of the internet uses BT over DNS, 100% of the internet uses DNS for email, web and so forth. Every time an email is delivered, there are at least 6-10 DNS queries.
Even cheaper -- install redhat or some other linux and have it start rdesktop as the window manager -- you'll get a windows login every time you hit ctrl-alt-backspace...
Actually, the keyboard map applies after they log in (well, if you set it in their profile) -- so they will be able to log in fine, but after that they'll be trying new keyboards all day long.
We have an application kicking around the office. Whenever a new guy starts, we install it on his computer. What does it do?
Well, every 60 seconds or so, it locks up keyboard and mouse input for a half a second. It makes it seem like your computer is locking up and swapping and what have you.
Oh man, do people go nuts. They start shutting down services and killing applications while everyone laughs at them..
The technologies they are talking about are tradionally MAN/WAN based. You'd see this sort of stuff in a POP or colo center. Consider this simplified view:
Each machine would plug into a gigabit switch. Let's say there are 24 of these per switch. The gigabit switch would then uplink to a core switch at 4GB. There could be anywhere from 1 to 300 of these. The core switch would have multiple 10GB or faster uplinks to various ISPs for peering.
When all is said in done you have a tonne of aggregate bandwidth being used. Of course each server isn't going to push more then a couple hundred megs a second, but all of them combined will use a lot more bandwidth.
By that logic, every installer is straightforward and and elegant once you get used to it.
Sometimes, just sometimes, GUI solutions work better then the command line version.
I can read shell and program quite a bit in it. I don't know about you, but I use vi with color highlighting to make my job easier. It makes things clearer to understand and easier to follow.
Yes, because it isn't colour coded. It isn't straight forward. With redhat I know what is happening in the boot up process. It is very easy (chkconfig) to change it.
As far as centralized configuration goes, if you've ever used authconfig to set up LDAP authentication for PAM, you'll know what I'm talking about. I change one and a half screens with my LDAP configuration and the whole server used LDAP for authentication and authorization.
RedHat stripped things like LVS out of the newer RH8.0 kernels. Is it within fedora's charter to 'replace' these things as well, or are they only managing what they add in?
I'm a big redhat fan, I think the design and layout of the distro is very intelligent and it works very well. It's clear and makes sense.
Debian is a nightmare to me. It's very hard to diagnose problems during boot up and there isn't very much centralized configuration.
Not to mention, the distro does not work out of the box. On just about every installation I've performed, there are dependency failures during install. There's a huge amount of legacy crap in the package cluttered lists which should be removed.
I run mid-range x86 hardware to handle our loads. The goal is to keep costs down and paying near $1K for linux licensing is unrealistic. Neither is switching to debian.
I'd like to see a community based effort to make the 'end user' redhat releases usable for the small/medium business crowd.
Sadly, GPO's are the most retarded idea MS ever developed.
There is no way to debug what you're doing -- as your directory gets older and more complex, things will get ugly. You'll have no idea why people can change their password when they're logged in, but not while they are logging in and prompt to..
Actually, it does exist and it is called SUS. It is free (if you already own a win2k server license).
Let me just say, SUS sucks ass.
Microsoft's systems of GPO's makes it pretty useless -- you need to set GPO's for hosts to use your SUS servers, so if your domain has any divergence from the stock GPO's there is a good chance it isn't going to work and it will be impossible to debug in less than a month.
I believe there was a giant thread about it on focus-ms.
The short answer is buy some layer three switches with gbics (Extreme makes some nice stuff that I would recommend, but you can always stick with cisco too).
The long answer is that if you haven't done this before you better get some consulting help. Chances are you are talking about a ring topology and are going to be linking sites with different networks.
Perhaps you have telco supplied networks for each office hooked up over DSL or T1. If that's the case, have fun getting routing working without having the telco people disconnect you. Good luck reconfiguring the telco routers for that matter.
Routing complex networks is tough. Do you already have VPN's interconnecting these sites? Are you going to be introducing redundant routes? How are you going to manage these routes? IOS can suck if you've never seen how to configure routing processes. Routing software is also complex. Ripv2 is about as simple as it gets and it doesn't offer much control over which route you take -- the only metric is hop count. OSPF has design guides as big as phone books.
If you have a bunch of nats at your different locations, do the networks overlap? Are you going to have to renumber your networks?
If you are just playing in your spare time, you won't be able to do this for under a few grand. Fibre connections are generally not cheap. If you're lucky you could put a few fibre nics into a couple of linux boxes, but I don't foresee those nics being under $400 each.
If this is to be a business network, do it right from the start or you'll make yourself look stupid. People expect the stuff they don't understand to just work. There will be very little tolerance if services are going up and down and your fibre links are to blame.
Yes, the wrong problem. But since win9x is still around, there is obviously other issues involved.
In this situation, I would present the issues and say something like
"Windows 98 is a huge problem and is really messing things up. I can use gpo's, SMS, Zenworks, the chain tool etc etc etc to update the winnt based machines. We can also fully secure the network with the nt technology.
"Windows 9x is a security issue on our network and it is creating far more work for us. You know about the issues now and we have shown you possible solutions. Please make a decision."
Now it is into your management's hands and not yours.
I would equiate a professional chauffeur to a web designer in this crazy hypothetical world.
IANAGM (I am not a garbage man), but I'm pretty sure you need a higher class license to drive a garbage truck. You'd probably need your air break cert as well.
A garbage man could call himself a truck driver then.
In reality, most people who are sysadmins could do netadmin work and vice versa.
Re:asside from the sarcasm
on
The Be Lives!
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· Score: 2
Try a mirror.. Click on the first link and scroll down a bit.
I'm not too sure why a link to a single mirror was posted.
What is the advantage to running a 64bit web server? From what I've heard and read, pointers are still pointers and registers are still registers. I don't really see any area where a normal webserver would benefit.
In the webservers I run, most of the data that gets delivered is pretty small and most of the mathematically calculations can be done well within 32bits.
Slashdot Mirror
DNS is a resource locating service. For example, SRV records are a nicer way of autoconfiging your network.
With SRV records, you say service.domain = port at host. You could do a dig for ldap.slashdot.org and findout that the ldap server is on port 389 at directory.slashdot.org.
This is a slight extension of this. I don't know the exact implementation, but you could have a zone file that looks like:
'file being served'.bt.slashdot.org SRV 0 0 PORT 'seed host'
You can have multiple SRV's per resource and load balance between them.
DNS is currently used for stuff like this all over the place. We already have the technology. IXFR means we can transfer just the changes in the zones when there are updates.
Last time I checked, DNS is not over loaded and will scale to handle this. Even it 50% of the internet uses BT over DNS, 100% of the internet uses DNS for email, web and so forth. Every time an email is delivered, there are at least 6-10 DNS queries.
DNS will not be bogged down.
Then again, revolution implies an attempt at change and then ending up back at the start. Think 'revolve'.
Even cheaper -- install redhat or some other linux and have it start rdesktop as the window manager -- you'll get a windows login every time you hit ctrl-alt-backspace ...
Actually, the keyboard map applies after they log in (well, if you set it in their profile) -- so they will be able to log in fine, but after that they'll be trying new keyboards all day long.
:)
Believe me, I've seen it
We have an application kicking around the office. Whenever a new guy starts, we install it on his computer. What does it do?
Well, every 60 seconds or so, it locks up keyboard and mouse input for a half a second. It makes it seem like your computer is locking up and swapping and what have you.
Oh man, do people go nuts. They start shutting down services and killing applications while everyone laughs at them..
Congratulations on the LAN! Is it a boy or a girl?
The technologies they are talking about are tradionally MAN/WAN based. You'd see this sort of stuff in a POP or colo center. Consider this simplified view:
Each machine would plug into a gigabit switch. Let's say there are 24 of these per switch. The gigabit switch would then uplink to a core switch at 4GB. There could be anywhere from 1 to 300 of these. The core switch would have multiple 10GB or faster uplinks to various ISPs for peering.
When all is said in done you have a tonne of aggregate bandwidth being used. Of course each server isn't going to push more then a couple hundred megs a second, but all of them combined will use a lot more bandwidth.
By that logic, every installer is straightforward and and elegant once you get used to it.
Sometimes, just sometimes, GUI solutions work better then the command line version.
I can read shell and program quite a bit in it. I don't know about you, but I use vi with color highlighting to make my job easier. It makes things clearer to understand and easier to follow.
Yes, because it isn't colour coded. It isn't straight forward. With redhat I know what is happening in the boot up process. It is very easy (chkconfig) to change it.
As far as centralized configuration goes, if you've ever used authconfig to set up LDAP authentication for PAM, you'll know what I'm talking about. I change one and a half screens with my LDAP configuration and the whole server used LDAP for authentication and authorization.
RedHat stripped things like LVS out of the newer RH8.0 kernels. Is it within fedora's charter to 'replace' these things as well, or are they only managing what they add in?
I'm a big redhat fan, I think the design and layout of the distro is very intelligent and it works very well. It's clear and makes sense.
Debian is a nightmare to me. It's very hard to diagnose problems during boot up and there isn't very much centralized configuration.
Not to mention, the distro does not work out of the box. On just about every installation I've performed, there are dependency failures during install. There's a huge amount of legacy crap in the package cluttered lists which should be removed.
I run mid-range x86 hardware to handle our loads. The goal is to keep costs down and paying near $1K for linux licensing is unrealistic. Neither is switching to debian.
I'd like to see a community based effort to make the 'end user' redhat releases usable for the small/medium business crowd.
If you can't fix it with a hammer, throw it out!
GPO's are the way to do it.
Sadly, GPO's are the most retarded idea MS ever developed.
There is no way to debug what you're doing -- as your directory gets older and more complex, things will get ugly. You'll have no idea why people can change their password when they're logged in, but not while they are logging in and prompt to..
out
On behalf of myself and all of the other slashdot idiots, I apologize. Sadly, not everyone is as educated or intelligent as you are.
Wow, get off yourself buddy. Slashdot is not a mensa meeting. In real life, people smile when someone makes a joke.
btw, could you imagine a beowulf cluster of these?
Rudy Rucker once wrote a series of books that ended in *ware. There was software, wetware, freeware and I think a few others.
I really liked them, but as one other poster noted, if they were great, they wouldn't be out of print.
out.
Actually, it does exist and it is called SUS. It is free (if you already own a win2k server license).
Let me just say, SUS sucks ass.
Microsoft's systems of GPO's makes it pretty useless -- you need to set GPO's for hosts to use your SUS servers, so if your domain has any divergence from the stock GPO's there is a good chance it isn't going to work and it will be impossible to debug in less than a month.
I believe there was a giant thread about it on focus-ms.
Am I the only one who things that "Red Rocket, Red Rocket!" would have been a better title for this posting?
That's all.
Actually, I didn't see that post. If I would have read it first, I probably wouldn't have posted or added a comment to it.
The long answer is that if you haven't done this before you better get some consulting help. Chances are you are talking about a ring topology and are going to be linking sites with different networks.
Perhaps you have telco supplied networks for each office hooked up over DSL or T1. If that's the case, have fun getting routing working without having the telco people disconnect you. Good luck reconfiguring the telco routers for that matter.
Routing complex networks is tough. Do you already have VPN's interconnecting these sites? Are you going to be introducing redundant routes? How are you going to manage these routes? IOS can suck if you've never seen how to configure routing processes. Routing software is also complex. Ripv2 is about as simple as it gets and it doesn't offer much control over which route you take -- the only metric is hop count. OSPF has design guides as big as phone books.
If you have a bunch of nats at your different locations, do the networks overlap? Are you going to have to renumber your networks?
If you are just playing in your spare time, you won't be able to do this for under a few grand. Fibre connections are generally not cheap. If you're lucky you could put a few fibre nics into a couple of linux boxes, but I don't foresee those nics being under $400 each.
If this is to be a business network, do it right from the start or you'll make yourself look stupid. People expect the stuff they don't understand to just work. There will be very little tolerance if services are going up and down and your fibre links are to blame.
Yes, the wrong problem. But since win9x is still around, there is obviously other issues involved.
In this situation, I would present the issues and say something like
"Windows 98 is a huge problem and is really messing things up. I can use gpo's, SMS, Zenworks, the chain tool etc etc etc to update the winnt based machines. We can also fully secure the network with the nt technology.
"Windows 9x is a security issue on our network and it is creating far more work for us. You know about the issues now and we have shown you possible solutions. Please make a decision."
Now it is into your management's hands and not yours.
I use SpamAssassin on our Qmail server using Qmail-Scanner. Works great. Out of the box it catches 95% of my spam.
All I need to do is set up a few outlook rules to parse the headers it places. Everyone else in the office seems to enjoy its results as well.
I would equiate a professional chauffeur to a web designer in this crazy hypothetical world.
IANAGM (I am not a garbage man), but I'm pretty sure you need a higher class license to drive a garbage truck. You'd probably need your air break cert as well.
A garbage man could call himself a truck driver then.
In reality, most people who are sysadmins could do netadmin work and vice versa.
Try a mirror.. Click on the first link and scroll down a bit.
I'm not too sure why a link to a single mirror was posted.
You're missing the point..
Ever try to update a docbook document that you exported to PDF?
What is the advantage to running a 64bit web server? From what I've heard and read, pointers are still pointers and registers are still registers. I don't really see any area where a normal webserver would benefit.
In the webservers I run, most of the data that gets delivered is pretty small and most of the mathematically calculations can be done well within 32bits.
Am I an ignorant fool?
Quantify faster...
Access times would be faster. It would take less time to find the data on the drive -- it would not have to seek.
Latency would be the same though.