Switching from Win2K (say) to XP on every desktop obviously carries a cost (a few hundred dollarsper desktop). However, switching to Linux will require retraining of every member of staff plus some loss of productivity while they get used to things like Open Office etc. Plus there will have to be a big consulting project to make sure that all the apps they use can be easily ported or replaced. Plus you have to retrain the sys admins and support staff.
It has been said "place your wireless network outside the firewall", but I think this is only any good if there is also a firewall between the wireless LAN and the Internet too. Otherwise all the PCs on the wireless LAN are weak spots for a cracker. Compromise a box which has a VPN connection to the corporate LAN and you are effectively inside it.
I think the same argument applies to any type of VPN connection (such as users at home on a DSL or dial-up) unless all traffic from that box is directed through the VPN.
Apart from all the other reasons given above, it is also much easier to snoop a wireless lan than an ordinary lan since your laptop probably comes with all the necessary hardware built in (i.e. wireless card). To snoop a normal ethernet you probably need some sort of really expensive radio receiver and software (well expensive by comparison with a wavelan card).
Today I was on a training course at a major software supplier which shall remain nameless for reasons to be discussed below.
Unfortunately there was no internet access in the training room
Fortunately my Mac told me there was a wireless lan.
Unfortunately it was encrypted
Fortunately the password needed was the name of the company
Unfortunately there was no DHCP server so I'll have to guess an IP address, router and DNS server in order to get arrested for unauthorised use of their LAN.
But the main thing was, my first attempt at social engineering worked.
Speaking as a man I can tell you that men *never* carry pens about and are therefore more desperate to con some poor sucker at the station with a fake password.
The first thing a mail server should do after connecting to another mail server is issue a HELO or EHLO command e.g:
EHLO myhost.mydomain.com
You can easily check to see that this matches the DNS name of the incoming connection. Note that this DNS name is completely independent of the domain in the address in the MAIL FROM: command so it's not a problem for servers hosting multiple domains.
Nice idea, but it would mean that your inbound and outbound mail server(s) both have to have the same IP address.
It would also break the situation which I am in whereby I send my outbound mail through the easynet SMTP server no matter which of the three domains I own it comes from. This is necessary because when I'm dialled into easynet, I can only relay my outbound mail through its servers (the other servers would see me as an external connection trying to SPAM).
Re:Marketting stealing technical definitions
on
How Broad is Broadband?
·
· Score: 2, Interesting
Firstly, it wasn't Earth that they came from, it was Golgafrincham. The middle ship actually *landed* (crashed) on Earth. Secondly, it wasn't marketeers and politicians, it was the useless middle stratum of society including advertising execs, hair dressers, marketeers, estate agents, telephone sanitisers and marketeers. Thirdly, it turned out to be not such a good move as - some years later - the remaining population were all wiped out tragically by a virulent disease contracted from dirty telephones.
Did they actually stop the war? The word "power" suggests to me the ability to actually have an effect on events. Super-piss-in-the-wind seems more accurate to me.
Red eye is caused by the light of the flash unit being reflected off the retina of the eye of the subject. The only reason it happens is because the flash unit of many consumer cameras is very close to the lens. All you need is a flash that is mounted or held away from the camera lens. Any professional can eliminate red eye entirely without image manipulation.
I am not a scientist either, but I would imagine that the problem lies in your assumption that the process of the water being absorbed by the rag at the bottom and then being transferred to the top is cost free (in energy terms). My guess would be that in order for water molecules to get from the bottom of the rag to the top they must cool down a bit.
If your hypothetical system were totally isolated, ie no heat transfer from outside to in, if you could keep the drops going and you were taking energy out from your turbine, I think the liquid would eventually freeze. However, you'll probably find that the rag reaches some sort of wetness equilibrium and the drops will stop.
The bomb example was just an example. There's a major difference between the outlook of the British and the Germans. Basically: we didn't start it (to paraphrase Mr Cleese). And we were on the winning side.
A lot of people suffered in very nasty ways in the Second World War and it all comes down to the political ambition of one man (from Austria), but it rubs off on the country he was leading at the time whose people went along with him for whatever reason. If I was a German I'd do everything in my power to avoid the slightest hint of any association with what happened in WW2.
According to American and British officials, Patriot missiles intercepted two Scud-type missiles over Kuwait.
"Scud" is now used (in this country, the UK) to mean any Iraqi missile capable of targetting a near by foreign country but not necessarily reliable enough to hit the city it was aimed at. In a technical sense it is a particular type of Soviet (?) missile sold to the Iraqis a long time ago.
No, there is information in the GPS signal. e.g. where the satellite is. What time was it when the satellite sent the signal. Where are all the other satellites (every now and again).
I wouldn't say Prince Charles was a retard, just naiive and out of touch with the "real world" which is hardly surprising considering the insulated life he has to lead.
It may have taken hundreds of years to breed him, but in the same hundreds of years we also manoeuvred his family out of any executive powers wrt the UK. So now we have proper democratically elected leaders who would never get involved in anything stupid... err hang on...
I doubt it since a lot of the European countries are not enthusiastic about a war and France in particular is dead against it. France is the main driver behind the European space effort.
this is not the fault of the DB this is the fault of the data-owners.
A commercial DB server (i.e. one used commercially not one that costs money) should be able to survive something like a power failure without corrupting data. There are many reasons why a server might go down even when apparently fullly protected by UPSs etc. Some I have seen are:
- UPS circuit breaker being tripped by idiot maintenance man who was cleaning bits of the UPS with a metal brush
- kernel panics
- accidental shutdown by tired, stressed and overworked sysadmin who was logged into the wrong server when he issued the "halt" command
- SCSI devices locking up the bus
- database application failures (does not bring the machine down but can cause referential integrity failure without a transaction based DB).
All that hardware you are using is great (essential) for 24x7 availability but overkill if you accept lower availability but still need consistent data.
XML and SQL are designed for different jobs. XML is a language for describing structured data, nothing more, nothing less. SQL is a language for manipulating structured data in a flexible way. I see no reason why you couldn't issue an SQL query to a database and have it return the results as XML. Well, there is one problem: PHP (for instance) has a nice little function call that will take a row from the mysql result set and return it as an associative array indexed by the column names in native format. Other languages have equally simple ways to get the data in a usable form. Why mess around with XML parsers?
SQL comes into its own as soon as you have more than one logically distinct but related set of data. SQL allows you to query that data in arbitrary ways not necessarily catered for in the original design.
Further, XML is a poor way to store data unless you intend to read it all into RAM before doing anything to it. An XML file is essentially a stream of character data which means that it is difficult to index it (making searches slow), difficult to insert records into it (well you could just append new data thus making searches even slower) and not space efficient (lots of extraneous syntax which is only there to make it easier to export to other apps + binary data has to be stored encoded as character data in some way which invariably makes it bigger).
How do you know the apostrophes were in the original and not added by the poster?
I resisted the urge to write "apostrophe's".
Re:Two points - not quite, IMO
on
The Tyranny of Email
·
· Score: 2, Interesting
First, the article does not object to e-mail merely the way a lot of people use it. Second, you and the article writer are in complete agreement about point 1. The fact is that most people configure their e-mail clients so that they know about every e-mail straight away. I learned not to do that years ago. Perhaps companies should configure their e-mail servers to only deliver mail in batches every two hours say.
I kind of agree with you, but Safari feels smaller and lighter weight than Mozilla and integrates better with OS X which is why I use it in spite of the fact that I miss lots of Moz functionality (per site image and cookie blocking for two).
BTW you can set any browser you like as your default browser through the Internet part of system preferences.
I seriously doubt that Columbus ever said anything about English ships since he was Italian and financed by the Spanish for his big voyage. Also, I'm not a naval historian, but at the time (late 15th century) England was not renowned as a great maritime nation, particularly if it's ships were in the *land*.:-)
Slashdot Mirror
Switching from Win2K (say) to XP on every desktop obviously carries a cost (a few hundred dollarsper desktop). However, switching to Linux will require retraining of every member of staff plus some loss of productivity while they get used to things like Open Office etc. Plus there will have to be a big consulting project to make sure that all the apps they use can be easily ported or replaced. Plus you have to retrain the sys admins and support staff.
And the richest man in the World gets more say than anybody else... ... who is that?
Is this actually enough in the general case?
It has been said "place your wireless network outside the firewall", but I think this is only any good if there is also a firewall between the wireless LAN and the Internet too. Otherwise all the PCs on the wireless LAN are weak spots for a cracker. Compromise a box which has a VPN connection to the corporate LAN and you are effectively inside it.
I think the same argument applies to any type of VPN connection (such as users at home on a DSL or dial-up) unless all traffic from that box is directed through the VPN.
Apart from all the other reasons given above, it is also much easier to snoop a wireless lan than an ordinary lan since your laptop probably comes with all the necessary hardware built in (i.e. wireless card). To snoop a normal ethernet you probably need some sort of really expensive radio receiver and software (well expensive by comparison with a wavelan card).
Today I was on a training course at a major software supplier which shall remain nameless for reasons to be discussed below.
Unfortunately there was no internet access in the training room
Fortunately my Mac told me there was a wireless lan.
Unfortunately it was encrypted
Fortunately the password needed was the name of the company
Unfortunately there was no DHCP server so I'll have to guess an IP address, router and DNS server in order to get arrested for unauthorised use of their LAN.
But the main thing was, my first attempt at social engineering worked.
Speaking as a man I can tell you that men *never* carry pens about and are therefore more desperate to con some poor sucker at the station with a fake password.
Who cares if there is a command line version?
My Mac just popped up a dialog box, I ticked a box and pressed a button and it was downloaded and installed.
The first thing a mail server should do after connecting to another mail server is issue a HELO or EHLO command e.g:
EHLO myhost.mydomain.com
You can easily check to see that this matches the DNS name of the incoming connection. Note that this DNS name is completely independent of the domain in the address in the MAIL FROM: command so it's not a problem for servers hosting multiple domains.
Nice idea, but it would mean that your inbound and outbound mail server(s) both have to have the same IP address.
It would also break the situation which I am in whereby I send my outbound mail through the easynet SMTP server no matter which of the three domains I own it comes from. This is necessary because when I'm dialled into easynet, I can only relay my outbound mail through its servers (the other servers would see me as an external connection trying to SPAM).
Firstly, it wasn't Earth that they came from, it was Golgafrincham. The middle ship actually *landed* (crashed) on Earth. Secondly, it wasn't marketeers and politicians, it was the useless middle stratum of society including advertising execs, hair dressers, marketeers, estate agents, telephone sanitisers and marketeers. Thirdly, it turned out to be not such a good move as - some years later - the remaining population were all wiped out tragically by a virulent disease contracted from dirty telephones.
Did they actually stop the war? The word "power" suggests to me the ability to actually have an effect on events. Super-piss-in-the-wind seems more accurate to me.
Red eye is caused by the light of the flash unit being reflected off the retina of the eye of the subject. The only reason it happens is because the flash unit of many consumer cameras is very close to the lens. All you need is a flash that is mounted or held away from the camera lens. Any professional can eliminate red eye entirely without image manipulation.
I am not a scientist either, but I would imagine that the problem lies in your assumption that the process of the water being absorbed by the rag at the bottom and then being transferred to the top is cost free (in energy terms). My guess would be that in order for water molecules to get from the bottom of the rag to the top they must cool down a bit.
If your hypothetical system were totally isolated, ie no heat transfer from outside to in, if you could keep the drops going and you were taking energy out from your turbine, I think the liquid would eventually freeze. However, you'll probably find that the rag reaches some sort of wetness equilibrium and the drops will stop.
How about two pieces of bread buttered on one side and then made into a sandwich?
The bomb example was just an example. There's a major difference between the outlook of the British and the Germans. Basically: we didn't start it (to paraphrase Mr Cleese). And we were on the winning side.
A lot of people suffered in very nasty ways in the Second World War and it all comes down to the political ambition of one man (from Austria), but it rubs off on the country he was leading at the time whose people went along with him for whatever reason. If I was a German I'd do everything in my power to avoid the slightest hint of any association with what happened in WW2.
"Scud" is now used (in this country, the UK) to mean any Iraqi missile capable of targetting a near by foreign country but not necessarily reliable enough to hit the city it was aimed at. In a technical sense it is a particular type of Soviet (?) missile sold to the Iraqis a long time ago.
No, there is information in the GPS signal. e.g. where the satellite is. What time was it when the satellite sent the signal. Where are all the other satellites (every now and again).
I wouldn't say Prince Charles was a retard, just naiive and out of touch with the "real world" which is hardly surprising considering the insulated life he has to lead.
It may have taken hundreds of years to breed him, but in the same hundreds of years we also manoeuvred his family out of any executive powers wrt the UK. So now we have proper democratically elected leaders who would never get involved in anything stupid... err hang on...
I doubt it since a lot of the European countries are not enthusiastic about a war and France in particular is dead against it. France is the main driver behind the European space effort.
this is not the fault of the DB this is the fault of the data-owners.
A commercial DB server (i.e. one used commercially not one that costs money) should be able to survive something like a power failure without corrupting data. There are many reasons why a server might go down even when apparently fullly protected by UPSs etc. Some I have seen are:
- UPS circuit breaker being tripped by idiot maintenance man who was cleaning bits of the UPS with a metal brush
- kernel panics
- accidental shutdown by tired, stressed and overworked sysadmin who was logged into the wrong server when he issued the "halt" command
- SCSI devices locking up the bus
- database application failures (does not bring the machine down but can cause referential integrity failure without a transaction based DB).
All that hardware you are using is great (essential) for 24x7 availability but overkill if you accept lower availability but still need consistent data.
XML and SQL are designed for different jobs. XML is a language for describing structured data, nothing more, nothing less. SQL is a language for manipulating structured data in a flexible way. I see no reason why you couldn't issue an SQL query to a database and have it return the results as XML. Well, there is one problem: PHP (for instance) has a nice little function call that will take a row from the mysql result set and return it as an associative array indexed by the column names in native format. Other languages have equally simple ways to get the data in a usable form. Why mess around with XML parsers?
SQL comes into its own as soon as you have more than one logically distinct but related set of data. SQL allows you to query that data in arbitrary ways not necessarily catered for in the original design.
Further, XML is a poor way to store data unless you intend to read it all into RAM before doing anything to it. An XML file is essentially a stream of character data which means that it is difficult to index it (making searches slow), difficult to insert records into it (well you could just append new data thus making searches even slower) and not space efficient (lots of extraneous syntax which is only there to make it easier to export to other apps + binary data has to be stored encoded as character data in some way which invariably makes it bigger).
How do you know the apostrophes were in the original and not added by the poster?
I resisted the urge to write "apostrophe's".
First, the article does not object to e-mail merely the way a lot of people use it. Second, you and the article writer are in complete agreement about point 1. The fact is that most people configure their e-mail clients so that they know about every e-mail straight away. I learned not to do that years ago. Perhaps companies should configure their e-mail servers to only deliver mail in batches every two hours say.
I kind of agree with you, but Safari feels smaller and lighter weight than Mozilla and integrates better with OS X which is why I use it in spite of the fact that I miss lots of Moz functionality (per site image and cookie blocking for two).
BTW you can set any browser you like as your default browser through the Internet part of system preferences.
I seriously doubt that Columbus ever said anything about English ships since he was Italian and financed by the Spanish for his big voyage. Also, I'm not a naval historian, but at the time (late 15th century) England was not renowned as a great maritime nation, particularly if it's ships were in the *land*. :-)