Newbie wireless question (slightly off-topic)

I didn't want to post this here as it's not entirely an Airport-specific question. I posted this to the iBook forums, but nobody there has answered so my apologies if this is not welcome here. (Any moderators can remove it if that's the case.)
I've been using computers extensively for over a decade, but I'm a total newbie to wifi. I just set up a wireless network in my house and would appreciate some advice/feedback.
My main concerns are whether or not my network is reasonably secure. I know there is no such thing as perfect security, but I don't know if what I've done is good enough or not.
I don't have an Airport base station, but I do have a D-Link Airplus G and an Airport card in my iBook. I have WEP set up on the router and I have enabled MAC filtering, listing only my desktop and my iBook, excluding all others from the network.
I'm fairly certain that nobody in my neighborhood is going to get into my machines this way or be able to sniff my network data stream, but am I right in assuming that nobody can "piggyback" on my Internet connection too? Presumably, if everyone but my own machines are MAC-filtered and kept out, then the Internet connection is also protected. Is that how it works?

WEP and MAC filtering are better than nothing, but you can do better. These are my suggestions:
1. Use WPA with a pre-shared key (PSK) and TKIP encryption on your Netgear router, along with an alphanumeric passphrase of at least eight characters not found in any dictionary. The equivalent setting on your Mac is "WPA Personal". Unlike WEP security (which an expert can crack in under half an hour), WPA security is currently unhackable by any practical means as long as you use a non-dictionary passphrase. One last point - WPA security requires all your wireless Macs to be running MacOS 10.3 or newer.
2. MAC filtering is (these days) essentially useless as a wireless security method. Using "packet sniffing" of traffic on your wireless network to find out what MAC addresses are used by computers on your network, and a PC that allows its MAC address to be cloned so that it is identical to the MAC address of one your own wireless computers (which is possible with most PC wireless network adapters) even an amateur hacker can defeat MAC address filtering in minutes.
By the way - I don't think your posted message here is off topic. In my opinion, the Airport discussion forums are the best place to post any questions related to usage of wireless networks. Questions of this nature are virtually never specific to any Mac model.

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Slightly off topic - ATI test demos

Hi,
Slightly off topic question but...
Many years ago a friend of mine (albeit a PC user) showed me a graphics card render demo which was a take on the Lobby Scene from The Matrix, designed to show of his (then) high powered graphics card (this was about 8 years ago)
I was wondering if anyone knew of any websites that had these ATI graphics card rendering demos that would show off the power of the ATI X1900 card - I don't mean the .mov and .avi pre-rendered demo videos that are on ATi's site - I've already checked and the only ones they have are the ones for the older x800, what I'm after are things that are more like applications you run that render the video live. (ATI/AMD do have some but they are very old - when SmartShader 2.0 was released)
Anyone know? or alternatively, any other rendering apps that can show of my 512mb's of graphics card-age?
This is purely for entertainment...
Many thanks!
Regards,
Ben
I hope this makes sense!

Usually push connectors for bare wires are designed for less or up to 200 circles ....
Depending on the number of test performed, mounting time, ... I would ask the push button manufacturers for test fixture connectors . Take the linecard of some distributors (digikey, RS ... ) to find them.
Might not be the cheapest solution on the first run, but for daily use good connectors are always worth the money.
Greetings from Germany
Henrik
LV since v3.1
“ground” is a convenient fantasy
'˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ'

Slightly off topic: Read-only tables pre 11g

Hi gang
I'm just writing up a database quiz for a local user group and I was hoping I could get a bit of inspiration from the database experts.
One of the questions will be "prior to 11g with the introduction of read-only tables, how could you make a table read-only?". The answers I've come up with:
1) Security priviliges (schema + grant SELECT)
2) Triggers
3) Create a check constraint with disable validate
4) Read-only tablespace
5) Read-only database (standby)
6) (Slightly crazy) Create view, and instead-of triggers that do nothing (similar to 2)
7) Write the query results on a piece of paper and then turn the database off
Anybody have any other answers, real or slightly off topic like mine please? ;)
Cheers,
CM.

Check constraint and trigger solutions may have problems with sqlldr direct path operations, so using it together with alter table disable lock may be mandatory depending on the needs. Especially if DDLs are also wanted to be avoided.
This topic was once mentioned on Tom Kyte's blog or asktom but I couldn't find the source to link here.
SQL> conn hr/hr
Connected to Oracle Database 10g Enterprise Edition Release 10.2.0.4.0
Connected as hr
-- cleaning objects
SQL> drop table tong purge ;
Table dropped
SQL> drop view vw_tong ;
View dropped
-- creating the demo table
SQL> create table tong ( col1 number ) ;
Table created
SQL> alter table tong add constraint cc_tong check ( 1=0 ) disable validate;
Table altered
SQL> alter table tong disable table lock;
Table altered
-- some DDL tests
SQL> drop table tong ;
drop table tong
ORA-00069: cannot acquire lock -- table locks disabled for TONG
SQL> truncate table tong ;
truncate table tong
ORA-25128: No insert/update/delete on table with constraint (HR.CC_TONG) disabled and validated
SQL> alter table tong parallel ;
alter table tong parallel
ORA-00069: cannot acquire lock -- table locks disabled for TONG
SQL> lock table tong in exclusive mode ;
lock table tong in exclusive mode
ORA-00069: cannot acquire lock -- table locks disabled for TONG
-- some DML tests
SQL> select * from tong ;
COL1
SQL> update tong set col1 = col1 + 1 ;
update tong set col1 = col1 + 1
ORA-25128: No insert/update/delete on table with constraint (HR.CC_TONG) disabled and validated
-- creating dependent objects test
SQL> create index nui_tong on tong(col1) nologging ;
Index created
SQL> create view vw_tong as select * from tong ;
View created
added comments to the code
Message was edited by:
TongucY

Slightly off topic: JDev + 10g + recommended laptop

Hi gang
This is a slightly off-topic post in the forum. Apologies to the forum moderators up front.
I'm in the process of purchasing a new laptop for development. Among other things I need to run Oracle 10g, + JDev + Solitaire.
My assumption for such a laptop is I'll need a fast hd (7200rpm+) for builds, and lots of memory to run Oracle 10g and memory hogging Java JDev. Also extra screen real-estate would be ideal with the multi-pane JDev.
However without the ability to walk into a laptop supplier, load up the software and do some tests, I'm not sure what would be sufficient. I don't want to go overboard on features in order to save $s, but I don't want something that wont run fast enough without bugging the Hell out of me either.
Does anybody have any recommendations on what laptop they are currently running or what they would buy to run Oracle 10g + JDev? Are my assumptions correct or does anybody run this config with less, happily?
Any help appreciated.
Cheers,
CM.

I have been doing all of my jdev + oracle development exclusively on my PowerBook G4 for over a year now. JDev 9.0.5.2 runs great, and so does the new 10.1.3 preview. I have upgraded the memory on it to 1.5 GB, but even with the stock 512 it ran well. Plus, there are all of the productivity benefits from running Mac OS X. I was skeptical about it at first, as you might be, but once I switched over, I haven't even looked back. The 17 inch screen is beautiful, it works just fine on the Windows network at work, has all of the Unix tools underneath, and for the very few times a windows machine is needed, Virtual PC helps out. Do yourself a favor and check it out.
Mike

Slightly off topic but a query on open type fonts

Hi all
I went to buy the frutiger fonts (9fonts) from adobe. The format is open type which is what I want. B ut when going to buy them I am asked whether I want mac or windows format. I thought open type fonts were cross platform? We have both MACs and PCs, if I want the font on both do I have to buy both formats ?
Link to font:
http://store.adobe.com/type/browser/P/P_1186.jhtml
Thanks for any help, sorry for this being off topic but I couldn't see where else to post.
gerryR

Yes, that's it, pretty much. Also, our download manager needs to know whether you're using Mac or Windows. The *contents* of the purchased file are the same.
T

Slightly off-topic, but Kudos to Creative's ebay out

I ordered travelsound speakers off the outlet. it said no power adapter, no case, just the speakers and mini-cable. Well, holy cow, it arri'ved today and it was a blister packed brand new unit with power adapter/case! I'm using 'em with my zen as an alarm clock.
Not only did I get more than I paid for (wow!) but it arri'ved in 2 days. Way to go, Creative, you made my day!!! Thanks!

If you connect your iMac directly, via an Ethernet cable, to the TW-provided Cable modem, does your iMac have any problems accessing the Internet?
If so, let's double-check your AirPort Express Base Station's (AX) settings...
Connect to the AX's wireless network, and then, try check settings:
AirPort tab
o Base Station Name: <whatever you wish or use the default>
o AirPort Network Name: <whatever you wish or use the default>
o Create a closed network (unchecked)
o Wireless Security: <Not enabled or set>
o Channel: Automatic
o Mode: 802.11b/g Compatible
Internet tab
o Connect Using: Ethernet
o Configure: Using DHCP
o Check the IP Address, Subnet mask, & Router address values. Are these basically the same that your iMac gets when directly connected to the Cable modem?
o WAN Ethernet Port: Automatic
Network tab
o Distribute IP addresses (checked)
o Share a single IP address (using DHCP & NAT) (enabled)

Slightly off topic - Force Time Machine to Backup Now

Hi All,
Being new to Macs and Logic, I have tried to organize my files, drives, etc. I use an external Glyph HD which has a root folder called Recordings. Under that, each project has it's own folder.
While using Logic, I turn off Time Machine and AirPort.
When I'm finished, I want to back up my projects to the time machine drive before I shutdown. I do Shutdown the iMac because I only use it for recording, and may not use it for days at a time.
Is there a way to force Time Machine to do a backup on demand? I have looked high and low and can't seem to do it.
In the PC world, I would just write a batchfile, or use a small utility to copy files that have changed since the last backup.
Having this backup utility built in, I was hoping to take advantage of it.
If this is not possible, can someone suggest a utility that will backup only files that have changed? Again, brand new MAC user here.
PS - I do have an external 500GB drive just for the backups.
Thanks in advance .... and Happy Holidays!
Peter

There are free apps, or shareware at least to give you complete control over when Timemachine backs up. Also if you're external is a LaCie they provide a very good free backup app called silver keeper.
There is also Carbon Copy Cloner, which I understand can be made to work in this way.

Slightly off-Topic: My dosbox forces me to always enter javac.EXE

Hello,
Does anyone know why I can't just run the java.exe by entering "java" into the console? I'm rather forced to always enter "java.exe", the other way it says "command not found". Why could that be? Strange: It worked since a few days, but now not anymore.
Thanks
Edited by: bravemenrun333 on Nov 13, 2007 4:13 AM

bravemenrun333 wrote:
Thank you mlk, so should my PATHEXT variable look just like this: ".EXE;.COM;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH" ?That is what mine looks like.
Dunno how it got twisted that way, because it seems right now it is just a copy of the PATH variable...Someone messed up an assignment, have you installed anything in the last few days?
Question: Do you recommend the use of Env. Var. Editors like RapidEE (www.rapidee.com)?I don't edit them enough to even consider looking for a editor.

Slightly off-topic: Points

Given the discussion we've had here about points and gamification in the past, I thought this was slightly relevant and definitely amusing.
Feel free to lock the thread, but it is good for a chuckle
http://dilbert.com/fast/2013-05-19/

As it says: "In the narrow sense....". Reminds me of a saying: "One man's trash is another man's treasure." ;-)

Slightly off topic --- should i give transfer to my company

Hey every1...i need some suggestions from u people....
I work in here in riyadh (Saudia Arabia)....during the interview process for the company where i am working ryt now..... i was told that as an oracle guy u will be dealing with transfer of company's complete DB in MS-Access and SQL server 2000 to oracle 10g......n was told that i would be provided training in forms and report 6i.....
But two days after a I joined i was told that i wont be provided any kind of training and i have to learn forms and report 6i on my own.....i was complete dumb struck did not know what to do...again after one week i was told by my manager not to do the learning work during office hour instead do it home and start implementing i.e start building applications in forms 6i......BOOOOMMB!!!!!!....initially i struggled a lot for making this applications but some how did it with the help of OTN...
when i asked them about the core DBA work ...i was told no need for that thing now..at present give ur time in building applications...after few motnhs all different kind of things ...if i said them i dont how to do any thing..the management replied back by saying ..UR AN IT GUY N U SHUD DO IT .....
Its been around 8 months in these company...and now they are asking for transfer of SPONRSHIP(*Its a process where u transfer ur residence permit to company where u work* for) but the people who already transferred their residence permit to the company where i m working are suggesting not to transfer my residence permit to this company bcoz once i transfer they wont give me the NOC to search for jobs in other companies in ur near future....
the salary is good around 1 lac indian rupess per month (8500 SAR)...but in terms of learning n looking at future i dont find it to be good....
my age is 23 will turning 24 this OCT.....
I would really be glad if u people could help me with some suggestions to transfer my residence or to look for other jobs here in Saudi Arabia

Having worked in the Middle East, I'd suggest you finish your contract & get the hell out of there!!!
While the money is good, you're still young & can easily make the same if not more elsewhere. The company doesn't look worth it, judging from their attitude.
You didn't mention if you're certified or not? At the end of the day, it also depends on what you want to do. Do you seriously want to be an Oracle DBA?
Whatever your career choice in IT, don't look only at the money... look for a good environment where you will learn & grow. The money will follow automatically.
You can also try in Dubai, Bahrain, Qatar... which are far better countries to work in.
Reading about your situation, I wouldn't transfer to the company visa.
The rest is up to you.

Slightly off topic.......

hi folks!
im back AGAIN, with another poser. this is abit o/t but im wondering how i can calculate the energy consumed from my previous calculations and plot a graph of energy vs time, which would be very apt for my cell batterys as im going through loads.
i am measuring the power consumption of WSN's and a 25mm node we have developed here.
i would rather do this in excel, as i would have to re run all my tests on labview again if i was to alter my vi.
i integrate power to get energy, but not sure how to go about this or what formula to use.???
confused.........

Hi,
Check this example.( chosen from examples shipped with labVIEW 7.1)
It should give you an idea for calculating energy of a signal
Regards
Dev
Attachments:
Parseval's Theorem.llb ‏30 KB

Slightly off topic - move cursor over image to magnify ?

You know those sites that display a detailed photo of say 800x600 but, display it in an area only 200x200 ?
the user moves the cursor around the 200x200 window and the full size 800x600 scrolls around the 200x200 window ?
It's kind of a magnifying glass effect
Anyone know how I can implement this ?

Ben Nadel blogged a bit on this last month. It may get you going. http://www.bennadel.com/blog/1824-Creating-An-Image-Zoom-And-Clip-Effect-With-jQuery-And-C oldFusion.htm

Slightly off-topic: app for ripping dvd of film in public domain

Hi
I want to use a few snippets of a film in the public domain, The Green Promise, in a music video for this flick I'm working on.
Archive.org, where I can download it, only has what they call a 512kb.mpeg4 version (I take it an mpeg4 export of a 512kb version). Youtube's version must be from that too cause full screen it looks just as cruddy.
I see where I can get the dvd from Amazon. You'd think that would be superior quality, no? If so, any app you would recommend to use to 'rip' it? One where I can rip segments instead of the whole would be best.
best
elmer

If it's non-protected, MPEG Streamclip will do the job and will allow saving to your choice of codecs. Streamclip is free, but you will need to purchase the QuickTime MPEG2 Playback component from Apple ($20). Follow the instructions on the Squared 5 site for this.
Handbrake is an alternative, which I have not used in several years. As I recall, it outputs either an H.264 or X.264 file.
Russ

Slightly Off Topic: Toshiba join Dell and Apple to recall the Battery

For someone who feel bad about apple recall battery program (affected only for certain G4 iBook and or G4 Powerbook ~ not MacBook or MacBook Pro), this link might make you fell better that we are not the only one (or two ~ Dell recall it first).
http://209.167.114.38/support/ProductNotices/batteryexchange/
Peace Out.

mailbfr uses rsync and thus adds only changes after the first backup. So it's a good idea to use different directories once a week.
Your cron job looks ok (you used the syntax I gave you to get it, right?) and mailbfr doesn't care whether it's run interactively or not.
What do your logs tell you? Cron output gets send to "root" on your system. If you haven't done so, add an alias so that mail for "root" comes to your mailbox.
Does cron per se actually run? Check /system/library/launchdaemons/com.vix.cron.plist

SAN extension - slightly off topic

Greetings,
We currently have two pairs of Brocade 48000 Directors at each site that are filling up very rapidly. We also have two pairs of Brocade 3800's that have ISL's over dark fibre. We have purchased some 8-Port Enhanced Data Muxponder Cards for the Cisco ONS 15454 Multiservice Transport Platform (MSTP) for SAN extenion as we are going to need lots more bandwidth as we are looking at use VTL's at each site to backup the other site. And we also are doing geographically dispersed clusters (geo clusters) which requires synchronous true copy between the HDS USP's. The plan is to move all the ISL's to the 48000's and retire the 3800's.
The current Brocade switches have endless zero buffer credits messages (about 300,000 per hour) but there is no apparent way to fix this as they only have 29 buffer credits available per ISL and the distance between the sites is small enough that 29 is enough. In theory, we only need 20. The switches use 29 all the time. I don't even know if this is a problem.
I am looking at asking for a Cisco solution to handle the geoclusters and the upgraded number of ISL's for the backups. I seriously doubt my work will look at the director class as they think they have spent enough on the Brocade switches.
I am interested in knowing if anyone thinks something like the 9216i would be a better solution with the ONS 15454 MSTP as both are Cisco products. In particular the buffer to buffer credits seem to be much higher in the MDS than the Brocade but if there were issues with Brocade, then surely they would have made changes for this.
The reason I see the zero buffer credits all the time is because I am using HDS Tuning Manager and it reports on them for some reason.
Our HDS systems have spare ports which means we could use them and the the connections to the geo cluster hosts and connect them through the 9216 to each datacenter. Thats enough redundancy with four switches. The ONS seems to understand the Cisco B2B credits.
I think it is strange there is no Brocade forum site or at least one that I can find.
Stephen

On a Cisco board, you are always going to be told that the ONS and MDS are a better option....:)I would think the MDS is a better option not only because it is stronger with regards to BB credits that you suggest is the core of the issue, but gives you more tools to do your work. The MDS has the simple show command and you would catch a zero BB credit situation if it occured. You have more config options to make the hardware do what you want, IE move BB credits around. You have 4 interop modes. You get VSAN's to do what you want. You can turn on performance monitor for free for 119 days to test your E ports. I don't want to do a marketing list here, but the point is that there more things you can do with the product so the business can get work done.
I still am guessing that your tool is looking at the F port link and not the E port link. Not to say that I know exactly what it is reporting but flow control is point-to-point so unless your device is one end of the E port, then it really doesn't know what's going on other than it does not have a credit to send from it's perspective in the world. If the E port has 29 and the F port on the BRCD has say 7, then once the array sends 7 frames and no R_RDY back, then the array thinks it has zero BB Tx credits. In this example, the credits still sits at 22 on the E port. This is assuming the HDS is using class3 FCP.

Newbie wireless question (slightly off-topic)

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