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Choose Your Side On the Linux Divide

CRC'99 Re:It's job security (826 comments)

It boils down to the old adage: "If it ain't broke, don't fix it."

This is exactly right. I was playing with the last lot of RHEL7 betas - the biggest issue I had was that ethernet adapters would randomly fail to start - and systemd would not give any details as to why. Each time I had to log in over a serial console, stop networking, disable the profile, enable the profile again, and start networking. This would work perfectly - until a random time when rebooting later on (and not every reboot) where networking wouldn't come up again.

This is not what admins need - randomly failing network connections. This is also a problem that was fixed decades ago - until systemd causes it again.

Lets ignore the problems with new aims to recreate consoles etc in systemd / userland and ignore / disable the kernel ones. Because that's a great idea *cough*

about three weeks ago

Gmail Recognizes Addresses Containing Non-Latin Characters

CRC'99 Next wave of phishing? (149 comments)

So the next lot of phishing will come from: róó / À or BìllGà etc?


about a month ago

Programming Languages You'll Need Next Year (and Beyond)

CRC'99 Re:I like Swift pretty well (315 comments)

It gets used rarely and the newer software that is to replace it is being written in python - the portability lesson has been learnt.

Python 2 or Python 3? They're not portable between the two versions. Who knows what Python 4 will bring.

about a month and a half ago

Which desktop environment do you like the best?

CRC'99 Re:XFCE stays out of my way. (611 comments)

I agree. XFCE would be perfect by itself if it did proper vsync to stop tearing. From my research, this won't be the case until XFCE is ported to wayland. Compton is another low resource compositor that has a working vsync implementation and works perfectly with XFCE.

about 3 months ago

Which desktop environment do you like the best?

CRC'99 Re:Just a WM (611 comments)

+10 insightful.

I'd like to add my FUCK YOU to the Gnome project too :)

+1 here too.

I tried out the RHEL7 RC the other day and was very disappointed to see Gnome3 being the default desktop. No XFCE, only Gnome 3 or KDE. A bit of a shame. Means I won't be using RHEL7 on any desktops like I was hoping. At least the GUI selection won't matter for console only installs - which is the majority of my EL installations...

Right now, I'm using XFCE on Fedora 20 - and its not perfect, but does what I need. Getting Bluetooth back would be handy (blueman only works with bluez4, Fedora has bluez5).

about 3 months ago

Is It Really GPS If It Doesn't Use Satellites?

CRC'99 Re:Not GPS (298 comments)

This is the backup "GPS" system in military aircraft, and what we used before GPS

Not quite... The GPS is used for calibration, then INS is the primary system. For the logic to fall back far enough to use a pure GPS position, a lot of other things have failed....

about 4 months ago

The $100,000 Device That Could Have Solved Missing Plane Mystery

CRC'99 Re:Lat / Long? (461 comments)

I can see how a constant stream of telemetry might be cost-prohibitive, but what about a squirt of data consisting of -
  - Flight Number
- Lat / Long
- Airspeed
- Groundspeed
- Altitude
- Compass heeding ...sent every five minutes? At least that would give a 'last known' location.

Congratulations - You've just described ADS-B [1] - however its MUCH more often than every 5 minutes - and more airliners already have it. In fact, look at the tracking info from for the flight in question [2] - then it disappeared... Having yet another bit of tech to combat this is stupid.

[1] - Bonus: How it works - http://www.airservicesaustrali...

about 6 months ago

Microsoft Confirms Windows 8.1 Spring Update, To Focus On Non-touch Devices

CRC'99 Re:too late, Microsoft (172 comments)

I moved to KDE on Debian and haven't looked back.

You are hemorrhaging users to phones, tablets, OSX, gamers to game consoles, power users to Linux.... pretty much everything that isn't Windows. We told you people were only using Windows because there was no choice, but you failed to listen and use the chance to improve your technology. Now, it's too late. There are other choices, and people are moving to them. To quote B5:

"The avalanche has begun. It is too late for the pebbles to vote."

In a way, I agree - but I can't say that I like KDE or Gnome 3. I ended up settling on XFCE using Fedora 20. It boots fast, everything works as it should (except a PCI DVB card - but I already had a spare USB one that works fine).

Thunderbird for email, Chrome for web browsing, terminal, Steam for my TF2 fix, and it all 'just works' - especially now the open source radeon driver does dynamic power management correctly.

I'm just in the middle of purchasing a new laptop - and the first thing that will happen is it be formatted and Fedora 20 get installed. I've also moved away from Google for contacts / calendar sync and now using OwnCloud (private stuff ftw!), and Dropbox is also replaced by OwnCloud. I'm finally getting to have a say in my OS and data security!

about 7 months ago

Schneier: Break Up the NSA

CRC'99 Re:Tomorrow's News (324 comments)

Security expert Bruce Schneier was found dead in his home. The cause of death is unknown but police are investigating possible foul play.

Thats too much work... They just need to pay some young girl a few grand to say she was raped by him. Oldest trick in the book....

about 7 months ago

I think wearable computing will take off...

CRC'99 Re: There'll be a killer app. (254 comments)

Seeing and recording are two different things. If you don't understand the difference, you're a moron. Actually, given all the cameras and phones and shit, I think I'm going to have to start wearing a mask anyway...

Diary / Calendar entry:
Meeting at 1300 today with Anon Coward.

Look at that, its recorded. If its in my phones calendar its even a digital recording of it. Better really get your mask on... But wait, wouldn't I still know it was you if I talked to you?

about 8 months ago

Red Hat To Help Develop CentOS

CRC'99 Re:This is more about Oracle Linux (186 comments)

I don't think anyone really cares about binary compatibility.

Apart from anyone wanting to run software certified for RHEL, you mean?

This is where it gets silly.... You worry about the certification for other software, but not the base OS? If the certification is important, then it would be BETTER to use the proper RHEL and not a free 'knockoff'....

about 8 months ago

Red Hat To Help Develop CentOS

CRC'99 Re:This is more about Oracle Linux (186 comments)

What killed the release of CentOS 6 in a timely manner was all the build dependencies. To get an exact binary-compatible RPM for foo.el6 you needed to build it on, say, Fedora 13, with libbar-verisonX.Y.Z.fc13 installed. It wasn't self-hosting or documented how to build el6. Scientific Linux came out much more quickly because they didn't care about binary compatibility.

I don't think anyone really cares about binary compatibility. I cannot think of a single operational advantage that this gives - apart from "narf, the checksums match what I could have paid for". The massive migration away from CentOS in version 6 proved this.

about 8 months ago

Red Hat To Help Develop CentOS

CRC'99 Re:If it means faster CentOS development, good (186 comments)

2) CentOS being a closed development group that refuses to accept any help from outsiders. Scientific Linux is another clone of Redhat that was able release their version of Redhat 6 much faster.

Correct - and the team at Scientific Linux are awesome to work with. It is a breath of fresh air from the poison that is the CentOS 'community'.

about 8 months ago

The Cybersecurity Industry Is Hiring, But Young People Aren't Interested

CRC'99 Re:hire me (289 comments)

The employees are out there but they cannot work for chinese slave labor wages, nor do they want that lifestyle.

11 months ago I finished my Commercial Pilots License - I haven't been able to find any work at all since completing it. That was the last time I touched a plane.

The same problem exists. People are expected to splash $100k AUD on their license, then work for ~$25k a year. Not to mention get themselves to jobs on their own dime etc... I hear the same lines "There is a massive pilots shortage!!" - which is absolute bullshit. We just have to take other jobs to pay off the loans etc we took for our training.

It just about gutted my career - but this is the world we live in. Now I'm only casually employed - and making about the same amount as I would as a pilot - while working only a handful of hours.

about a year ago

Your Next Network Operating System Is Linux

CRC'99 Re:Network fabric != shell scripts (192 comments)

The way to get the most performance out of iptables is to make each chain as small as possible.

Thats sorta the problem. Even lowend Cisco devices will handle quite lengthy ACL tables without any performance degredation.

No, No they don't. If you look at the packet-per-second performance you get when you put even some basic rules in there, you'll be surprised. Some systems have their PPS rate halved by this...

about a year ago

Your Next Network Operating System Is Linux

CRC'99 Re:Network fabric != shell scripts (192 comments)

each adapter gets a configuration attached for starters, then things go from there (VLANs, ACLs, etc.)

iptables -N eth0-in
iptables -N eth0-out
iptables -A FORWARD -i eth0 -j eth0-in
iptables -A FORWARD -o eth0 -j eth0-out

Then create all the rules you need in the specified chain.

The way to get the most performance out of iptables is to make each chain as small as possible. This can quite easily be split up into logical lists for what you actually do - ie:

iptables -N
iptables -N
iptables -N
iptables -A FORWARD -i eth0 -d -j
iptables -A FORWARD -i eth0 -d -j
iptables -A FORWARD -i eth0 -d -j

This way, you can easily branch out and skip a fuckton of rules that will never apply to the packet that is being processed. Usually, you can bring each chain to less than 6 rules. Less rules == less overhead == more performance.

about a year ago

Passenger Lands Plane After Pilot Collapses and Dies At the Controls

CRC'99 Re:Good stuff (249 comments)

My problem was I was thinking of trimming as an extra thing I had to do - really, it means you have less to do.

The best advice I have ever been given in flying is this: Unload yourself.

What does this mean? Ok, power on, take off roll, reach takeoff safety speed (usually 1.5x stall), rotate, airborne, set your climb attitude. Next thing, trim. With a bit of practice, about 20 seconds after liftoff, you will be trimmed for the climb - this means you can take your hands off the controls and you'll continue to climb at your (usually) 500ft/min. Your speed will be stable, your climb rate will be stable, and you'll keep climbing until you either get disturbed by a gust of wind etc or you change the controls.

Take this time now that you can fly with hands off to glance at your engine instruments - that the RPM is what you expect it to be, oil temps and pressure is ok, airspeed is what you expect, then check your performance again (attitude, power etc). This can all be done within 45 seconds after liftoff. Now you do what any VFR pilot does best - look outside. As you're not struggling to keep the aircraft under control, you can observe what is going on outside. Looking for traffic, obstacles, making sure what you see outside matches the instruments (ie you're climbing, going fast enough etc).

Coming up to your assigned / desired altitude, use the yolk to bring the nose down, power to cruise, trim, trim, trim. Usually up to about 1/2 - 3/4 of a turn on the trim wheel and you're almost able to fly hands off again in seconds.

A good exercise here - trim for the climb, then don't touch the yolk again until you're on final to land. Use the trim for your attitude and rudder for turning. Do the entire circuit using only trim, rudder and throttle. As you would have been taught, the secondary action of yaw is roll - so you'll find you actually start to bank while only using the rudder. It gets tricky - and you'll be all over the place while first trying this - but it is great for learning the relationship as to what you're doing affecting the aircraft.

Anyhow - this isn't flight training 101 on slashdot, but learning to fly has been a highlight of my life - and I'm always happy to share things with people. Feel free to email me if you want to discuss more random things ;)

about a year ago

Passenger Lands Plane After Pilot Collapses and Dies At the Controls

CRC'99 Re:What?? (249 comments)

I thought the whole point of those big bright landing landing lights was to illuminate the ground when you're near touch down (and for taxi/takeoff). Runway markers may may it easy to see the runway from afar, but aren't going to be as useful for an untrained pilot to see how fast the plane is approaching the ground since a few fast moving dots of light streaming by aren't the same as a broadly lit surface).

Heh - the 'bright light' called a landing light in a C172 is almost as bright as a single car headlight (if you're lucky, like the high beam). It does sweet fuck all to illuminate the runway. If you're waiting to see the runway via the landing light before you flare, you're going to have a bad time - and probably crater. Larger aircraft have much brighter lights, but the effect is still the same.

Night landings are hard. There are no floodlit runways that I know of in existence. The only form of reference you have is the shape of the lights. There are very few clues of your height or speed by looking outside at night. Night flying kills many - as it is VERY easy to fly straight into the ground because you can't see it - this danger is magnified even more when you are on approach to an airfield - especially if it is one with a 'black hole effect'.

During my night flying assessment, I was required to land at an airport 'void of artificial lighting' - ie only runway lights. As you fly towards the airport, imagine a completely black area with two rows of lights. That is all you have. If you're lucky and there is a full moon, you may be able to make out the ground. I'd say it is one of the hardest things I have ever had to do.

about a year ago

Passenger Lands Plane After Pilot Collapses and Dies At the Controls

CRC'99 Re:Good stuff (249 comments)

(I am a student pilot, and I fly a Cessna 172)

I'm a commercial pilot (who is currently unemployed) - however operating the radio is part of my pre-flight briefing with anyone in the right seat in any G/A aircraft. In this briefing, I also go through what I'll do if we have a radio failure or comms problems - as part of this includes them using the radio (if required). Most people are very attentive - and its with this exact reason in mind - if anything incapacitates me, the least I can do for passenger safety is to get them to talk to someone who can help.

If the person in the right seat is a bit of a fan about flying, I'll teach them a bit about basic flight controls during the flight as well. Most people see if as a bit of fun and enjoy it - but there is a serious reason behind the scenes... The best way to be prepared in aviation is to think ahead.

For less experienced pilots, this is why we always aim to trim an aircraft for the correct attitude and performance as early as possible. The last thing you want to do is to leave the aircraft incorrectly trimmed and have something happen to you. When you step up to jet aircraft, the most important control in the aircraft is the trim. Use it well and often.

about a year ago

Passenger Lands Plane After Pilot Collapses and Dies At the Controls

CRC'99 Re:Actually, Flaring is really the hardest part (249 comments)

Actually yes, it IS difficult unless you've practiced it. And most of us who practiced it had an instructor who recovered the plane when we fucked it up. And every pilot fucked this up in training.

Only in training? I'd say about 1 in 20 landings is still a fuckup compared to what we aim for... Once you get a few thousand hours experience, you'll probably still fuck up 1 in 50... True, the degree of fuckup is greatly reduced - but professional pilots with thousands of hours still bounce 737's etc.

about a year ago



Cyanogen Mod forces tracking of user devices

CRC'99 CRC'99 writes  |  about a year and a half ago

CRC'99 (96526) writes "In what was hoped to be an April Fools Day prank, Cyanogenmod just committed a change to the 10.1 git that removes the option of counting all devices installed with Cyanogen mod. Details reported by the stats service include the devices unique ID, the device name, the active carrier, and the country the device is located. While this is being touted as "anonymised data" by Steve Kondik, it is common knowledge that the unique device ID is unique for a reason. What effects does this have on privacy for CM users?"
Link to Original Source

Electronics warranties in todays age.

CRC'99 CRC'99 writes  |  more than 3 years ago

CRC'99 (96526) writes "With the current state of global trade, it has never been easier to shop from the comfort of your own home and have the latest and greatest shipped directly to your home. With these options though, what has happened to the warranties of various electronic devices? After recently suffering at the hands of HTC for a faulty phone, I'm wondering what other global companies offer true warranties for their products. What experiences have people had with other tech companies with a presence all over the globe? What suggestions do people have for companies and warranties in the age of Internet Shopping?"

CRC'99 CRC'99 writes  |  more than 7 years ago

CRC'99 writes "The Australian IT is reporting:

THE CSIRO has won another round in its lengthy battle in the US to collect millions of dollars in royalties for its 1996-patented Wireless LAN technology. Last Friday, a US federal court granted the science agency's application for an injunction to stop the Buffalo group of companies from infringing the CSIRO patent in the US. The injunction prevents the sale of products using CSIRO-patented technology until a licence is negotiated.
It's good to see that Australian Government research may finally get the rewards of inventing technology that is used by millions of people these days. The CSIRO however has yet to see a single cent from US companies using CSIRO patented technology without any licensing."

Link to Original Source


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