Read posts about sysadmin

January 23

Now I've seen everything (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

I'm not going to say much about it, but this morning I ran into something that put me right back to my teenage days. Back then, I was working on the side at a local sauna. It wasn't the cleanest of work environments. And now I run into something similar in the server room... o_O WTF?

Cleaning buckets: apparently handy, when you're in a tight spot. >_<

Posted in: seen everything , server room , sysadmin , work
August 7

A spoof on one of my Unix articles (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

The Martian Diary logo
Bwahaha, this is awesome! ^_^

A few months back I wrote an article about Unix shell variable scoping. I wrote the article after running into an odd situation where variables would lose their value, depending on which part of my script was running. All programming languages have these kinds of issues and they are commonly referred to as the variable scope. In the end I figured out most of what was going down and I wrote about it so others would find my solution.

In the meantime dozens of people -have- found this article, but one reader in particular has done something rather amusing with it! Instead of applying it to a scripting problem he (or is it a she?) was having, my article was turned into the diary of a Linux nerd.

Here's a small excerpt.
I was playing around with her (for a) "while" and was pipeing some data into her "while" (construct). Everything was working fine while I was inside her, but the moment I got out, it was as though everything changed. She has no memory of me and all the things I had did inside her. Half an hour of work and no final effect and I actually thought she was enjoying it.

Dramatic, no?

Posted in: diary of a linux nerd , spoof , sysadmin , unix
July 10

Big career changes: where do we go from here? (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Now that I'd decided to become a teacher, it left me with even more questions (duh). Which subject would I teach? At what kind of school? What kind of education do I need? Where do I study? How will this fit in with my job? Will I even be able to keep my job? OMG, will we be able to pay our mortgage and still have food on the table?! ONOZ!

Stuff like that.

Well... I quickly decided that I'd like to teach english or math at a high school level. I can wax lyrically about both subjects and both fields offer me with loads of new stuff to learn and explore.

So... How do you go from having a completely unrelated job, to being a teacher? Here's how... (mind you, all of this applies to the Netherlands).

You start out with two options:
1. You take up a part-time or full-time college education. (deeltijd or voltijd in dutch).
2. You take up a part-time teaching position and follow additional classes to become a real teacher.

This second option is called zij-instroom in dutch and really is only an option if your ambitions lie in teaching the same field you worked in. So for example, I could get a zij-instroom position teaching Comp Sci at high schools, whereas a biologist could start teaching Biology. Zij-instroom however requires you to have real and provable experience in said field, including the degrees that come with it. You will also need to take an entrance exam because they won't let just everybody start teaching. Should you be accepted for zij-instroom, then you'll get a two-year teaching permit, which is directly connected to a contract between you and the school in question.

Anywho... What with zij-instroom not being an option for my two chosen fields (I have neither a degree, nor work experience in english or math) I have to opt for the longer path. Getting into a full-time education (voltijd) really isn't an option for me anymore: I wouldn't have any income, I'd be bored stiff and I'd be in a class full of eighteen year olds. Which automatically guides me towards a part-time education.

Luckily every college in the Netherlands offers deeltijd educations for professionals looking for a career switch, or an upgrade to their knowledge. The Hogeschool Utrecht offers teachers educations that are actually reputable and it's close to my home as well! Now all that remains is to convince my employer to let me work either three or four days a week. *gulp*

Posted in: career change , career switch , education , it , sysadmin

Big career changes: finding my bearings (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

This blog post was made invisible initially. It has now been made available to the Internet at large. Sorry for breaking continuity :D

Actually... I didn't decide to go into education right from the get-go.

On the 27th of June I first had that breakdown, followed by a lot of talking with Marlijne. After that came a lot of soul searching of what I'd like to do and what I -could- do. While I wanted to do something radically different, I also needed to stay realistic.

So I started reading up on career switches, visiting the Ars Openfora and various dutch websites dedicated to the subject. And then I started to think of career options... I'd repeatedly expressed interest in becoming a craftsman, building furniture or getting into metalwork. Big, mechanical machines turn me on. I enjoy gardening and being outside. I considered becoming an office assistant. I even thought about joining the military!

And then, one evening, Marli reminded me of aspirations I'd harbored a few years ago. Back then I'd thought of getting a part-time teaching job at the local college, educating the next generation of sysadmins. This little nudge made me remember that, yes indeed, I do enjoy teaching! I love explaining stuff to people, making sure they understand all they need to and want to about the subject. This made me browse the Gathering of Tweakers fora, to search for stories about IT folks studying to become teachers. Well, I found these stories and they enticed me even more.

So the decision was made: I'll become a teacher!

Posted in: career change , career switch , education , it , sysadmin

Big career changes: prelude (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

This blog post was made invisible initially. It has now been made available to the Internet at large. Sorry for breaking continuity :D

Back in April, I felt like crap. Then, in June, it came back. Now, with the start of July I've made my decision:

I'm getting out of IT.

That day in June something snapped inside of me and I decided that I could no longer carry on working as a sysadmin. The work no longer motivates me, nor does it offer me some shine of glamour. I know that, while there are still endless, uncharted seas for me to discover, this field no longer holds a challenge for me. I know that whatever I'll need to learn, I'll be able to do so in a few days. Lather, rinse, repeat, until I grow old.

No thank you.

No longer will I be shifting bits and bytes around, being a faceless peon in a huge corporation. No longer will I be burning midnight oil at the altar of Unix.

Instead I will make difference in this world and I will be of use to the general public. I will try to educate this world's children, nudging them into directions they might otherwise ignore.

I have decided to go into education and become a high school teacher.

Posted in: career change , career switch , education , it , sysadmin
May 20

The passing of an era: Nagios (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Well, I have finally unsubscribed myself from the Nagios mailing lists. It was great being a member of those lists while I was working with the software on a daily basis, but these days I've put Nagios behind me. I haven't written one line of Nagios monitoring code for months now.

I'm sure I'll also be skipping this year's Nagios Konferenz unless a job involving monitoring comes up again.

Thanks Ethan, for making such great software freely available! All the best to you and maybe we'll meet again o/

Posted in: moving on , nagios , sysadmin , work
May 17

Update to Google Analytics (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

The new GA Dashboard
You may remember that I've been using Google Analytics to track visits to my website. So far it's been treating me well and I've been getting some useful information from its statistics.

This morning I received an e-mail from Google telling me that they've upgraded their Google Analytics software and that I can now access the brand-spanking new Dashboard in the normal fashion. So far things look alright, although I rather dislike the new colour scheme. I'm also not quite sure about the various options that GA provides; it looks like Google's been trying to cram more and more stuff in the menus. :/

I'll poke around GA some more and I'll try to send some feedback back to Google.



Posted in: google , google analytics , sysadmin , website statistics
April 6

w00t! Passed my LPIC-102! (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Yay! There wasn't much reason for my doubting :) I passed with a 690 score (on a 200-930 scale), which boils down to 87% of 73 questions answered correctly. Not bad... Not bad at all...

Next up: ITIL Foundations!

Posted in: lpi , lpic-102 , study , sysadmin , work

The Snow monthly gathering (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

I can't get over how quickly Snow's grown the last two years! When I joined them in June of 2004 I think I was something like the 45th consultant, with 15 more folks in the "overhead" (sales force, operations, hr, etc). In two years' time we've attracted forty new employees, with the hundredth n00b signing on this week. Imagine that!

The downside to growing this large is that our office building really isn't suited for us anymore: the meeting room has grown rather small and oxygen quickly runs out during our monthly meetings. Good thing that we're looking for new accommodations! Apparently they're either looking to rent an existing building, or even to build a completely new one. The deadline for the move is guestimated at Oct 2008. Shiny!

My presentation didn't go too well, since I hadn't prepared at all. I'd made the slides alright, but I'd never gone through all the things I wanted to say. I bet I came off as very nervous :) I'm very happy though that at least three additional guys indicated that they'd be interested in joining the group travelling to Assembly.

Studying for my LPIC-102 went rather oddly. The past few nights my head's felt like it was completely full and like it was unable to take up anymore information. I'm afraid that it rather affected my mood last night, making me all grouchy and bitchy.

@Marli: I'm sorry honey, that you had to endure that... again...

So... I'm off to the exam! Wish me luck!

Posted in: snow , snow.nl , sysadmin , work
April 3

LPIC-102 summary (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

The LPIC-102 summary is done. You can find it over here, or in the menu on the left. Enjoy!

Posted in: lpic-102 , study , summary , sysadmin , work

Irony or stupidity? (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

I don't know whether it's irony, or just daft old me...

At the office I'm in charge of the duty roster for our team, making sure that all holidays are booked, that all daily tasks gets planned and that everybody knows what they ought to be doing on which days. I even send out an e-mail every Friday, reminding the team of their duties for the next two weeks.

So why is it that I forgot that I'm on stand-by duty this week? XD

My phone was turned off, my laptop's in my drawer at the office and I missed an emergency call at 0600. Luckily it was only a category B server which means that in the end the customer did get what they were paying for ^_^;

Oh dear...

Posted in: irony , stand-by duty , stupidity , sysadmin , work
March 20

Tracking your website with Google Analytics (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

The executive overview
A few months ago my friend Dirk tipped me about Google Analytics. He uses GA to keep track of all the visitors and customers at his forum server and it helps him in optimizing the flow of his website.

Since September of 2005 I've been using a free Stat Counter account and I liked it pretty much. The only real downside being the fact that it would only track the last hundred visits to my site (an upgrade to your account lets you track a thousand visits). Even so, Dirk's tip peeked my curiosity and I created a GA account, just to give it a try.

Two months down the road I have to say that I am rather impressed with Google's work! Not only does the site provide me with detailed information, but it also looks absolutely great! The interface is rather user friendly (although one or two minor glitches pop up in Safari) and it contains just the right amount of eye candy to spiffy things up.

One of the most interesting features Analytics provides you with, is the option to configure Goals. By telling Google about the path you would like visitors to take through your website and by setting certain milestones you will be able to track how effective your site's design is. Google will tell you exactly at which points along the path people stop moving towards the goal you've set, allowing you to optimize the relevant pages.

A very simple example: I would like people to leave comments on my blog, hence one of the goals I've set for my website is for people to reach the addcomment.php file. In order to get there, people will have to visit both index.php and viewcomments.php.

Using Analytics it becomes clear that:
1. Out of 3927 hits to index.php only 72 have progressed towards step two of the funnel.
2. Out of 72 visits to viewcomments.php all 72 have progressed towards the final step and thus towards the goal.

This could lead me to conclude/brainstorm a few things:
* There's nothing wrong with my commenting page. Everyone who gets there intends to leave a message and they do.
* Only 1.8% of the hits to my front page actually lead to comments by visitors.
* This could mean that my front page design sucks and that people are not aware that they can leave a comment. I think this is rather unlikely though, since the commenting links are in plain sight.
* This could also mean that my blogging is ultimately dull and that people die from boredom before they can actually leave me a comment, cursing me to eternal damnation for their suffering. I am well aware my writing isn't the greatest and I'm also aware that I write about rather mundane stuff. So it's definitely a factor.
* This could also mean that I attract a huge lot of hit-and-run visitors who find their way to my site in a rather random manner, who have a quick glance and who decide that it's not for them.

This last idea is supported by some of the other data Google Analytics provides me with:
* Out of all the visits I've had in the past two months approximately 30% are returning customers. The rest visit once and never show their face again.
* Looking at the depth of all the visits we see that ~2600 visits only load one page before leaving again. ~550 load two pages and the rest (my regulars and a few sysadmins digging around for Nagios stuff) load more than three pages.
* This is supported by the bounce rates amassed by my pages. They seems to average around 65%-70%.

Again, this could lead me to a number of conclusions:
* my content is uninteresting.
* my website's layout and design is boring and unattractive.
* people come here to looking for something, but find that my site doesn't have what they hoped for.

Anywho... Loads of lessons to be learned from the information that Google Analytics provides me with. Aside from all the stuff I've mentioned so far, GA also provides the bog standard stuff that all others give you: browser stats, OS info, platform info, geo-location (most of my readers are from western Europe and the east of the US by the by), stuff like that.

Posted in: google , google analytics , sysadmin , tracking visitors , website statistics

Preparing for LPIC-102 (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Cailin working hard
One of the rules my employer Snow imposes on its employees is a rather strict certification track. Technically speaking each employee progresses through five C-levels, starting at 0 and ending up at 4. As you reach new levels of certification you will also reap benefits of your hard work.

Let's take the track that applies to me as an example:
C0 = no certification
C1 = LPIC1 (101 and 102) and ITIL Fundamentals
C2 = LPIC2 (201 and 202)
C3 = SCSA1 and SCSA2
C4 = SCNA and others

The irony of the matter is that I've already achieved both SCSA exams and the SCNA exam a long time ago, but that I'm still stuck at C0 because I haven't done my LPICs. So to work myself up the ladder I'm slogging my way through the requisite LPIC stuff, even though I'm not that fond of Linux.

The challenge here lies in the fact that haven't used Linux in a professional environment that much, so I'm at a disadvantage when compared to the rest of my colleagues. I'm really glad I've always been a rather good student, so cramming with a few books should get me through. I managed to score a 660 (87%) at my LPIC-101, so that brings some hope :)

And now I'm cramming for the 102 exam! Since I was postponing it way too long, I reckoned I'd better get my act together! This week I took two days off to dedicate myself completely to studying. I managed to work through six of the nine objectives in these two days, resulting in a thirty-one page summary so far. In two weeks time I'll take another two days and then I'll be ready!

Like last time I'll post my summary over here, to help out all those other souls trundling through their LPICs.

Posted in: lpic , lpic-102 , snow.nl , sysadmin , work
March 1

Recovering a broken mirror in Tru64 (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Today I faced the task of replacing a failing hard drive in one of our Tru64 boxen. The disk was part of a disk group being used to serve plain data (as opposed to being part of the boot mirror / rootdg), so the replacement should be rather simple.

After some poking about I came to the following procedure. Those in the know will recognize that it's very similar to how Veritas Volume Manager (VXVM) handles things. This is because Tru64 LSM is based on VXVM v2.

* voldiskadm -> option 4 -> list -> select the failing disk, this'll be used as $vmdisk below.
* voldisk list -> select the failing disk, this'll be used as $disk below.
* voldisk rm $disk
* Now replace the hard drive.
* hwmgr -show scsi -> take a note of your current set of disks.
* hwmgr -scan scsi
* hwmgr -show scsi -> the replaced disk should show up as a new disk at the bottom of the list. This'll be used as $newdisk below.
* dsfmgr -e $newdisk $disk
* disklabel -rw $disk
* voldisk list -> $disk should be labeled as "unknown" again.
* voldiskadm -> option 5 -> $vmdisk -> $disk -> y -> y -> your VM disk should now be replaced.
* volrecover -g $diskgroup -sb

The remirroring process will now start for all broken mirrors. Unfortunately there is no way of tracking the actual process. You can check whether the mirroring's still running with "volprint -ht -g $diskgroup | grep RECOV", but that's about it.

Posted in: lsm , sysadmin , tru64 , work
February 26

Tech Zendo » Blog Archive » OS X swatch Packages [ma.gnolia] (Put together quickly (Haligan)) by MichaelBiven

Tech Zendo » Blog Archive » OS X swatch Packages

OS X swatch packages (both PPC and x86)

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Posted in: logging , mac , os x , swatch , sysadmin
February 21

Dear neighbours ... (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Please excuse the odd sounds coming from my appartment. I did not mean to wake you up, or to scare you children. I'm working overtime because my scheduled change needs to be rolled back (darn you Oracle! why dost thy relink hang?!) and right now I'm running on a mixture of adrenaline and cocktail sausages.

So go back to bed. I promise I won't wake you up again.

In the next five minutes ... :D

Posted in: adrenaline , sysadmin , tired , work

I've never liked HP-UX that much ... (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

I've never been overly fond of HP-UX, mostly sticking to Solaris and Mac OS X, with a few outings here and there. Given the nature of one of my current projects however, I am forced to delve into HP's own flavour of Unix.

You see, I'm building a script that will retrieve all manner of information regarding firmware levels, driver versions and such so we can start a networkwide upgrade of our SAN infrastructure. With most OSes I'm having a fairly easy time, but HP-UX takes the cake when it comes to being backwards :[

You see, if I want to find out the firmware level for a server running HP-UX I have two choices:
1. Reboot the system and check the firmware revision from the boot prompt.
2. Use the so-called Support Tools Manager utility, called [x,m,c]stm.

CSTM is the command line interface to STM and thank god that it's scriptable. In reality the binary is a CLI menu driven system, but it takes an input file for your commands.

For those who would like to retrieve their firmware version automatically, here's how:

...

Uhm... FSCK! *growl* *snarl* What the heck is this?! For some screwed up reason my shell keeps on adding a NewLine char after the output of each command. That way a variable which gets its value from a string of commands will always be "$VALUE\n". WTF?! o_O

I'm going to have to bang on this one a little more. More info later.

Posted in: command , firmware version , hp-ux , retarded , sysadmin
February 20

The Tao of Mac - RRDTool/Snippets [ma.gnolia] (Put together quickly (Haligan)) by MichaelBiven

The Tao of Mac - RRDTool/Snippets

What follows are several sample snippets of [RRDTool]

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Posted in: mac , os x , rrdtool , sysadmin

Monitor Network Services with Nagios - Part 1 [ma.gnolia] (Put together quickly (Haligan)) by MichaelBiven

Monitor Network Services with Nagios - Part 1

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Posted in: mac , nagios , os x , sysadmin

Nagios HOWTO for OS X - Part 2 [ma.gnolia] (Put together quickly (Haligan)) by MichaelBiven

Nagios HOWTO for OS X - Part 2

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Posted in: mac , nagios , os x , sysadmin

FrJo.info » Installing Cacti in Mac OS X Server [ma.gnolia] (Put together quickly (Haligan)) by MichaelBiven

FrJo.info » Installing Cacti in Mac OS X Server

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Posted in: cacti , mac , os x , sysadmin
February 11

I never thought I'd say this ... (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Over the past year a career in the military has started to sound pretty good to me.In the past I was always very much against the idea of joining up, mostly because of my distaste for anything related to war, which is what makes me so surprised about the change to my inclination. It's been a gradual process mind you, fed in part by my brother in law who's in the airforce, by Menno who tried to get into the commandos and by getting glimpses into dutch military life (televised they may have been, yet still they were glimpses).

As I said I'm rather opposed to the whole idea of war and I have no particular fondness or pride for my country, but there are other parts of a career in the military that attract me. Now I'm not saying that I'm going to make a switch at the drop of a hat or that I'm even going to. It's just something that I'm adding to my list of possibilities if I ever get tired of corporate IT. In case you're curious, other items on the list include carpentry, cooking and gardening/landscaping.

This blog post was brought on by one of JeffX's buddies suggesting a military career to Jeff, knowing that he's not that interested.

Posted in: career , military , sysadmin
January 31

Macenterprise.org [ma.gnolia] (Put together quickly (Haligan)) by MichaelBiven

Macenterprise.org

Daylight saving time laws were enacted in 2005 that take affect this March 11th 2007. John M. Flender put together a great list of patches to handle the switch for different operating systems, hardware and software.

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Posted in: daylight saving time , linux , mac , os x , sysadmin , windows
January 26

The necessity of good reporting (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Finally, I've finised my fourth article for ;Login magazine. It'll appear in next month's issue, in the sysadmin section.

As is the tradition with my articles, I'll try to entice my fellow folks in IT to improve their "soft skills". In the past I've covered things like personal planning and various communications skills. This time I'll try to convey why good reporting is so important to your work and your projects.

HTML version.
PDF version.

Posted in: ;login: , reporting , sysadmin , work
January 21

Ye olde IT traditions (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

A cat sleeping on top of a laptop
Marlijne and I got into an interesting discussion this evening, seeing how she doesn't agree with some of the preferences I have regarding my work in IT. You see, I've always been very fond of books like The cuckoo's egg (Amazon link) and The soul of a new machine (Amazon link). These are books that delve into the IT/hacker sub-culture of the seventies and eighties, an era that I would have loved to live in. These were the guys walking among gritty consoles, huge clunkers of servers and dimly lit offices. They were the ones debugging new hardware using oscilloscopes and the ones who slept under their desks to keep vigil over their systems.

And it's exactly that last habit that Marlijne so strongly disagrees with...

For me, pulling an all-nighter and then crashing under my desk for a few hours before I drive home adds colour to my daily work. It makes a boring desk job just a little more special and thus (to me) exciting. Yes, of course I could just take a cab to the office and also call one to come and get me again and I guess that would be the sensible thing to do. I'd be safer, I'd be more rested and I wouldn't be "that odd geek".

But then I'd be missing out on a little bit of extra enjoyment of my work. And I figure that, while I'm still in my twenties, I can still get away with it :3

What do you guys think? Is this a harmless whim of mine? Or is it something that's utterly stupid and that could harm my career? Posted in: it traditions , sleep under my desk , sysadmin , work

Welcome to the graveyard shift (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Snoopy and Woodstock, looking very sleepy
Last week finally rang in at fifty-four hours, in part due to some unforeseen technical difficulties and some scheduled downtime, but also due to our preparations for a large software upgrade. A few of our servers still require the latest patch kit (a group of software patches that can be installed all at once) and we're going to see to it that they get their upgrades :)

A lot of last week's overtime was spent on preparations for this project: making sure that as many console servers as possible work and testing each part of the upgrade procedure meticulously. My colleague Ben and I made it just in time as we dotted the last "i" at 20:30, on Friday.

The thing with patch clusters is that they're best applied when the server isn't really up and running. And taking these beasties down has to happen in the evening or in the dead of night, 'cause they're needed by the company during the day. Which means that a few of us will be stuk in the graveyard shift for the next six-odd weeks.

Now don't get me wrong: I actually _enjoy_ this kind of work. I've missed working on difficult tasks in the dead of night, ever since I left ING Bank. As I mentioned a few days ago, the last year-and-a-half has been nothing but ordinary desk work with forty hour weeks. But now I get to tinker with the boxen again... to sleep under my desk... to run on adrenaline and caffeine. ^_^ Glee!

I'm sure though that, once these six weeks are over, the glamour will have worn off. I'll be tired and I'll probably have a cold. Not to mention that I'll be back to my pudgy, old self because I won't be getting any cycling done. :/

But still, at least I like my work again! :) Posted in: graveyard shift , i'll sleep when i'm dead , patching , sysadmin , work
January 4

New assignment? New mission badge! (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

The mission badge for Snow at T-Systems
Some of you may remember last year's blog post about the KPN mission badge. Well since I'm at a new assignment these days I've taken half an hour to bang together a new badge!

I'm aware that this habit is at least a little silly since our line of work really isn't like the army, but it's still one I like. On the one hand it gives me the opportunity to flex my creative muscles, while on the other hand it feeds my craving for a 80's hacker subculture.

Anywho: that's the new badge, up on the left. Just like with the previous badges (here's the one for UPC) I've used a catch phrase that's coined relatively often on the work floor, combining it with an appropriate image. This time around I've used one of the cat images from the recent I'm in your house ... Internet meme: stoned kitten.

To elaborate just a little: my colleague Casper introduced the habit of answering any tough question to which you could not in any way know the answer with "Ya man", complete with a rather blank stare. This tagline has since then been promoted to higher level where it's used in silly situations as well. Posted in: mission badge , silliness , sysadmin , work
January 3

Inter-departmental communications: how it should NOT be done. (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

Who talked to whom?
Today I had the chance to work on a hugely interesting incident involving a Tru64 server that keeps crashing at random moments. After each crash HP says it's a failing RAM module and that they will come and replace one or more DIMMs. But each time the problems return and the system goes down in flames again.

So today we started thinking that the problem might be caused by some weird and completely fscked up bug that was born from the combination of SAP, the OS, all the patches applied to the box and the hardware configuration. Who knows? Maybe there's some stupid, little gremlin hiding away in that system waiting for SAP to perform one very specific memory instruction, causing the whole box to bite the dust.

I've seen it happen before with other applications, so why would SAP be any different?

Anyway, trying the get our issues resolved required coordination between all parties involved, with HP and with SAP in Germany. Lemme tell ya, that's one big fscking plate of spaghetti! Below, for your viewing pleasure, are the communications paths that were open over the course of the day.

Messed up I say...

EDIT:
Fsck... The image wrapping is giving me a hard time. Give me a minute. Why can I never figure out how to make text drop below an image, instead of starting next to it?!

I've given up on inlining the image, so here's the link to the full size image. Posted in: communicating , itil , spaghetti , sysadmin , work
December 14

Got my LPIC-101 (Kilala.nl (Cailin Coilleach)) by Cailin Coilleach

This morning I went to my local Prometric testing center for my LPI 101 exam (part one of two, for the LPIC-1). On forehand I knew I wasn't perfectly prepared, since I'd skipped trial exams and hadn't studied that hard, so I was a little anxious. Only a little though, since I usually test quite well.

Anywho: out of a maximum of 890 points I got 660, with 500 points being the minimum passing grade. Read item 2.15 this page to learn more about the weird scoring method used by the LPI. It boils down to this: out of 70 questions I got 61 correct, with a minimum of 42 to pass. If we'd use the scoring method Sun uses, I'd have gotten an 87%. Not too bad, I'd say!

I did run into two things that I was completely unprepared for. I'd like to mention them here, so you won't run into the same problem.

1. All the time, while preparing, I was told that I'd have to choose a specialization for my exam: either RPM or DPKG. Since I know more about RPM I had decided to solely focus on that subject. But lo and behold! Apparently LPI has _very_ recently changed their requisites for the LPIC-1 exams and now they cover _both_ package managers! D:

2. In total I've answered 98 questions, instead of the 70 that was advertised. LPI mentions on their website (item 2.13) that these are test-questions, considered for inclusion in future exams. These questions are not marked as such and they do not count towards your scoring. It would've been nice if there had been some kind of screen or message warning me about this _at_the_test_site_.

Anywho... I made and now I'm on to the next step: LPIC-102. Posted in: lpic-101 , sysadmin , work
December 4

AFP548 - Xeon Xserve note for systemsetup Command [ma.gnolia] (Put together quickly (Haligan)) by MichaelBiven

Beware of using ARD's Send UNIX command feature with systemsetup on the new Xeon Xserves, the binary in ARDAgent.app is out of date. Check out Apple KB#305668.

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Posted in: mac , sysadmin , xserve