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Gumball Gumption
Jan 7, 2012

Daylen Drazzi posted:

The benefits of a college degree from an employer's standpoint is that you have the willingness to undertake a task that has an unfixed completion date, uncertain financial backing, vague goal, and indeterminate ROI. Once you've completed a course of study you have proven that you are determined enough to open yourself to a wide range of experiences and subjects, and intelligent/stubborn enough to meet the requirements to be awarded a degree. All of that requires commitment. If an employer has to pick between an individual who has 5 years of IT experience and a bachelor's degree, or a guy who has ten years of experience in IT but no degree, who should it be? I know my choice, and I know the choice of most of those who have degrees as well - you go with the guy who's proven he can hack all the bullshit, late nights, early mornings, split shifts, constantly evolving schedules, red tape, and maneuvering through bureaucracy, all the while avoiding the lure of over-indulging in drinking, drugs, sex, and partying.

I take nothing away from those people who have the self-discipline and control to climb the ladder, but some people would consider them to lack a long-term focus, concentrating only on the short-term gain. Sorry, but you have to have an MBA to be allowed to do that.

One person has 9 years of working insane hours late, dealing with red tape, bureaucracy, and avoiding a substance abuse problem. The other has 10 years of experience with that. Seems like a tough choice.

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evol262
Nov 30, 2010
#!/usr/bin/perl

Dr. Arbitrary posted:

I asked about NTP about a year ago, but that was when I barely understood anything.

Now, as someone with one whole year of experience in IT, I'm interested in setting up a reliable time standard like a pro.

I have several sites, each with two or more VMware clusters. We're pretty much 100% windows.

My plan is to get a handful of crappy windows desktops. One will be the master and look at pool.NTP.org for time.
The others will look at the master. It seems like there should be a way to get the guys on the same stratum to check each other but I'm still figuring that out.

What I've been thinking of doing for the next stratum down was building a VM in Unix or Linux that does only NTP. The problem is that I've never worked with Unix or Linux.

I'm sure this sounds painfully simple but it's a big deal for a guy on help desk.

Does this sound like a fairly reasonable plan? Any recommendations on an OS to use for the NTP VMs?
While I'd like to use something that will have low overhead and be reliable, I'd also like to use an OS where the experience would be valuable for career development.

Get a cheap USB GPS dongle and you can set up stratum 1 servers.

skipdogg
Nov 29, 2004
Resident SRT-4 Expert

NTP chat.

A lot of our internal engineering stuff at my company is dependent on having an accurate and consistent time source. We have 2 servers with actual hardware radio GPS doodads (Meinberg units) that act as our internal Stratum 1 time servers. Then across all our sites a local Linux server, usually the CVS mirror for the site, runs NTP as a stratum 2 time server. Linux clients are pointed to those servers.

On the Microsoft side of things, our Domain Controller that holds the PDC role is pointed to our internal Strat 1 servers, making it a strat 2 server. All other DC's are pointed to the PDC (as they should be) making the local site DC's strat 3 servers. The end result is we have very accurate and consistent time across the entire enterprise on both Linux and Microsoft clients.

A note about Microsoft systems... Microsoft AD and the underlying technologies (Kerberos) care more about a consistent time across the domain, than being 100% accurate. If all sites and clients are off by 10 minutes.. no problem. One site off by 6 minutes from another, and that's no good at all which is why the DC holding the PDC emulator role should be the authoritative time source for a AD domain.

Also make sure any Virtual Machine hosts you have are all configured properly. I had a few remote sites where they system clock in the BIOS was never set, and the host software was pulling a very wrong time and passing it on to the clients. Hyper-V has a VM option for passing time to the guest VM and I turn that off as I've found it will override the OS level windows time sync. I don't think the VMware one will override a guest's time, but if you're trying to bring up a new server it can cause issues.

Vulture Culture
Jul 14, 2003

I was never enjoying it. I only eat it for the nutrients.

skipdogg posted:

NTP chat.

A lot of our internal engineering stuff at my company is dependent on having an accurate and consistent time source. We have 2 servers with actual hardware radio GPS doodads (Meinberg units) that act as our internal Stratum 1 time servers. Then across all our sites a local Linux server, usually the CVS mirror for the site, runs NTP as a stratum 2 time server. Linux clients are pointed to those servers.

On the Microsoft side of things, our Domain Controller that holds the PDC role is pointed to our internal Strat 1 servers, making it a strat 2 server. All other DC's are pointed to the PDC (as they should be) making the local site DC's strat 3 servers. The end result is we have very accurate and consistent time across the entire enterprise on both Linux and Microsoft clients.

A note about Microsoft systems... Microsoft AD and the underlying technologies (Kerberos) care more about a consistent time across the domain, than being 100% accurate. If all sites and clients are off by 10 minutes.. no problem. One site off by 6 minutes from another, and that's no good at all which is why the DC holding the PDC emulator role should be the authoritative time source for a AD domain.

Also make sure any Virtual Machine hosts you have are all configured properly. I had a few remote sites where they system clock in the BIOS was never set, and the host software was pulling a very wrong time and passing it on to the clients. Hyper-V has a VM option for passing time to the guest VM and I turn that off as I've found it will override the OS level windows time sync. I don't think the VMware one will override a guest's time, but if you're trying to bring up a new server it can cause issues.
I might be missing something here, but are you saying you have a pile of machines that are only configured against a single NTP server?

evil_bunnY
Apr 2, 2003

skipdogg posted:

NTP chat.

A lot of our internal engineering stuff at my company is dependent on having an accurate and consistent time source. We have 2 servers with actual hardware radio GPS doodads (Meinberg units) that act as our internal Stratum 1 time servers. Then across all our sites a local Linux server, usually the CVS mirror for the site, runs NTP as a stratum 2 time server. Linux clients are pointed to those servers.
Did you introduce a distributed SPOF on purpose? That's pretty humorous.

Dr. Arbitrary
Mar 15, 2006

Bleak Gremlin

evol262 posted:

Get a cheap USB GPS dongle and you can set up stratum 1 servers.

Now that is a cool idea!

pram
Jun 10, 2001

skipdogg posted:

We have 2 servers with actual hardware radio GPS doodads (Meinberg units) that act as our internal Stratum 1 time servers.

skipdogg posted:

Then across all our sites a local Linux server, usually the CVS mirror for the site, runs NTP as a stratum 2 time server. Linux clients are pointed to those servers.

Whats the point lol

Inspector_666
Oct 7, 2003

benny with the good hair

evol262 posted:

re: certchat. Literally never had one. Don't see the point in anything other than CISSP, PMP, CCN*. RCH* is great and everything, and I should probably at least get a RHCE, but nobody's ever asked or cared about my certless, degreeless state.

I'm so jealous of you people and also hate you.

psydude
Apr 1, 2008

Misogynist posted:

I might be missing something here, but are you saying you have a pile of machines that are only configured against a single NTP server?

We had to switch to that on our development network after the clock in our 6509 (acting as the source for half of the workstations) reset and effectively locked down our branch office. It was a pretty flawed design, so we jut pointed everything to the PDC because there was no way to point to an external stratum 1 time server.

e: re: Certs: It seems like certs are a lot more important in the networking sector than in other areas. Like, having a CCIE isn't just a nice thing to put on your resume. It actually has a large and beneficial impact on your career.

psydude fucked around with this message at 02:34 on Mar 9, 2014

Alereon
Feb 6, 2004

Dehumanize yourself and face to Trumpshed
College Slice

Misogynist posted:

I might be missing something here, but are you saying you have a pile of machines that are only configured against a single NTP server?
Forgive my ignorance, but why is this a problem? It seems like you could have your NTP server literally catch fire with no backups and have to order and configure a brand new machine and your clocks wouldn't drift enough during that time period for it to matter. I mean I get why you'd want to be fault tolerant but it seems like internal NTP is the kind of service where downtime is quite tolerable.

Paladine_PSoT
Jan 2, 2010

If you have a problem Yo, I'll solve it

Alereon posted:

Forgive my ignorance, but why is this a problem? It seems like you could have your NTP server literally catch fire with no backups and have to order and configure a brand new machine and your clocks wouldn't drift enough during that time period for it to matter. I mean I get why you'd want to be fault tolerant but it seems like internal NTP is the kind of service where downtime is quite tolerable.

The problem is is a functional NTP server grabs inaccurate time, as in the incident mentioned above. A functioning server with a single bad time source means your entire enterprise has bad time.

dogstile
May 1, 2012

fucking clocks
how do they work?

evol262 posted:

re: certchat. Literally never had one. Don't see the point in anything other than CISSP, PMP, CCN*. RCH* is great and everything, and I should probably at least get a RHCE, but nobody's ever asked or cared about my certless, degreeless state.

I literally have CCNA and a degree that I dropped out of at the end of the second year (spent the entire year caring for my mum who was hospitalised). Nobody gave a poo poo that I dropped out of my degree, because I could prove my grades were good until I had to take care of my family. What people did give a poo poo about was my lack of experience, but were willing to at least interview me, because I explained it in the cover letter (I figured preemptively explaining why i had a certificate rather than a degree from a degree course was the better option).

Risky loving move, but it garnered interest and actually nabbed me a job.

Contingency
Jun 2, 2007

MURDERER

dogstile posted:

I literally have CCNA and a degree that I dropped out of at the end of the second year (spent the entire year caring for my mum who was hospitalised). Nobody gave a poo poo that I dropped out of my degree, because I could prove my grades were good until I had to take care of my family. What people did give a poo poo about was my lack of experience, but were willing to at least interview me, because I explained it in the cover letter (I figured preemptively explaining why i had a certificate rather than a degree from a degree course was the better option).

Risky loving move, but it garnered interest and actually nabbed me a job.

That'd be the question I'd have--with financial aid being widely available, why would someone decide not to go to school?
Military? Understandable. Forced into a breadwinner role? Also understandable. Goofed around for a few years instead and are now trying to break into the industry? Someone else can take a chance on you. Online schools wouldn't erase poor choices, but if you've got a solid tech background already, where you got your degree from isn't really that important.

dogstile
May 1, 2012

fucking clocks
how do they work?
I can understand people being scared of debt. From what I hear America has a horrid system for debt that means your student loans actually count as a debt and can be used against you as such.

Here in the UK student loans, while they are debt, don't really count as debt, so you don't have to state that you owe x amount to a student loan company when buying a house, etc.

E: Or at least, that's what i've been told.

Roargasm
Oct 21, 2010

Hate to sound sleazy
But tease me
I don't want it if it's that easy
Financial "aid" is also a 6.8% interest loan, regardless of your credit history, whereas in the past the money was 1.5-2% interest (making it effectively free)

Bob Morales
Aug 18, 2006


Just wear the fucking mask, Bob

I don't care how many people I probably infected with COVID-19 while refusing to wear a mask, my comfort is far more important than the health and safety of everyone around me!

You're also giving 18 year old kids credit, which is a bad, bad idea.

Not everyone makes the smartest decisions with financial aid. They don't go to a 2-year school for the basics, or even a local college, don't work part time, buy other things with financial aid money than tuition and books...

That said college can be really, really expensive but it's not surprising how fancy some of the on-campus housing has gotten and how much costs have just straight up skyrocketed.

When your dad talks about working his way through college flipping burgers, he stayed in a pretty basic dorm and didn't have a Starbucks every day before class.

MC Fruit Stripe
Nov 26, 2002

around and around we go
Yeah but 6.8% is like soooo much less money than my Nordstrom card so it's probably fine.

Daylen Drazzi
Mar 10, 2007

Why do I root for Notre Dame? Because I like pain, and disappointment, and anguish. Notre Dame Football has destroyed more dreams than the Irish Potato Famine, and that is the kind of suffering I can get behind.
I remember when I started college back in 1990 - for 10.5-18 credit hours per quarter (not semester) it cost a grand total of $640. By the time I graduated in 1999 (I worked full-time and went to school when I could fit it in) it was closing in on $1700. I just checked the prices and they've switched to a semester system and it costs just under $4300 a semester. There would be no way in hell that I would ever be able to pay for school and graduate debt free now like I did way back when.

With the changes in bankruptcy law to prevent people from discharging their student loan debts there's even more incentive by loan companies to issue student loans to applicants. Defaulting doesn't do a drat thing for those people who can't afford to pay, which in turn drives up the interest rate. It's a vicious circle that keeps driving the cost of education up, and much like the housing bubble I have a feeling it's going to reach a critical point at some juncture.

darthbob88
Oct 13, 2011

YOSPOS

Bob Morales posted:

When your dad talks about working his way through college flipping burgers, he stayed in a pretty basic dorm and didn't have a Starbucks every day before class.
He also probably was paid more for flipping burgers, and paid less for college. Another article, making the comparison clearer.

AlternateAccount
Apr 25, 2005
FYGM

Contingency posted:

That'd be the question I'd have--with financial aid being widely available, why would someone decide not to go to school?

Money isn't free. This kind of thinking has led to a trillion dollars in education debt.

dogstile
May 1, 2012

fucking clocks
how do they work?

Bob Morales posted:

Not everyone makes the smartest decisions with financial aid. They don't go to a 2-year school for the basics, or even a local college, don't work part time, buy other things with financial aid money than tuition and books...

Stop reminding me of my mistakes, dammit! :argh:

psydude
Apr 1, 2008

dogstile posted:

I can understand people being scared of debt. From what I hear America has a horrid system for debt that means your student loans actually count as a debt and can be used against you as such.

Here in the UK student loans, while they are debt, don't really count as debt, so you don't have to state that you owe x amount to a student loan company when buying a house, etc.

E: Or at least, that's what i've been told.

Not really. Student loan debt isn't "bad" debt in the same way that $12000 of unpaid credit cards is "bad". The problem with student loan debt is that there's no way to escape it, not even by declaring bankruptcy. There's also a big issue with for profit colleges targeting low-income areas with tuition fees that conveniently match the maximum loan amount for student loan debt.

I came away from undergrad with around 20k in loans (all due to room and board) and it's easily managed (but then again I also have a job that pays substantially more than most people in my generation make). I plan to start aggressively paying it down once my car loan is gone.

e: I'm paying for grad school straight up with the money I've saved up from Afghanistan. Because even though the loans aren't that bad, gently caress taking out more.

psydude fucked around with this message at 02:52 on Mar 10, 2014

Contingency
Jun 2, 2007

MURDERER

AlternateAccount posted:

Money isn't free. This kind of thinking has led to a trillion dollars in education debt.

Alternative is to learn a trade, or work retail/food service for the next 40 years. Sometimes you have to spend money to make money.

adorai
Nov 2, 2002

10/27/04 Never forget
Grimey Drawer

Contingency posted:

Alternative is to learn a trade,
1) IT is a trade
2) a bachelors degree is not a prerequisite* like it is for say, accounting.

*some employers require a bachelors for IT employers, many do not

psydude
Apr 1, 2008

The moral of the story is go to college or don't, it's your loving life and your money. You don't actually need a degree to do this job, or most jobs in most industries, really. A college education is what you make of it, and if you go into it thinking "well these courses aren't going to teach me X hard skill for Y field!" then you're missing the point entirely.

dogstile
May 1, 2012

fucking clocks
how do they work?
But seriously, if you got to a college, try and go to one that has its affairs in order. I went to some lovely college/uni and most of my teachers were quitting, so it only made sense that a lot of the students did the same.

Fiendish Dr. Wu
Nov 11, 2010

You done fucked up now!

psydude posted:

The moral of the story is go to college or don't, it's your loving life and your money. You don't actually need a degree to do this job, or most jobs in most industries, really. A college education is what you make of it, and if you go into it thinking "well these courses aren't going to teach me X hard skill for Y field!" then you're missing the point entirely.

"when am I ever going to use this math in the real world" ~wants to be a programmer

Bob Morales
Aug 18, 2006


Just wear the fucking mask, Bob

I don't care how many people I probably infected with COVID-19 while refusing to wear a mask, my comfort is far more important than the health and safety of everyone around me!

Fiendish Dr. Wu posted:

"when am I ever going to use this math in the real world" ~wants to be a programmer

You could write CRUD apps for the rest of your life and never use anything beyond basic math.

psydude
Apr 1, 2008

Fiendish Dr. Wu posted:

"when am I ever going to use this math in the real world" ~wants to be a programmer

To be fair, programmers don't need to know much math. It's the software engineers and developers that do.

GreenNight
Feb 19, 2006
Turning the light on the darkest places, you and I know we got to face this now. We got to face this now.

I got an Associates degree in IT and took zero math classes. I do know of local companies that refuse to hire anyone without a bachelors though.

Bob Morales
Aug 18, 2006


Just wear the fucking mask, Bob

I don't care how many people I probably infected with COVID-19 while refusing to wear a mask, my comfort is far more important than the health and safety of everyone around me!

GreenNight posted:

I do know of local companies that refuse to hire anyone without a bachelors though.

HR is broken.

"You know jack poo poo about IT? You have no experience? You have terrible concepts of networking and how anything is supposed to work? Oh, but you have a degree? Here's the job!"

GreenNight
Feb 19, 2006
Turning the light on the darkest places, you and I know we got to face this now. We got to face this now.

Well, it's mainly Epic Systems that puts down that qualification. That's why they keep flying people in from all over the world to work there, hard to find 7000 employees locally. Madison, WI here.

I was told that I wouldn't get hired just because I don't have a bachelors, which irritate me.

dogstile
May 1, 2012

fucking clocks
how do they work?

Fiendish Dr. Wu posted:

"when am I ever going to use this math in the real world" ~wants to be a programmer

This was literally me and to be completely honest I never really saw a reason for a lot of the poo poo I learned in my maths classes. I managed to get through most of my assignments without getting stuck for to long and I got decent grades, although it's probably a good thing I went towards Sysadmin in the end because I have completely forgotten everything I learned, much to the amusement of the WOT goons.

<
< Oh poo poo, this should tell you all you need to know.
<

BaseballPCHiker
Jan 16, 2006

I cant think of a time when I needed a ton of math knowledge or skills during my IT career. Nothing beyond your normal day to day math, maybe with learning to subnet some.

AlternateAccount
Apr 25, 2005
FYGM

GreenNight posted:

I was told that I wouldn't get hired just because I don't have a bachelors, which irritate me.

Is there potentially an angle they're playing regarding visas? Where having requirements that are difficult to meet locally would allow them to import employees instead?

Stanos
Sep 22, 2009

The best 57 in hockey.
If it's the same Epic Systems that works with MUMPS, my guess is they are getting tired of paying for psychiatrists and find it easier to go overseas and then send them off when they start to go crazy. :v:

Bob Morales
Aug 18, 2006


Just wear the fucking mask, Bob

I don't care how many people I probably infected with COVID-19 while refusing to wear a mask, my comfort is far more important than the health and safety of everyone around me!

BaseballPCHiker posted:

I cant think of a time when I needed a ton of math knowledge or skills during my IT career. Nothing beyond your normal day to day math, maybe with learning to subnet some.

You don't, for IT. That's why I laugh when I see "COMPTUER SCIENCE DEGREE REQUIRED" for helpdesk and network admin jobs.

"Do you think if I had a computer science degree I wouldn't be applying for a programming job at company X (hopefully making way more cash, being a brogrammer, and drinking free Bawls all day)"

GreenNight
Feb 19, 2006
Turning the light on the darkest places, you and I know we got to face this now. We got to face this now.

Stanos posted:

If it's the same Epic Systems that works with MUMPS, my guess is they are getting tired of paying for psychiatrists and find it easier to go overseas and then send them off when they start to go crazy. :v:

Yep, same place. I'm not sure concerning the Visa angle.

Vulture Culture
Jul 14, 2003

I was never enjoying it. I only eat it for the nutrients.

Alereon posted:

Forgive my ignorance, but why is this a problem? It seems like you could have your NTP server literally catch fire with no backups and have to order and configure a brand new machine and your clocks wouldn't drift enough during that time period for it to matter. I mean I get why you'd want to be fault tolerant but it seems like internal NTP is the kind of service where downtime is quite tolerable.
Again, the issue isn't about clocks drifting. The issue is with the NTP server picking up the wrong time and distributing it to the entire rest of your infrastructure, breaking all cryptographic communications to basically every system in the world not using your broken fake-time (not to mention the other datetime-related fuckery and potential regulatory violations that would ensue). I suspect that the 2012 US Naval Observatory issue, where their NTP server told thousands of machines it was the year 2000, was brought about by an unintended BIOS configuration reset, which is something easily capable of happening to any on-premises NTP server anywhere.

The NTP protocol itself has failsafes in place to detect this sort of problem, and it will use them if you give it multiple servers to work with.

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Vulture Culture
Jul 14, 2003

I was never enjoying it. I only eat it for the nutrients.

BaseballPCHiker posted:

I cant think of a time when I needed a ton of math knowledge or skills during my IT career. Nothing beyond your normal day to day math, maybe with learning to subnet some.
I double-majored in computer science and math. I started out in IT and now kind of work in data science and the user analytics space, so not getting completely lost with stuff like model fitting to a least-squares regression has been a big help. I now list the math degree first on my resume, and I wish I had taken the math more seriously and the computer programming less seriously when I was in college.

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