The 14th day that DDOS anonymous attack www.Pandawill.com, Two weeks attacked twice by DDOS Hacker but still go down..IT groups are installing hardware firewall and Load Balancing now, anyone have good points??.
Hi,
I've recently aquired a Dell Poweredge 1850 (1U rackmount server). Spec wise, it's great for what I need it for (running VMWare with a few VMs, pfSense firewall etc). The problem is it's not going to sit in a server room / data centre and the fans in it are massively noisy!
I can handle a b...
We had an 1850 in the building room for a few days. Cleaning personal moved on of the tables a little bit nearer to the heating - and there you go: fans sound like a messerschmidt.
I love how with HP blades once they get very hot the fans actually go ultrasonic - they're super loud then...nothing... apparently the younger guys can still hear them but it's great for me
not many do to be honest but we have to stress test them every so often, plus we have some enclosures filled with max-CPU/max-mem BL2x220c's (i.e. 32 servers, 64 cpus, 384 cores, 768 threads, 3TB mem) for video encoding reasons - and they get quite hot with little provocation
I am going to add on to what some other people have said. First Rackmounts are designed to be in a DC where sound is irrelevant. That also means that they are designed to have an ambient temp ~65-70F, your room you have it in is most likely warmer so it has to move more air to pull the heat off. ...
@Jacob Didn't think you could in Server 2003. Thought upgrading to 8 would be the best bit (especially for the bits and pieces of the OS that depend on an IE engine)
does anyone here know some kind of dhcp client test program? Something that I could run locally on a linux server with the ability to set the router src ip (to simulate dhcp relay)
Thank you all, I've already suspected some of these items could be deleted, but never was sure enough to really do so. So all and everything brought us to 5,3GB.
So I've read up on that topic just a little bit and if I get it correctly I'm good to go. I've read on technet something about 1,2 GB for the Exchange Installation + 200 MB on the Systemdrive.
I've only ever really seen that syntax used when the scripts are damn near proper application size. So I suppose, at that point, I can believe that checking the variables directly each time could get rather onerous.
@ChrisS Don't know, I've never written bash scripts myself so I can't comment on why you'd do it that why, but that seems to be the reason. There doesn't seem to be a "right" way to do it
@Chopper3 No kidding. When I think back before reproduction occurred, it's hard to believe exactly how much time I thoroughly wasted, and how much I complained about not having enough free time.
@pauska Interesting. What you could do is edit the script and add a couple of debugging options.
At the top of the script you can add 'set -x' to print out everything as it gets executed, or 'set -e' to halt execution on the first error.
@Jacob it's just one of those things you won't learn until it's too late - basically in order to make a few bucks you need the experience and skills, you can then spend that money - great - except the very act of gaining that experience and skills takes a lot out of you, as does maintaining those skills - so when you do have the money you don't have the time or energy to really make use of it.
@pauska @packs Sorry to ressurect the conversation, but the "$1x" thing is a portable way to check for empty strings. You can use "" or [ -z $string] but it will not work on all shells/versions.
@pauska and $1x is just simple interpolation with the first argument, but it was already said.
@packs Same here, if it fits in one of them that's where I log to. If I'm going to dump a ton of log data, especially for a one time ting, I'll just put it to it's own file.
I know this is sad but I've been at all of the base-2 numbers up to and including 16384 in the past and I'm about to get to 32768 (I'll have to drop a downvote on some poor schmuck to get it exact) but I just had to mention it :)
We have a couple of production systems that were recently converted into virtual machines.
There is an application of ours that frequently accesses a MySQL database, and for each query it creates a connection, queries, and disconnects that connection.
It is not the appropriate way to query (I kn...
@MarkM In a manner of speaking. I finished my coursework and have been 'working' on my thesis while being in the field. I've sat in on a few classes during that time, but not as an enrolled student.
I have a professor trying to teach "Operating system architecture" and he keeps using Apt and Aptitude interchangeably and trying to explain how to use it on redhat
he's just incredibly out of touch and has no idea what he's rambling about
@packs that's what this is supposed to be, but most of the professors are CS professors, and the ones that aren't are just awful. So it would be more beneficial to just have a vanilla CS program instead
I feel really bad for the students in the class that don't know better. At least I know to tune him out.
We use a lot of Indian subcontractors who can only stay in the UK for 2 years at a time, so each time we get a new bunch over I genuinely enjoy spending 2-3 days with them all whiteboarding everything we do, how and why - it's very fulfilling I find - also useful for spotting those that'll be going home much sooner that the rest :)
The CS and ITS do have some cross-listed courses, but only 1 or 2, and they're at the 400/500 level. Otherwise they actually have separated pretty wel.
@MarkM I am in school for my Masters in CS and I see the same problem as you. Teachers are very out of touch with current events in computing... although I do hear them lament that the "Technology" of computers is not the same as the "Science" of them. The ITS/CS split.
Americans know these generalizations... and sometimes take advantage of them... I know more Spanish than I'd let on while I'm in Mexico. It's probably the same case with the natives around me.
that said IT/technology etc is a HUGE subject, nobody can cover everything and it would also be unreasonable for them to be right up to date with everything too - you should expect them to be 2-4 years out of date, no more than that though, that would just be laziness
@DaveDrager Yeah, except that it's really an excuse for them to be lazy. Once you have tenure, you're invincible. Tenure is OK in something like Math where it doesn't change ever, except in the highest level. In something like IT, what you knew 10 years ago is worthless.
Working in University IT means I have zilch to do with CompSci. There is a firewall there that is rigorously manned on the other side. I know their IT people, and can occasionally get them to talk to me, but that's about it.
@MarkM In IT that's true. In CS it's not quite the same -- the basics of architecture haven't changed much in 50+ years, and doing complexity analysis is the same as it's always been :)
In my last CS course, "Foundations of Computer Science" we used a book from the 80s. I'm not sure if it is the best choice or not, but we were learning about stuff probably invented in the 50s/60s, things like Turing machines.
@voretaq7 yeah, the point of the program that started this discussion is hands-on style IT relevant knowledge. It was an offshoot of the CS program meant to give people a leg up that wanted to get into systems administration.
Mark, I'll probably be making some employment changes here soon and will be in Philly as well. I work in West Chester at the moment, so you can guess my University.
I drive. I should probably take a train, but I'd have to take a regional to 30th st station and then catch something on the broad st line. It would end up being a beast of a trip either way.
At least this way I get to make use of my parking permit heh
Cool. As long as things fall into place like I think they will, I'm hoping to get a sysadmin group in the Philly area together for meetings similar to what they are doing in NYC. So hopefully you can join.
I'm on the discuss mailing list, which is interestingly busy at times. It was booming up until last week when it has tapered off to more normal levels.
I am trying to find a good IT event to go this year. I can make 2 trips to conventions outside my country so I am aiming for DebConf and something else I find on the way. Lopsa calendar helps with that.
I'm trying to dig the money for BSDCan out of my budget this year; will be going tie the ITA Spring Conference too (probably their Fall conference as well, we'll see).
@coredump: Clarion + celerra combined from what I've understood?
@Chopper3 Well, I'm told that these are similar to equallogic, you get all features with every box
It's actually hard to find good blog posts about it, cause every single post with comments enabled have a hitler army of emc/netapp employees bashing at each other
do these VNX/VNXe's have the per/TB licencing that a lot of their other stuff does? I won't buy anything with that kind of licencing, I would rather pay a larger one-off fee for unlimited LTU that by volume - had that argument with 3Par and won, wouldn't have it with anyone else either
Windows NT to 2000 Active Directory HELP!!
I had a windows NT machine as our PDC, I did the following steps and I screwed up the entire system. Please help.
System A, WinNT was PDC
I created another system (B) winnt, made it BDC, synchronized it with PDC and then promoted it to PDC
I installed...
Well all I can say is that if I had to choose from a literally unknown EMC product and ANY netapp box at the same price/GB I'd go with EMC every time - I fricking HATE netapps
the problem with looking at any of this kit is that you need to know the costs - not just the day one costs but the support/licence/expansion/add-ins costs - certainly there's nothing leaping out of their site that worries me
I mean it's all SAS, dual controllers, all the right ports/protocols, I know their software's not too complex (if wildchild can use it it's got to be easy right ;))
what I don't understand is why he's going from a 15 year old OS to an 11 year old OS
I'm always unsure about whether I want to join one of the sysadmin organisations. I just feel that they, like certifications, tend to attract a certain class of systems administrator that I don't particularly want to associate myself with. Just my opinion, but any respecting mid-level *nix sysadmin advertising their Network+ certification on their resume is below any similarly educated and experienced one without it.
Honestly, yes. For the low-level certifications, anyway. I might make an exception for, say, RHEL or RHCSS or similar, but my experience has been that administrators who either do not possess the certification or do not advertise it are much better at their job.
@Scrivener If you mean that they put their certs up there like a ticket for a free job, yeah. If it's mentioned near the end as an aside to their experience and accomplishments, not with you at all. The low level ones, like A+, yeah I agree...
I was once cornered at a trade show by a senior member of the British Computer Society who regaled me with tales of the benefits of being a BCS member - when my patience ran dry with him I simply said "You should spend more time making money for yourself and/or your customers than boring me" - he never asked again
@ChrisS Example: I had a Sr. Sysadmin candidate last week, ten years of experience as a lead sysadmin... and advertised his Network+ certification on his resume.
I do agree, the associations tend to have a full mix of IT "Professionals", but I don't think many people would heavily associate them with you if you both belonged to the same association.... But also something that doesn't really belong on a resume.
@Scrivener I have my certs on my CV, I don't wave them in peoples faces and proclaim that they make me a better sysadmin, I rely on my experience to show that, but If I've achieved something, it's going on my CV
A+ is not particularly taxing, and last time I looked, way out of date, but when I did it many years ago someone was paying me to do so and it didn't take very long!
I'm an external design consultant, nobody hires me for my certifications (most hire me because they know of me already), but I do put them down, if only to show I'm not resting on my laurels
I don't think anybody should really be getting hired because they have certificates (except maybe at a very low level), it should be on your experience and what you have demonstrated that you can do. But certs do have some value, I have to go and visit a lot of IT managers and PM's, they seem to trust my opinion more because I have certs. Not saying it's right, but that's the way it is.
The 14th day that DDOS anonymous attack www.Pandawill.com, Two weeks attacked twice by DDOS Hacker but still go down..IT groups are installing hardware firewall and Load Balancing now, anyone have good points??.
Hi,
I've recently aquired a Dell Poweredge 1850 (1U rackmount server). Spec wise, it's great for what I need it for (running VMWare with a few VMs, pfSense firewall etc). The problem is it's not going to sit in a server room / data centre and the fans in it are massively noisy!
I can handle a b...
Windows NT to 2000 Active Directory HELP!!
I had a windows NT machine as our PDC, I did the following steps and I screwed up the entire system. Please help.
System A, WinNT was PDC
I created another system (B) winnt, made it BDC, synchronized it with PDC and then promoted it to PDC
I installed...
