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• Password rules for yppasswd

  - by gstoynev

  Hello all, I have a NIS master-slave setup and I would like to improve the password rules/complexity for it. Seems like if I introduce new rules to the NIS Master they are applicable only from there. What I mean: I want minimal password length of 9 characters. On the NIS master if I run 'passwd' it obeys this requirement. If I run 'yppasswd' it just go to the default 6 characters. If I use 'chage -d 0 user1' to force a user to change a password, the user is prompted only when login on the NIS Master. The user's old password is still good to login at NIS clients. All machines are running Ubuntu 9.10 or 10.04. How I can strengthen yppasswd rules and make it warn users to change their passwords? Thank you all!

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• How to tell Vim to extend the background color to the whole screen?

  - by chiborg

  I have an issue with the Vim color schemes: The background color does not fill the whole screen. For example, in the "blue" color scheme the whole screen should turn blue. Instead, the blue background only extends to the end of each line. Is this a setting in the console I'm missing or is this an issue with my vim default settings? I'm only having this issue with Ubuntu 10.10. echo $TERM outputs xterm-color. [Update]: To eliminate error sources my minimal ~/.vimrc looks like this: filetype plugin on colorscheme blue syntax on /etc/vim/vimrc contains the unchanged defaults of Ubuntu

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• Postfix performance

  - by Brian G

  Running postfix on ubuntu, sending alot of mail ( ~ 1 million messages ) per day. loads are extremly high but not much in terms of cpu and memory load. Anyone in a similiar situation and know how to remove the bottleneck? All mail on this server is outbound. I would have to assume the bottleneck is disk. Just an update, here is what iostat looks like: avg-cpu: %user %nice %system %iowait %steal %idle 0.00 0.00 0.12 99.88 0.00 0.00 Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util sda 0.00 12.38 0.00 2.48 0.00 118.81 48.00 0.00 0.00 0.00 0.00 sdb 1.49 22.28 72.28 42.57 629.70 1041.58 14.55 135.56 834.31 8.71 100.00 Are these numbers in line with the performance you would expect from a single disk? sdb is dedicated to postfix. I think it is queue shuffling, from incoming-active-deferred More details from questions: Server: Quad core Xeon(R) CPU E5405 @ 2.00GH with 4 GB ram Load average: 464.88, 489.11, 483.91, 4 cores. but the memory utilization and cpu is minimal Postfix instances between 16 - 32

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• Do different operating systems have different read and write speeds?

  - by Ivan

  If I have two different operating systems, such as Windows 8 and Ubuntu, running on the same hardware, will the two operating systems have different read and write speeds? My guess is that there would be minimal difference between operating systems and read and write speeds to the hard disk since the major limited factor is seeking; however, different operating systems may use different file systems in order to attempt to reduce seek time in the hard disk. Likewise, I'm sure that modern operating systems will not actually write directly to the hard disk, and instead will just have it in memory and marked with a dirty bit. Are there any studies that show differences in read and write speeds between OSs? Or would the file system being used by the OS matter more than the OS itself?

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• How to manage credentials on multiserver environment

  - by rush

  I have a some software that uses its own encrypted file for password storage ( such as ftp, web and other passwords to login to external systems, there is no way to use certificates ). On each server I've several instances of this software, each instance has its own password file. At the moment number of servers is permanently growing and it's getting harder and harder to manage all passwords on all instances up to date. Unfortunately, some servers are in cegregated network and there is no access from them to some centralized storage, but it works vice versa. My first idea was to create a git repository, encrypt each password with gpg and store it there and deliver it within deployment system, but security team was not satisfied with this idea and as it is insecure to store passwords in repository even in encrypted view ( from their words ). Nothing similar comes to my mind. Is there any way to implement safe and secure password storage with minimal effort to manage all passwords up-to-date? ps. if that matters I've red hat everywhere.

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• I want to change hard drive. How to move system partition with Windows 7?

  - by Semyon Perepelitsa

  I've bought a new hard drive and want to move all my data to it. I had no problem with moving all files on non-system partition. But I don't know how to move system partiton. Now I have 3 partitions on the new disk, fist two was created by Windows installation CD (I tried to move system using internal tools, but it didn't work for me), third is filled with my successfully transferred data from old disk. And there are two partitions on the old disk: the first one is system (Windows 7) and the second one is my old main storage, that I already moved to the new hard drive and now it is empty. How can I change the placement of Windows 7 with minimal difficulties and losses, so I could work on the new hard drive just as I did it on the old one?

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• Mac OSX Server - Mac Mini to XServe Migration

  - by notpeter

  If I build out a Mac OSX Server install on a Mac Mini and then when it's ready for production I image the disks to an XServe, is there any reason the resulting system won't just work? Assuming I'm able to keep the same IP address are there any other issues I should be aware of? I'll be running minimal services, just AFP, SMB and Open Directory. TMI: My Intel XServe is full of cruft. Was originally a G4 XServe running 10.3, upgraded to 10.4 then migrated to 10.5 on the Intel XServe. I'd like a clean start, but can't spare the XServe downtime while I build out the install, can I just use a Mac Mini for dev and then switch to the XServe for production.

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• hiera_include equivalent for resource types

  - by quickshiftin

  I'm using the yumrepo built-in type. I can get a basic integration to hiera working yumrepo { hiera('yumrepo::name') : metadata_expire => hiera('yumrepo::metadata_expire'), descr => hiera('yumrepo::descr'), gpgcheck => hiera('yumrepo::gpgcheck'), http_caching => hiera('yumrepo::http_caching'), baseurl => hiera('yumrepo::baseurl'), enabled => hiera('yumrepo::enabled'), } If I try to remove that definition and instead go for hiera_include('classes'), here's what I've got in the corresponding yaml backend classes: - "yumrepo" yumrepo::metadata_expire: 0 yumrepo::descr: "custom repository" yumrepo::gpgcheck: 0 yumrepo::http_caching: none yumrepo::baseurl: "http://myserver/custom-repo/$basearch" yumrepo::enabled: 1 I get this error on an agent Error 400 on SERVER: Could not find class yumrepo I guess you can't get away from some sort of minimal node declaration w/ hiera and resource types? Maybe hiera_hash is the way to go? I gave this a shot, but it produces a syntax error yumrepo { 'hnav-development': hiera_hash('yumrepo') }

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• Do I need to rebuild the array after putting in a new hot spare?

  - by Shade34321

  So my experience with RAID is minimal. So I figured I'd come and ask here. We have a 16 drive RAID system that have 15 drives in RAID 5 with a hot spare left over. Recently one of the drives in the RAID was giving errors so I cloned it over to the hot spare and put a new drive in it's spot. I made the new drive the hot spare as I was told. I was told to rebuild the array after putting in the new drive as a hot spare so I tried and wasn't able to. So my question is do I need to rebuild it and if so why did it tell me I couldn't. Thanks! UPDATE: So I've come back up to work and looked at the RAID and it pulled in the hot spare into the raid and kicked out another drive.

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• Converting AVI to FLV in highest quality

  - by Josh

  I want to convert some of the AVI files I recorded (presentations) to FLV so I can host them on a website and offer them to my visitors. I have done this sort of thing before but the quality they came out as would not be good enough for what I plan on doing here. So does anyone have a link to a guide or any experience they can offer in converting AVI to FLV with minimal quality loss? A lot of my presentations are 720p aswell, so I'd want to keep the aspect ratio the same as the source video. Thanks in advance.

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• Joining computers from workgroup to active directory

  - by George R

  I have several computers at my office that I want to put on our domain. These computers currently are used by employees with local computer accounts and they have information stored under these accounts. When I join their computer to the domain how would or could I keep their current computer accounts and add them to the Active Directory so they could log in as usual access the network resources? Is this possible or do I need to just start from scratch on all this with their accounts and locally stored files? We are using Windows 2008 R2 and all systems being added have the Windows 7 pro or higher. All I want to really do is add the systems to the domain and have their accounts in the Active Directory so they can log in, access files which are already on their computer, and use network reosoures. If I can add their computer and then add same username and password to Active Directory to get this all to work that would be fine. I am just looking for minimal impact on the user really to get this done.

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• 256 SSD / 2TB Internal drive, i7, 16GB RAM.. explorer.exe still slow

  - by web_dvlp_sd

  OK, so I just got done tweaking my brand new PC and explorer.exe still manages to be sluggish not as snappy as I'd like or expected at all. Specs are i7 4th gen processor, 16GB RAM, windows 7 64 home premium on 256GB SSD, secondary internal 2TB drive. I assumed system would be lightning fast, been doing a bunch of researching and switched out a lot of different settings including enabling/disabling indexing, turning pagefile on/off or placing it on separate drive, turning folder optimization options on/off.. changes have been minimal or none at all. Any further advice or anything I might be missing, besides a new/repair install? PC is literally 3 days old I don't feel like I need a new install at all

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• Internet Explorer 6 Encountered An Error ntl.dll Issue on XP and Win2000

  - by Gary B2312321321

  As we have some PC's still running Windows 2000 and this is beyond our control we use IE 6 so we can keep the IE platform standard. Recently on some XP and Win2000 PCs IE has been crashing with the Encountered a Problem and Needs to close do you want to send a message to Microsoft error when entering some sites. This happens even after a format reinstall with minimal software load (Office 2000, some avaya software, kaspersky, tapiex.dll). The module pointed to in the error report is ntl.dll. There are lots of reports over the net of the problem but has anyone resolved this issue? (Latest IE6 updates are installed). Also please note there were no 3rd party IE addons, spyware, viruses or adware Hope someone can help.

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• Most efficient way to use a laptop like a desktop? [closed]

  - by user74757

  When I'm at home (which is the vast majority of the time now in Summer), I rarely use my laptop away from my desk. When it is at the desk, I plug in a monitor through HDMI, a power cable, and a mouse and keyboard that always stay there. I was wondering if anyone had any recommendations as to a good dock or product that does a good job of transforming a laptop into a true "desktop replacement." Ideally, it would allow all the connections to remain in place, with minimal effort to take the laptop in and out of the fixture. Thanks for any suggestions!

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• Performance affects of compressing Program Files on Windows / NTFS

  - by SRobertJames

  What are the performance affects of compressing Program Files on Windows NTFS? On a fast, multicore machine, the overhead of decompression is minimal. Machines are generally disk bound, and if you can reduce the disk load by compression, you often speed things up. (Microsoft says that the built in compression of Windows Search indexes actually improves speed for this reason.) On the other hand, Windows' virtual memory is complicated. Perhaps if files are compressed, they can't be paged out simply. And there may be other issues. In short: On a fast, multicore machine with a relatively slow disk, what performance affects will compressing Program Files have?

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• Instant messanger capable of offline messaging & tolerant of network interruptions

  - by Terry

  I am looking for an instant messaging solution to facilitate communications between recovery vehicles in remote rural areas. All the vehicles have internet connections, but they are intermittent depending on location. Ideally we'd like something that has the following features: Offline messaging: messages sent to clients who are offline will be delivered when they next come online, regardless of whether the sender is still online or not. Lightweight: CPU cycles are limited on the machines in these vehicles. A bloated solution will be an issue. Client platform is primarily win32, but support for osx/linux/mobile devices would be a bonus. Non-chatty: Bandwidth is a precious commodity for us, so services which use a minimal amount are ideal. Fault tolerant: We see plenty of packetloss and high latency, so whatever we use needs to be able to function in trying network conditions. I'm not fussed if we use a hosted platform like gtalk/skype/msn/icq/whatever, and likewise I can run a server if need be. Suggestions would be appreciated!

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• How can I join two simple home networks together using an ethernet cable?

  - by Ilia Jerebtsov

  I want to join two different home networks together like so: PC A1 PC A2 PC B1 PC B2 \ / \ / Gateway A <----- ethr. cable -----> Gateway B | | ADSL modem A ADSL modem B Both networks are of the basic residential type with identical configuration, with all PCs running Vista/7. The point is to temporarily join two apartments in a building for gaming and file sharing, and the holy grail would be: PCs on network A can access PCs on network B and vice-versa (file shares and gaming). Each network uses its own internet connection. Data between networks shouldn't take a trip through the internet (broadband upload speeds are severely capped) A network's internet access should continue working if the joining cable is disconnected with minimal configuration changes. How closely can this be achieved?

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• Best way to duplicate databases nightly?

  - by Margaret

  Hey all We just got two new servers, that are running Windows Server 2008. The intent is to make the machines pretty much identical, copying the content of the master to the slave on a nightly basis, so that if anything fails, the second copy can stand in immediately. It doesn't need to be up-to-the-minute mirroring, though I suppose that wouldn't hurt if performance is not affected. The two machines will, amongst other things, each be running an instance of SQL Server 2008. The aim is to duplicate the databases on the master down to the slave on a nightly basis. Unless I'm misunderstanding, the slave databases in mirrored databases require the primary to be present to work correctly; I'm hoping for some solution where we have a second machine that can be up and running with minimal downtime if the first one falls over. Am I misunderstanding mirroring? Is that the best way to do things, or should I use some other mechanism? If so, what?

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• enable PHP on windows Apache server

  - by Don

  Hi, I need to run a PHP app on a windows apache server. I've installed Apache, unzipped the app into the htdocs folder, but when I type this URL into the browser http://localhost:8080/pixelpost/admin/install.php I get the content of the PHP file, rather than the output it should generate. What are the steps for enabling PHP support in Apache on windows? I guess I need to install mod_php, and possibly do some other stuff, but my Apache and PHP knowledge is minimal, so idiot-proof instructions would be much appreciated. Thanks, Don

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• Are there mapping utilities out there that will let me import geo position data (lat/long) and plot the points on a map?

  - by GregH

  I have a data file with a bunch of lat/long positions. Is there any mapping software out there (google maps, etc) that will allow me to import the positions from the file and plot them on a map? I would be this can be done through google maps but I'm not sure how to do it. I just want something that I can use quickly with a minimal amount of programming to do. I don't need to annotate anything. Just view where the points are on the map. I'm just wondering if there is something already available out there to import into google maps.

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• EloTouch touchscreen suspends correctly but does not come out of standby on Ubuntu 10.04

  - by Ton van den Heuvel

  I am using an EloTouch touchscreen on a minimal Ubuntu 10.04 installation. I have a bare Xserver running without any desktop environment, just an xterm. The touchscreen is working great, but there is still one small problem. As soon as the touchscreen goes to standby, it is not coming out of standby when touching the screen. Using a keyboard or mouse does get it out of standby though. I am looking for any hints or directions to a cause of this problem. Is this an x.org configuration problem? A driver problem? Is this a known problem with touchscreens in general? Any pointers are welcome. The driver I am using is an unreleased EloTouch driver (3.5.0). I received it through a reseller who can not give me any technical information unfortunately.

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• How to maintain one file across many production servers (Windows and Linux)

  - by Brien

  My organization wants to centrally manage an Oracle TNSnames file for all of their production servers. When that file changes, they want to be able to push out the changes to all servers that use it with a minimal effort. Approaches that have been considered: Centralized file server (drawback: if the file server or the network connection to the file server goes down, the servers have no access to the critical file) Subversion client on each server (drawback: using a source control tool in production, added complexity) Store an individual copy of the file on each server (drawback: changing the file contents involves making changes on many different servers) Update Can I use DFS to do this?

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• Processor always at max speed

  - by Pratyush Nalam

  I am running Windows 8 Pro on an Apple MacBook Pro 9,1 Mid 2012 15 inch non retina. It has a Core i7-3720 QM CPU @ 2.6 GHz. For the past few days, I have noticed that it is constantly running at max speed which is 2.59 GHz. Before, it used to run at 1.5 - 1.8 GHz on normal usage. And, the weirder thing is that CPU usage is minimal. Screenshot: So, what is the reason for this? And is it harmful?

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• Minimum power requirement for VGA vs. its working

  - by Shiki

  Got a new XFX GTX260^2 video card. The only problem is the "Minimum power" is 500W on the box. I've got a Chieftec 450AA PSU with just a minimal number of attached stuff (1hdd, WD green; 6gb (4module) ram; dvd writer). Bought a cable for the 6pin power input on the card. Got picture, works in every aspect. Still. Should I get a new PSU (like a Corsair or Antec 600W)? Will the card perform slower with this PSU? (Yeah the last part is a particular question but in I'm also asking in generic. I was wondering about this so many times and I hope we'll put and end for this question for once and for all.)

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• Beginners advice on Small business network disk(s)

  - by Rob

  We are having 10 PCs used by various user and presently use one network disk (a LaCie NAS) for all our data. Everything is Windows Vista and our collective IT hardware knowledge is minimal. This worked well generally. However, recently the disk freqently loses connection from the network (2-3 times per week) and the only way back seems to be the "turn it off and back on" trick. This obviously cant be any good for the disk. I understand that there are various more sophisticated ways of storing data and was wondering what people would recommend. One of the worries is obviously disk failure (either in part or as a whole) and the lack of continued availability due to network issues. I would guess that a disk which replicates data wouldnt work as a sole solution due to the network connection, but dont know what hardware (and/or software) would/could work in our case. In terms of size, we are looking at very small amounts, ie. less than 500 GB in total.

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