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• Prebuilt ActiveMQ Server Based off ZeroMQ

  - by VxJasonxV

  Are there any distributions of fully built Message Brokers that are initially based off of ZeroMQ? I had thought that downloading/installing ZeroMQ would give me such, not just a handful of procedures for rolling me own. Currently we use ActiveMQ, but it is a miserable pain to configure, so I'd rather slim down the profile, unfortunately I learned that ZeroMQ was not a one step solution to achieving that goal. Alternatives are ok, but I'd prefer something less overly verbose in configuration than ActiveMQ's ludicrous amounts of Java configuration. Broker config + Java Logger Config + many other intricacies that I don't wish to deal with. (Read: Preferably not Java based in the first place.) I'm looking for reliable, basic functionality described by JMS brokers. Topics, Queues, Message Persistence, etc.

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• Xenserver boot error

  - by Adrian

  I'm trying to get Xenserver 5.5 running on a spare computer here, hardware specs: Intel Q6600, 4GB Ram, and Gigabyte GA-P35-DS3R motherboard Xenserver itself installs fine onto a 150GB sata hdd, however it fails to boot whatsoever, giving this garbled mess: http://img697.imageshack.us/img697/9918/biosi.jpg it's not frozen because if I press enter it just prints a different garble and it also says "could not find kernel image". The strangest thing is if I put that hdd in my desktop and assign it to a VMWare desktop vm (under the ESX profile no less) it boots perfectly... leading me to believe there are no problems with the install or the hdd itself. From what I can tell the error seems to be occuring completely seperately to Xenserver, in the bootloader extlinux?. If there was a motherboard compatibility issue I would think it would also have manifested during installation, and the fact the problem seems to be with the booting into Xen makes me doubt this. Any ideas guys? (I'm using Xen because it can do PCI passthrough without VT-d.)

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• What is the difference between Windows RT and Windows Phone 8?

  - by Rakib Ansary

  From what I have read it seems there are more or less three versions(?) of Windows 8: Windows 8, Windows RT, and Windows Phone 8. While the difference between Windows 8 and Windows RT is clear, I don't understand the difference between Windows RT and Windows Phone 8. The Android parallel, Jelly Bean that runs on Tablets and on Phones doesn't have any differences. Are there any differences between Windows RT and Windows Phone 8 except for the fact that one is for Tablets (Windows RT) and the other is for Phones (Windows Phone 8)?

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• Disabling horizontal scrolling using mouse wheel

  - by Carlos

  Hello, I am using Windows 7 x64 on an iMac (via BootCamp) with the button-less Magic Mouse that comes with the iMac. I would like to disable the horizontal scrolling that happens when you move slightly the finger horizontally while doing a vertical scrolling. In the Control Panel, Mouse section, Wheel tab, Horizontal Scrolling section, the minimum value that you can enter is 1, not 0. Is there a way (in the Registry) to disable horizontal scrolling using the mouse wheel? Or to set that value to 0 to see if it does the trick? Notice that this is a Windows specific question, not Mac OSX or Apple or Magic Mouse question, it can apply to any mouse in Windows whose wheel supports horizontal scrolling apart from vertical scrolling.

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• Inexpensive and Open replacement for Cisco Tunnel-based EasyVPN with Cisco VPN 3000 Series

  - by Shoaibi

  I have a scenario when i have to establish peer-to-peer preshared key based VPN to a vendor. This vendor uses Cisco EasyVPN with Cisco VPN 3000 as access concentrator. I check the compatibility of the type of VPN from http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6635/ps7180/prod_brochure0900aecd80582078.pdf and it appears that it would only work on cisco hardware. I am looking for a less inexpensive and possibly and open replacement to this to save my cost and also recommend to them. I have tried OpenVPN and thinking about vyatta.

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• Logging on as root without winbind timeouts

  - by Josh Kelley

  How can I set up my Linux box so that, if the Active Directory domain controller is down, I can still log in as root, without any timeouts or delays? Following the example of most of the documentation out there, I've listed pam_winbind.so before pam_unix.so in my /etc/pam.d configurations. I believe that this is the cause of the problem. I remember seeing alternate /etc/pam.d setups that change the order and maybe add either pam_localuser or pam_succeed_if (to see if the uid is less than 500), but I can't find any specifics now (and I'm not enough of an expert in PAM to quickly and easily come up with a robust configuration on my own). What is the recommended setup for PAM with Winbind to avoid timeouts and delays if Active Directory is unavailable?

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• Can I have both Windows dynamic disk partition and some other non-Windows partition on the same disk?

  - by haimg

  When a basic Windows disk is converted to dynamic, Windows creates a partition that span the whole disk with the type of "Windows LVM" and manages its dynamic partitions within this space. So even if there is still free space on this disk, it is not visible to any other OS besides Windows. This happens with MBR and GPT disks both. I would like to share a Windows dynamic disk with some other OS. I have to have dynamic disks because I use Windows SoftRaid (mirrors). So, my questions are: Is there any way to "force" Windows to take up less then the whole disk when it converts a basic disk to dynamic? Will Windows tolerate having some other non-Windows partition on its dynamic disk?

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• How do you enable syslogd to accept incoming connections on Snow Leopard from remote loggers?

  - by Emmel

  How do I get syslogd to accept incoming connections from remote hosts on Snow Leopard? I'd like to centralize logging such that various devices and systems send logs to Snow Leopard's syslogd, which normally hangs out on UDP 514. However, I'm unable to get them to successfully be accepted by good ole syslogd. I tcpdumped on the Snow Leopard box to verify that packets are being spouted to port 514 -- they are. I checked that syslogd is listening on 514 -- it's not. Googling around told me that, on older versions of OSX (don't you love the way things change so rapidly on OSX), one just had to add a flag to the syslogd daemon to allow remote; one did this in com.apple.syslogd.plist. However the syslogd daemon has no flags (at least in its man page) that suggests any remote anything. What's the solution to this? Secondary, less import but relevant question: What's 'newsyslog'? I see a plist file but it's not running (apparently). Thanks

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• Can't get Intel drivers for ASUS P6T Deluxe

  - by Alex K

  Hi everybody, A few days back my Win7 Ultimate started bugging me to install the RAID drivers for my ASUS P6T Delux. Fine, I'm all for having up to date drivers even for stuff I don't use. The problem is that the drivers I download from both ASUS support site here and the ones I get directly from Intel (can't post the second link, since I have less than 10 rep, but it's the first hit for "Intel(R) Matrix Storage Manager Driver" on google) say that my system does not meet the minimum system requirements. Impossible, I would think, what with it having the X58 chipset and the Windows version is supported one. Has anyone encountered something like this before? Any clues on how to solve this would be much appreciated. Thanks!

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• Installing Fedora 11 fIlesystem from ISO in to a VM image

  - by okhalid

  Hi, I need to install Fedora 11 in my monitor-less linux box which is running some where in a data center. I will use Fedora 11 as a virtual machine. What I already know/have: 1) How to create LVM partitions and create ext3 filesystem 2) Mount the LVM partition and ISO image 3) Run the partition with Xen as a virtual machine What I need: 1) I need to install Fedora ll file system into an lvm partition (let's say /dev/fedora11) from an ISO image so that I have all the directories /root, /bin, /sys etc etc under /dev/fedora11 Any help would be much appreciated! NOTE: I don't have a monitor for this server, so I need to do it via SSH

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• No "Terminal Services" branch in "Group Policy Object Editor"

  - by ayavilevich

  Hi, We have several identical several servers in a hosting company. They run Windows 2003 R2 Std SP2 64bit. The servers are not in a domain. We have recently received a new server with the same configuration and hardware. However, the new server is different in some way. When we run "gpedit.msc /s" there are much less options in the tree than the other servers. Specifically we are missing the configuration of "Terminal Services". Many other items are missing under "Administrative templates" and "Windows components". Screenshot of correct server: (can't post link due to SF policy) Screenshot of new server: http://img686.imageshack.us/img686/572/gpowindowscomponentstp5.png What should we try? Thanks, Arik.

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• Is there way to use Windows Easy Transfer on Windows Server 2008

  - by CJM

  At work, I'd been experimenting with using Windows Server 2008 as a desktop machine - I'm a s/w developer so some of the server software was particularly appropriate, but back in the day there was a suggestion that Server 2008 would be faster than Vista (mainly because of less bloat). I'm now wanting to move across to a new Windows 7 workstation; not only does Server 2008 not have Windows Easy Transfer, but I can't attack the problem from the Windows 7 end either - when I try to run the migration wizard it claims that the software 'isnt compatible with this version of Windows'. I'd bet that it would work fine, if only it wasn't for the arbitrary version check... Is there any way to coax this software into working? If not, any good alternatives to Windows Easy Transfer - I don't fancy having to manually copy application settings etc across myself...

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• Fail rate of EBS snapshots and AMIs?

  - by user784637

  According to Amazon the fail rate of EBS volumes is: As an example, volumes that operate with 20 GB or less of modified data since their most recent Amazon EBS snapshot can expect an annual failure rate (AFR) of between 0.1% – 0.5%, where failure refers to a complete loss of the volume http://aws.amazon.com/ebs/ However, I was curious to know the fail rate of EBS snapshots and private AMIs that a system admin would take. Since the EBS snapshots and AMIs are stored in Amazon s3, is it safe to assume that the likelihood you cannot rollback to a previous snapshot or AMI the same likelihood that a file gets lost in s3? Amazon S3’s standard storage is: ... Designed to provide 99.999999999% durability and 99.99% availability of objects over a given year. http://aws.amazon.com/s3/

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• How does one calculate voltages for overclocking?

  - by TardisGuy

  So, all I know is voltage and clock have something to do with each other. Unstable if too low voltage Too high voltage, and too much heat. or higher voltage + lower clock may heat less than that voltage at higher clock. The reason why im asking is because if I can learn how the power vs speed works, Then i might be able to project some kind of thermal curve to find out where my perfect overclock might be (without 50 burn-ins) But, as is apparent im sure. I have no idea what im talking about. If anyone can help me learn more about this; throw me a page, a macro, whathaveyou I will bow before your awesomeness and... Mail you a phantom hand written thank you letter. Some clarification Rev 1 What im trying to learn: is how much power a cpu is using with measurements (Core Voltage) vs (Clock speed) - It would answer the question: Would a 1.4v core @ 4.0Ghz use as much power as a 1.4v core @ 3.0Ghz?

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• Where can I find a useful Unicode fallback font for Mac OS X?

  - by Stephen Jennings

  On every browser I've tried (Firefox, Safari, Chrome, and Omniweb), when I go to a web page containing somewhat less-common characters, I can't see the glyphs. For example, on the Wikipedia page for the Bengali Language, the very first line contains a string of squares; on Windows, I can see the Bengali writing. On Windows, as long as I have the Arial Unicode MS font installed, these characters fall back to that font and display properly. Mac OS X doesn't seem to ship with a font containing these Unicode characters (it has Arial Unicode MS, but it must be a subset of the Windows version because Bengali doesn't display in that font). I checked on my Snow Leopard DVD and I installed "Additional Fonts" from the Optional Installs package, but I'm still missing many languages. Is there any good, free font that contains a large collection of languages? I know creating fonts is difficult and time-consuming, but it seems like including at least one font like this with operating systems should be standard by now.

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• rvmsudo foreman export upstart without asking for password

  - by Millisami

  My capistrano deploy.rb has a foreman export command for a rails app on Ubuntu 10.04 So, while deploying, I want to export the foreman to upstart script. But doing that, the command rvmsudo foreman export ... asks for root password and I cannot do anything. Googled a lot and tried with various tweaks but nothing worked. * executing `foreman:export' * executing "cd /home/deploy/zappy/releases/20111019175422 && rvmsudo foreman export upstart /etc/init -a zappy -u deploy -f ./Procfile.production -c worker=1 redis=1 -l /home/deploy/zappy/releases/20111019175422/log/foreman" servers: ["173.255.205.237"] [173.255.205.237] executing command ** [out :: 173.255.205.237] [sudo] password for deploy: What could be the solution to do it password-less way?

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• Sensei mouse sensitivity

  - by Marcelo

  I've recently acquired a Steelseries Sensei. Despite being a great mouse, I'm having some trouble finding settings that I can get used to... The mouse engine allows me to set a CPI from 0 to 5700. It also allows me to set it even higher, calling it "DCPI" (Double CPI), from 5701 to 11400. On Window's Control Panel, there's a "Pointer Speed" slider and a "Enhance Pointer Precision" checkbox (wording may be different as I use a non-english version). The majority of games allow me to set an in-game "Mouse Sensitivity". Some games let me use a "Raw mouse input". I'm already familiar with the basics of CPI/DPI - "higher CPI means less hand movement", but what are the differences between all those options? Is there a "better" or "worst" setting?

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• OVF Tools error

  - by ToreTrygg

  Hello all, I am trying to use OVF tools 1.0 to create an .ovf appliance split to 4gbs. When I run the following command: ovftool --chunkSize=4gb vi://:@/?ds= e:\test\test.ovf everything starts off fine. It will got for about 15-16% then I get this message: "Error: unable to get NFC ticket for target disk". I have looked online, but cannot find anything that matches this problem. I am using Windows 2k3 as the ovf creation server, and I'm in a ESX 3.5 environment. The ovf must be split into 4gb chunks (or less) so they can be put onto DVDs. Also, when it is done it deletes the files it started to create. Any help would be greatly appreciated.

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• Migrated SQL Server database suddenly in "Restoring" state

  - by Pete Montgomery

  Edit: This is still a live prob, less than an hour after trying RESTORE ... WITH RECOVERY. I backed up a SQL Server 2005 database and restored it to a new SQL 2008 instance. The restore was quick and successful. Everything was fine for an hour or so. Suddenly, the database is now stuck in "(Restoring...)" state in Management Studio and has a green arrow icon, and my application login is failing! Any advice? :-) Edit: This is a live application. If I delete and try again, the hour or so's data will be lost.

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• Different color prompts for different machines when using terminal/ssh?

  - by bcrawl

  I have 5 machines I constantly ssh into to do work. Its getting increasingly frustrating when I am issuing wrong commands on wrong boxes. Luckily I havent done anything bad yet. I wanted to know if there is any hack which I can hardcode which will display my prompt in different colors based on the machine I am ssh into? Such as blue for desktop1, purple for laptop, red for server etc? Is this possible? Currently I am using this command export PS1="\e[0;31m[\u@\h \W]\$ \e[m " taken from here http://www.cyberciti.biz/faq/bash-shell-change-the-color-of-my-shell-prompt-under-linux-or-unix/ but it obviously doesnt work across ssh. Also, if you have any other cool bash tips for helping me ease my sight will be wonderful. I got this tip which colors the man pages. http://linuxtidbits.wordpress.com/2009/03/23/less-colors-for-man-pages/

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• Home ZFS based NAS...What processor/chipset to use?

  - by MrBlargityBlarg

  So, I'm building a home/personal NAS. My plan is to expose both SMB fileshares for sharing files/media between hosts, but also to carve an iSCSI target LUN out of it for use by VMWare as a datastore. I want to use ZFS (software RAID) so that means I'll either be using FreeNAS, Solaris Express, or OpenIndiana. My question is basically: How much horsepower do I need? Obviously I/O is going to be my bottleneck but I want to be sure that I am not limiting my I/O because of a slow processor or chipset. So far the hardware plan is to use an Intel i3 and motherboard with one of the H87, Q87, or Z87 chipsets, a SAS controller (JBOD, no RAID) and if budget allows, I'm also hoping to get an SSD for the ZFS L2ARC and ZIL. Does anyone think I could get away with an Intel Atom or cheaper/less-capable processor/chipset than the i3 and [HQZ]87 listed above?

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• Pure-FTPd linux upload problems - 500 Unknown command

  - by user1801273

  I'm running Centos with Kloxo CP and PureFTPd on VPS based on HyperVM. The problem - during the day, there are periods when FTP wors fine for hours, but sometimes it dies with "500 Unknown command" code. for files larger than 2Kb. This is really weird - with files less than 2472-2484 bytes everything would work fine, but with bigger files ftp would start writing file, would drop on 2Kb and would return "500 Unknown command" . This happens on Passive AND/OR Active connections for any filetypes. Logs are showing like the file was uploaded successfully , but the speed nearby the action would be 0.3 -0.5 Kb , when normal operation would report 70-150Kb/s speeds. I do have some Iptables firewalls on both HyperVM host,and VPS , however these are static, and most of the time it works just fine. Any suggestions on where to look for a solution would be appreciated :)

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• Keeping file for personal use with GPG

  - by trixcit

  I have a small text file with personal (sensitve) information. I'm currently encrypting/decrypting it with the Makefile, as described on http://www.madboa.com/geek/gpg-quickstart/ ; relevant section is edit: @umask 0077;\ $(GPG) --output $(FILEPLAIN) --decrypt $(FILECRYPT) @emacs $(FILEPLAIN) @umask 0077;\ $(GPG) --encrypt --recipient $(GPGID) $(FILEPLAIN) @$(RM) $(FILEPLAIN) view: @umask 0077; $(GPG) --decrypt $(FILECRYPT) | less this works fine for viewing, but not for editting: I first have to enter my password, then edit the file, but to encrypt it afterwards I again have to enter my password twice (and it's a long one). Is there a better way to do this?

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• In MySQL 5.1 InnoDB, does the maximum length of a VARCHAR affect secondary index size?

  - by e_tothe_ipi

  Assuming the data is the same either way, does the maximum length of the VARCHAR affect the space usage of a secondary index? Does InnoDB use fixed length records for indexes? Assume that we're talking about MySQL 5.1, with the InnoDB COMPRESSED table format and that the field in question is defined as a VARCHAR with some length less than or equal to 255 (so that it uses only one byte for the offset). Here is the use case: I have a server with a very large table (several gigabytes). One of the fields is currently VARCHAR(7). We need it a little longer and we are thinking of making it VARCHAR(255), but we are worried that it bloat the index.

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• Best approach to utilize RamDisk for Chrome?

  - by laggingreflex

  I use a lot of tabs and after a while less recently opened tabs take some time to become responsive, which I guess is because they're being un-cached to HDD as they're not required. So after creating a Ram-Disk I have two options, use --disk-cache-dir="G:/" switch to do what it does. Or what I'm currently doing: using a directory junction for "[...]\AppData\Local\Google\Chrome\User Data\Default" to move that entire folder over to Ram-Disk. I thought this would be better than just disk-cache but what do I know. Is it? As one can guess it'll be a pain saving/loading the Ram-Disk image each time I start chrome but if it really is better than the former approach I'll write a script or something.

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