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• Adding QR Codes to Exclaimer

  - by Matt

  We are running a piece of software called Exclaimer which sets a standard template for email signatures and grabs some details from Active directory, like Contact numbers and title. I need to add a QR Code to the signature but it will need to be different for 50 + people, so I cannot use the standard template. I could create a template for everyone individually, but I would like to know if there is a more efficient way of doing this?

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• What happened to my "Predefined rules" in Windows Firewall? How can I get them back?

  - by Cheeso

  Windows Firewall Advanced Settings in Windows 7 , has predefined rule sets. When I click the "Add Rule..." button in my Windows 7 Ultimate install, it looks like this: But, on a machine I have that runs Windows 7 Home Premium, when I click "Add Rule...", the "predefined rules" option is greyed out. Like this: Is this expected? Does Win7 Home Premium NOT have predefined rules? How can I get the rules back?

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• ZFS/Btrfs/LVM2-like storage with advanced features on Linux?

  - by Easter Sunshine

  I have 3 identical internal 7200 RPM SATA hard disk drives on a Linux machine. I'm looking for a storage set-up that will give me all of this: Different data sets (filesystems or subtrees) can have different RAID levels so I can choose performance, space overhead, and risk trade-offs differently for different data sets while having a few number of physical disks (very important data can be 3xRAID1, important data can be 3xRAID5, unimportant reproducible data can be 3xRAID0). If each data set has an explicit size or size limit, then the ability to grow and shrink the size limit (offline if need be) Avoid out-of-kernel modules R/W or read-only COW snapshots. If it's a block-level snapshots, the filesystem should be synced and quiesced during a snapshot. Ability to add physical disks and then grow/redistribute RAID1, RAID5, and RAID0 volumes to take advantage of the new spindle and make sure no spindle is hotter than the rest (e.g., in NetApp, growing a RAID-DP raid group by a few disks will not balance the I/O across them without an explicit redistribution) Not required but nice-to-haves: Transparent compression, per-file or subtree. Even better if, like NetApps, analyzes the data first for compressibility and only compresses compressible data Deduplication that doesn't have huge performance penalties or require obscene amounts of memory (NetApp does scheduled deduplication on weekends, which is good) Resistance to silent data corruption like ZFS (this is not required because I have never seen ZFS report any data corruption on these specific disks) Storage tiering, either automatic (based on caching rules) or user-defined rules (yes, I have all-identical disks now but this will let me add a read/write SSD cache in the future). If it's user-defined rules, these rules should have the ability to promote to SSD on a file level and not a block level. Space-efficient packing of small files I tried ZFS on Linux but the limitations were: Upgrading is additional work because the package is in an external repository and is tied to specific kernel versions; it is not integrated with the package manager Write IOPS does not scale with number of devices in a raidz vdev. Cannot add disks to raidz vdevs Cannot have select data on RAID0 to reduce overhead and improve performance without additional physical disks or giving ZFS a single partition of the disks ext4 on LVM2 looks like an option except I can't tell whether I can shrink, extend, and redistribute onto new spindles RAID-type logical volumes (of course, I can experiment with LVM on a bunch of files). As far as I can tell, it doesn't have any of the nice-to-haves so I was wondering if there is something better out there. I did look at LVM dangers and caveats but then again, no system is perfect.

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• Best way to override 1024 process ulimit

  - by CamelBlues

  On CentOS distros, there is an /etc/security/limits.d/90-noproc.conf that sets a process limit for all users: # Default limit for number of user's processes to prevent # accidental fork bombs. # See rhbz #432903 for reasoning. * soft nproc 1024 I'd like to keep this limit in there, but allow one user to have more than 1024 processes. Because of how the server is puppetized, I'm unable to use the built-in bash ulimit command.

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• Excel chart on one column of date/times

  - by Segfault

  Hello, I have a list of date/timestamps, and I would like to plot these to a chart in Excel. What I'm looking for is a chart that shows "events per hour" or something similar. Can this be done easily if I just have one column of data (the list of timestamps)? I'm using excel 2007 and looking at two data sets. One is 56k events and the other 750, both over the span of a few days.

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• Using wireless interface in guest OS with bridged network in VMware fusion 3

  - by Chetan

  I'm running Ubuntu in Snow Leopard with VMware fusion 3, and I want to be able to access the wireless network on eth1 within Ubuntu so I can run tools like aircrack-ng. However, the bridged network that VMware sets up connects my Airport interface in Mac to the wired interface eth0 in Ubuntu. How do I set it up so that the Airport interface is connected to the wireless interface eth1 in Ubuntu?

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• Good Audio Splitter

  - by Jeremy White

  I need to get audio from my computer's headphone jack and push the output to 2 sets of speakers. I have tried using a cheap splitter from Fry's, but one set of speakers ends up acting as a microphone (!?) for the other set of speakers. What's the best way to split headphone output and get best quality with no interference on each set of speakers? I would, of course, also be interested in why the cheap splitter causes one set of speakers to start acting as a microphone.

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• How do I notify Oracle that an IIS Worker Process is about to recycle?

  - by Brien

  I have an ASP.NET web application with an Oracle back end. The worker process recycling in IIS is set for 40 minutes, and when that occurs, the Oracle server sets a mutex lock while it cleans up all of its open connections. During this cleanup (up to a few minutes in duration), all DB requests get a timeout. Is there a way for IIS to notify Oracle that a worker process recycle is about to occur, so Oracle can be smarter about how it cleans up its resources without locking the entire database?

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• Making Microsoft Word and Thunderbird spell check hotkeys the same?

  - by Jared

  I use Microsoft Word a lot and I also use Thunderbird for my email. I can't keep track of two different sets of hot keys for spell check, is there a way to force Word and Thunderbird to use the same set? I don't care which set it is as lone as it's the same for both programs.

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• Howto force umask 002 for all software?

  - by grm

  I have added umask 002 to /etc/profile, but software like git and apache still sets files to 755 instead of 775. Is there a way to force umask 002 for all programs on a machine?

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• openvpn does not recover from disabling redirect-gateway

  - by Marki

  When I enable the redirect-gateway option on the server, restart openvpn, and restart the client software, the new default gateway is set on the client. When I then disable the redirect-gateway option in the server config, restart openvpn on the server, then on the client, the client no longer sets the old gateway, effectively breaking access to the outside world. Why could this be?

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• dreamweaver disable "language for non unicode programs" detection

  - by YuriKolovsky

  Dreamweaver CS4 auto-detects the language for non unicode programs in windows, in my case it is russian, and conviniently sets the default encoding to be western european instead of the much preferred utf-8, it also changes several bits of text in DW into russian. how do i disable this detection and maintain Dreamweaver in full english? (without having to change the language for non-unicode programs in windows)

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• How to set environment variables for Xfce windowing environment

  - by GreenMatt

  We're using Ubuntu 12.04.1 with Xfce 4.8. We have a script which sets environment variables needed by our software. In the past, I figured out how to run this script in the Xfce start up so that these environment variables are set up and available to gui based programs launched via icons. Recently an OS upgrade wiped out this setting and I can't remember or find how to do this. I've tried sourcing the script from ~/.profile, ~/.xinitrc, and ~/.config/xfce4/xinitrc, but no luck.

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• Motherboard jumper setting: BIOS flash write protection.

  - by Wesley

  I have an ECS P4M800PRO-M478 motherboard and I'm just setting up the jumpers right now, of which there are only two sets. One is the CLR_CMOS jumper, which is set to Normal, of course. However, there is another set called BIOS_WP which controls whether BIOS flash writing is protected or unprotected. Which setting should I have it set at and would this affect any BIOS flashes in the future?

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• How to have your DNS servers forward queries for internet names

  - by Xavier Hutchinson

  I have 2 Domain Controllers / DNS servers on Windows 2012, their IPs are 10.0.1.10 and 10.0.1.11 Another server acts as the DHCP server for clients, and sets their primary and secondary DNS to the IP addresses of the previously mentioned domain controllers / DNS servers. However I cannot resolve internet domain names, presumably as they are not hosted on the DNS servers. So my question is what do I have to do on my setup to resolve external domains? Thank you! Xavier.

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• Can admin edit a user’s “Manage Account Access” (ical)

  - by Louis W

  As a server administrator, can I edit a user's "Manage Account Access" settings. This is where a user sets who can see their calendar. Whenever we add a new user, we have to go to every person's computer and add the new user's account to this. It would be great if I could do this server side.

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• Icons for paint-like program?

  - by Mark

  I'm looking for some simple shape icons, namely for drawing circles, rectangles, polygons and lines. 16x16. Anyone know where I can find them? I've found tons of icon sets, but these are always left out. My GIMP skills suck :(

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• Set default input/output sound

  - by Nathan Koop

  I have a mac that is hooked into a sound board, I have external sound card that interfaces between the computer and the soundboard, this works great. However, whenever the computer restarts it sets the input & output to the 'internal microphone' and the 'built in output'. I'd like to default to the other soundcard. How can I do this? I'm running OS 10.6.3

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• What web browsers support non-latin hostnames 'out of the box'?

  - by rutherford

  With ICANN approving the first full Internationalised Domain Names for non-latin scripts such as Arabic, Cyrillic, Chinese, etc do all browsers support these character sets out of the box?

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• How to have desktop icons constantly highlighted?

  - by Jim Seed

  In Windows 7 when I set the desktop color, it actually sets the color of text in desktop icons. So if I have a black wallpaper, I need to set it to white so icon text will be visible. If I want to have a multi-colored wallpaper then this causes a problem, as icon text won't be readable over areas where color is the same as the set desktop color. Is there a way to have icons constantly highlighted to avoid this?

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• What is the netmask equivalent on the verision of route for the Mac

  - by Wes Reing

  In order to create some special routes for debugging I used the following command on my linux server: sudo route add -net 10.78.0.0 netmask 255.255.0.0 gw 10.101.1.1 which works, and sets up the routes I need. But when I run the same command on my Mac I get: route: bad address: netmask I'm guessing that the version of route that is included in OS X requires a different format but I'm at a loss to figure it out.

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• ssh tunnel via multiple hops

  - by Mala

  Tunneling data over ssh is pretty straight-forward: ssh -D9999 [email protected] sets up port 9999 on your localhost as a tunnel to foreignhost.com, but I have more specific need: I am working locally on localhost host1 is accessible to localhost host2 only accepts connections from host1 I need to create a tunnel from localhost to host2 Effectively I want to create a "multi-hop" ssh tunnel. How can I do this? Ideally, I'd like to do this without needing to be superuser on any of the machines.

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• Disable "Turn off hard disk after" in windows 7

  - by Andreas Bonini

  How can I disable this feature? In the power options apparently I can only choose the minutes and I don't see a "Off" option. If I set it to 0 minutes, it sets itself to 1. For now I set it to 20000000 minutes, but a real solution would be nice.

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• How can I return a 503 status in apache without invoking external scripts

  - by dan mackinlay

  I need to return a 503 status code from one of my sites while it's down for maintenance, in the time-honoured SE_firendly fashion. I can't seem to work out how to do this without invoking external scripts, which I'd rather avoid. Is there an apache directive which will allow me to return an arbitrary HTTP status code without resorting to hacks like invoking a php script which sets the status header?

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• How much does HDD cache matter with Linux softraid?

  - by Jawa

  I'm in a process of renewing/expanding my disk sets, but not quite sure what kind of disks to get, cache-wise. What difference does disk cache amount of 16/32/64MB do, in capacities of, say, 1/1.5/2TB SATA disks? The disks will be used in a webapp server and in a media workstation, with Linux's softraid in raid-1/raid-5 configurations. Note, that as both purposes are purely for a hobby, the pricetag for a dozen of disks is a big issue.

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