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  • rTorrent, too low memory usage !?

    - by Claudiu
    I want to know from more experienced rTorrent users how to tweak the .rtorrent.rc so that rTorrent will cache disk reading and writing (same as uTorrent does). I have set the max_memory_usage = 1GB but this amount is not used. I run 6 rTorrent instances on a Quad Core, 8 GB Ram machine and total used memory reported by htop is only ~500MB. I need to use memory buffers cause disk IO activity is very high.

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  • help with xorg.conf: xrandr on one of two widescreen monitors; rhel5, kde, ATI Radeon X1300

    - by user35997
    Can anyone help with me configure my dual-screen monitors for rotation? I have xrandr 1.1. Have tried various approaches, nothing takes. I can't even get the xrandr options to show up in KDE's Display control panel. Thanks1 My lspci output: 03:00.0 VGA compatible controller: ATI Technologies Inc RV516 [Radeon X1300/X1550 Series] My current xorg.conf (works, minus screen rotation): # Xorg configuration created by system-config-display Section "ServerLayout" Identifier "Multihead layout" Screen 0 "aticonfig-Screen[0]" 0 0 InputDevice "Keyboard0" "CoreKeyboard" Option "Xinerama" "off" Option "Clone" "on" EndSection Section "Files" EndSection Section "Module" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection Section "Monitor" ### Comment all HorizSync and VertSync values to use DDC: Identifier "Monitor1" VendorName "Monitor Vendor" ModelName "Dell 2407WFP (Digital)" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 76.0 Option "dpms" EndSection Section "Monitor" Identifier "aticonfig-Monitor[0]" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" EndSection Section "Device" Identifier "Videocard0" Driver "vesa" EndSection Section "Device" Identifier "Videocard1" Driver "vesa" VendorName "Videocard Vendor" BoardName "ATI Technologies Inc RV516 [Radeon X1300/X1550 Series]" BusID "PCI:3:0:0" EndSection Section "Device" Identifier "aticonfig-Device[0]" Driver "fglrx" Option "DesktopSetup" "horizontal" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 16 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection SubSection "Display" Viewport 0 0 Depth 16 EndSubSection EndSection Section "Screen" Identifier "Screen1" Device "Videocard1" Monitor "Monitor1" DefaultDepth 16 SubSection "Display" Viewport 0 0 Depth 16 Modes "1920x1200" "1280x1024" "800x600" EndSubSection EndSection Section "Screen" Identifier "aticonfig-Screen[0]" Device "aticonfig-Device[0]" Monitor "aticonfig-Monitor[0]" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 Modes "1920x1200" "1280x1024" "800x600" EndSubSection EndSection

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  • Limit which processes a user can restart with supervisor?

    - by dvcolgan
    I have used supervisor to manage a Gunicorn process running a Django site, though this question could pertain to anything being managed by supervisor. Previously I was the only person managing and using our server, and supervisor just ran as root and I would use sudo to run supervisorctl restart myapp when needed. Now our server has to support multiple users working on different sites, and each project needs to be able to restart their own gunicorn processes without being able to restart other users' processes. I followed this blog post: http://drumcoder.co.uk/blog/2010/nov/24/running-supervisorctl-non-root/ and was able to allow non-root users to use supervisorctl, but now anyone can restart anyone else's processes. From the looks of it, supervisor doesn't have a way of doing per-user access control. Anyone have any ideas on how to allow users to restart only their own processes without root?

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  • Xubuntu login hangs after Cancel Button click

    - by akester
    I'm running Xubuntu 12.04 (I installed using the alternative installer.) running in Virtaulbox 4.1.20 My issue is with the login screen (lightdm-gtk-greeter). It usually runs just fine, and allows users to log in and out but it will hang if the user presses the cancel button. The interface is still working (ie, shutdown menu is still available, I can switch to a different tty) but the username or password field (depending on when the button is hit) is disabled. Restarting lightdm will reset the screen, but the problem still exists. The issue is only with the cancel button. The login, session, and language buttons/menus as well as the accessibility and shutdown menu appear to work normally. I've modified some of the config files for lighdm-gtk-greeter, specifically /etc/lightdm/lighdm-gtk-greeter.conf to change the background image and /etc/lightdm/lightdm.conf to disable the user list. I did not check to see if the error existed before the changes took place. The changes have been restored the default settings but the problem persists. Here is the output of /var/log/lightdm/lightdm.log when the screen is hung: [+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log [+0.00s] DEBUG: Starting Light Display Manager 1.2.1, UID=0 PID=2072 [+0.00s] DEBUG: Loaded configuration from /etc/lightdm/lightdm.conf [+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager [+0.00s] DEBUG: Registered seat module xlocal [+0.00s] DEBUG: Registered seat module xremote [+0.00s] DEBUG: Adding default seat [+0.00s] DEBUG: Starting seat [+0.00s] DEBUG: Starting new display for greeter [+0.00s] DEBUG: Starting local X display [+0.02s] DEBUG: Using VT 7 [+0.02s] DEBUG: Activating VT 7 [+0.03s] DEBUG: Logging to /var/log/lightdm/x-0.log [+0.04s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0 [+0.04s] DEBUG: Launching X Server [+0.05s] DEBUG: Launching process 2078: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch [+0.05s] DEBUG: Waiting for ready signal from X server :0 [+0.05s] DEBUG: Acquired bus name org.freedesktop.DisplayManager [+0.05s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0 [+0.28s] DEBUG: Got signal 10 from process 2078 [+0.28s] DEBUG: Got signal from X server :0 [+0.28s] DEBUG: Connecting to XServer :0 [+0.29s] DEBUG: Starting greeter [+0.29s] DEBUG: Started session 2082 with service 'lightdm', username 'lightdm' [+0.36s] DEBUG: Session 2082 authentication complete with return value 0: Success [+0.36s] DEBUG: Greeter authorized [+0.36s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log [+0.36s] DEBUG: Session 2082 running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/lightdm-gtk-greeter [+0.58s] DEBUG: Greeter connected version=1.2.1 [+0.58s] DEBUG: Greeter connected, display is ready [+0.58s] DEBUG: New display ready, switching to it [+0.58s] DEBUG: Activating VT 7 [+1.04s] DEBUG: Greeter start authentication for andrew [+1.04s] DEBUG: Started session 2137 with service 'lightdm', username 'andrew' [+1.09s] DEBUG: Session 2137 got 1 message(s) from PAM [+1.09s] DEBUG: Prompt greeter with 1 message(s) [+17.24s] DEBUG: Cancel authentication [+17.24s] DEBUG: Session 2137: Sending SIGTERM

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  • Taking a screencast in Backtrack 4

    - by Leboff
    I'm working on a tutorial using Backtrack 4 Live USB, and I would like to take a screencast of what I'm doing (not just screenshots) So far I have tried these application with limited success: -recordmydesktop -xvidcap -wink -istanbul -vlc -vnc2flv Each time I try the resulting files are generally choppy (at best 1 frame per second) and most don't even end up with a clear view of the screen each time. If anyone has suggestions for the screencast I would greatly appreciate it. Thanks, Bryan

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  • How do I remove Xen kernel and put normal kernel on RHEL 5

    - by yan bellavance
    I have 3 identical machines (hardware wise) that all have RHEL 5.3 installed. 2 of those machines have the Xen kernel and one doesnt. I cannot install nvidia drivers on the ones that have the xen kernel and so I was wondering how I managed to do this and how to replace them with normal kernels. Could this of happened during install time when for example I was queried on certain components to install? (development,virtualization, webserver)

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  • using sed, how to change the text on line seven to read seventh?

    - by Steve
    using sed, how to change the text on line seven to read seventh? Steve Blenheim:238-923-7366:95 Latham Lane, Easton, PA 83755:11/12/56:20300 Betty Boop:245-836-8357:635 Cutesy Lane, Hollywood, CA 91464:6/23/23:14500 Igor Chevsky:385-375-8395:3567 Populus Place, Caldwell, NJ 23875:6/18/68:23400 Norma Corder:397-857-2735:74 Pine Street, Dearborn, MI 23874:3/28/45:245700 Jennifer Cowan:548-834-2348:583 Laurel Ave., Kingsville, TX 83745:10/1/35:58900 Jon DeLoach:408-253-3122:123 Park St., San Jose, CA 04086:7/25/53:85100 Karen Evich:284-758-2857:23 Edgecliff Place, Lincoln, NB 92743:7/25/53:85100 Fred Fardbarkle:674-843-1385:20 Parak Lane, Duluth, MN 23850:4/12/23:780900 Lori Gortz:327-832-5728:3465 Mirlo Street, Peabody, MA 34756:10/2/65:35200 Paco Gutierrez:835-365-1284:454 Easy Street, Decatur, IL 75732:2/28/53:123500 Ephram Hardy:293-259-5395:235 CarltonLane, Joliet, IL 73858:8/12/20:56700

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  • How to solve "Broken Pipe" error when using awk with head

    - by Jon
    I'm getting broken pipe errors from a command that does something like: ls -tr1 /a/path | awk -F '\n' -vpath=/prepend/path/ '{print path$1}' | head -n 50 Essentially I want to list (with absolute path) the oldest X files in a directory. What seems to happen is that the output is correct (I get 50 file paths output) but that when head has output the 50 files it closes stdin causing awk to throw a broken pipe error as it is still outputting more rows.

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  • Windows 8 won't boot after Boot Repair

    - by Rudolph Gottesheim
    I've got a Sony Vaio laptop. Until yesterday I had Windows 7 and Ubuntu 12.04 installed. Today I upgraded to Windows 8, which killed my OS selection screen. So I booted to Ubuntu 12.10 from a USB stick and ran Boot Repair. This recovered the GRUB screen and let me boot into my Ubuntu 12.04 installation, but now I can' boot Windows 8. When I select the option that booted Windows 7 before, it looks like it wants to start Windows 7 (sic) again (black screen, with the text "Windows is loading" or something), but then reboots the machine after a few seconds. I'm sure Boot Repair can fix this, but I know far too little about the whole booting thing to know the right settings for it. Here's my boot repair report thing.

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  • OSSEC agent behind NAT

    - by Eric
    I am working on an OSSEC deployment where I will have multiple agents behind 1 public IP. Below is an example of the setup Private Network OSSEC-Agent1 (192.168.1.10) OSSEC-Agent2 (192.168.50.33) OSSEC-Agent3 (10.10.10.1) Those IPs NAT to 1 public IP (1.1.1.1) Then 1.1.1.1 talks to the public OSSEC server on 2.2.2.2 I've read some OSSEC documentation talking about NAT here, but it doesn't tell me exactly what I need to know. Their example is using an entire /24 subnet and mine will mainly have multiple agents to only 1 public IP. With the setup so far, I brought Agent1 online fine and it is communicating to the OSSEC server. However Agent2 continues to fail trying to connect to 2.2.2.2. Even though when I added the key, I had the correct name for it, so I know it talked to the portal at least once for that information. I'm assuming it's just getting confused with the multiple keys to 1 public IP. I basically want to know if this is possible and/or if I'm just overlooking something simple. Any help would be greatly appreciated.

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  • User and group permissions in access.conf

    - by Maddie
    How do I configure access.conf so that the following rule is applied? : Allow the user dia to connect from 192.152.100. Deny the user sim to connect from 192.152.100. Particularity : both the users dia (uid = 8389753) and sim (uid = 500) belong to the group sim (gid = 500) Yes, the user and group sim have the same name and the same id. With the follwing syntax, - : sim : 192.152.100. the user sim is denied, as well as dia (because dia belongs to the group sim). access.conf considers sim as being both the user and group. How do I specify that I want to deny the user sim, but at the same time allow the user dia ?

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  • Bad I/O scheduler?

    - by user62367
    os: up-to-date Fedora 14. Working as a "normal desktop". It's doing very well, but if i start VirtualBox, and e.g.: install a guest on it, it just "freezez". I mean if there are disk activities on a VirtualBox guest, then the computer becomes unrespondable..even the mouse is laggin for about 50 minutes.. What could be the bottleneck? What could be the problem? If anyone has any tips/howtos to speed it up, please help! It has a normal 2,5" HDD, with 5400 RPM. Does it worth for me if i buy a 2,5" HDD with 7200 RPM? T7200 cpu, 4 GByte RAM, "vm.swappiness = 0". Thank you!

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  • multicast tcpdump and subscriptions

    - by Karoly Horvath
    From the multicast howto: IP_ADD_MEMBERSHIP. Recall that you need to tell the kernel which multicast groups you are interested in. If no process is interested in a group, packets destined to it that arrive to the host are discarded. If you don't do that, you won't see those packets with tcpdump. Is it possible to subscribe to all multicast traffic so I can do a tcpdump for all existing traffic? I would think IGMP doesn't allow this, so probably not.. but maybe you can configure a switch to still send all multicast traffic. Is that possible? Is it possible to do subscription (for a specific IP) with a command line tool? (note: I know how to do this in C.. but would prefer to use an existing tool and not compile a separate program for this)

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  • Unix Permissions issue with users belonging to the same group accessing a folder

    - by TK Kocheran
    I have a folder I'd really like to allow another user on this machine access to. I'm using mt-daapd to serve music to the network, so I'd like to enable the mt-daapd user to access my Music directory, /home/rfkrocktk/Music. The master user is rfkrocktk obviously. I've tried to set all of my permissions properly on the directory, but the mt-daapd user can't acces the files. I created a group called media-users and added both rfkrocktk and mt-daapd to it in order to give mt-daapd permission to simply read all of the files in that directory and subdirectories. If I run id on each of my users, here's what's displayed: $ id rfkrocktk > uid=1000(rfkrocktk) gid=1000(rfkrocktk) groups=1000(rfkrocktk),4(adm),20(dialout),24(cdrom),29(audio),46(plugdev),104(lpadmin),115(admin),120(sambashare),124(vboxusers),1001(jupiter),2002(media-users) $ id mt-daapd > uid=123(mt-daapd) gid=65534(nogroup) groups=65534(nogroup),2002(media-users) It definitely seems that both users are a part of the media-users group, so what could be going wrong? If I run ls -l on the actual Music directory to see its permissions, here's the output: drwxr-Sr-- 201 rfkrocktk media-users 12288 2011-01-13 12:26 Music If I run ls -l on the Music directory to get its children, here's the output: drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-12-20 15:31 2DBoy drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-05-25 12:50 ABBA drwxr-Sr-- 3 rfkrocktk media-users 4096 2009-12-28 15:19 Access Denied drwxr-Sr-- 10 rfkrocktk media-users 4096 2009-12-28 15:19 AC-DC drwxr-Sr-- 3 rfkrocktk media-users 4096 2009-12-28 15:19 Aerosmith drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-06-04 10:45 A Flock of Seagulls drwxr-Sr-- 4 rfkrocktk media-users 4096 2010-05-28 18:13 Alestorm drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-06-22 23:29 Amon Amarth drwxr-Sr-- 5 rfkrocktk media-users 4096 2009-12-28 15:19 Anberlin ... From this, it would seem that I should be able to access the folders from mt-daapd, but I can't. Running sudo -i -u mt-daapd ls -l /home/rfkrocktk/Music displays nothing, indicating to me that for whatever reason, mt-daapd doesn't have access to read the folder. What am I doing wrong?

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  • Sharing disk volumes across OpenVZ guests to reduce Package Management Overhead

    - by andyortlieb
    Is it feasible to create a single "master" OpenVZ guest who would only be used for package management, and use something like mount --bind on several other OpenVZ guests sort of trick them into using the environment installed by the master guest? The point of this would be so that users can maintain their own containers, and yet stay in sync with the master development environment, so they'll always have the latest & greatest requirements without worrying too much about system administration. If they need to install their own packages, could put them in /opt, or /usr/local (or set a path to their home directory)? To rephrase, I would like several (developer's, for example) OpenVZ guests whose /bin, /usr (and so on...) actually refer to the same disk location as that of a master OpenVZ guest who can be started up to install and update common packages for the environment to be shared by all of this group of OpenVZ guests. For what it's worth, we're running Debian 6. Edit: I have tried mounting (bind, and readonly) /bin, /lib, /sbin, /usr in this fashion and it refuses to start the containers stating that files are already mounted or otherwise in use: Starting container ... vzquota : (error) Quota on syscall for id 1102: Device or resource busy vzquota : (error) Possible reasons: vzquota : (error) - Container's root is already mounted vzquota : (error) - there are opened files inside Container's private area vzquota : (error) - your current working directory is inside Container's vzquota : (error) private area vzquota : (error) Currently used file(s): /var/lib/vz/private/1102/sbin /var/lib/vz/private/1102/usr /var/lib/vz/private/1102/lib /var/lib/vz/private/1102/bin vzquota on failed [3] If I unmount these four volumes, and start the guest, and then mount them after the guest has started, the guest never sees them mounted.

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  • What is the meaning of those numbers in the second column after typing "ls -l"?

    - by Nick Dong
    drwxr-xr-x. 2 root root 4096 Jun 29 16:44 db drwxr-xr-x. 2 root root 4096 Jun 29 16:44 djproject -rwxr-xr-x. 1 root root 38 Jun 29 16:44 index.html drwxr-xr-x. 2 root root 4096 Jun 29 16:44 jobs -rwxr-xr-x. 1 root root 252 Jun 29 16:44 manage.py drwxr-xr-x. 3 root root 4096 Jun 29 16:44 templates What is the meaning of those numbers in the second column? Do they have some relation to file and folder permissions? How do I change the numbers?

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  • Webserver: chrooted PHP gives mysql.sock error when attempting to reach mysql

    - by Jon L.
    Hey guys, I've configured an Ubuntu webserver with Nginx + PHP5-FPM. I've created a chrooted environment (using jailkit) that I'm tossing my developers into, from where they can develop their test applications. Chroot jail: /home/jail Nginx and PHP5-FPM run outside the chroot, but are configured to function with websites within the chrooted environment. So far, Nginx and PHP5-FPM are serving up files without issue, except for the following: When attempting to connect to MySQL, we receive this error: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' Now, I believe the issue is due to the non-chrooted php.ini referencing mysqld.sock outside of the chroot environment (it's actually using the MySQL default setting currently). My question is, how can I configure PHP to access MySQL via loopback or similar? (Found that as a suggestion in a google result, but without any instructions) Or if I'm missing some other obvious setting, let me know. If there's an option of creating a hardlink (that would remain available even if mysql is restarted), that would be handy as well.

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  • More than 3 seconds "Initial Connection" time (webpagetest.org)

    - by George Tasioulis
    I'm having a weird issue with a vBulletin forum, on a 2? Xeon E5645 w/ 16GB RAM, cPanel and LiteSpeed webserver; It takes too long to start loading... When I tested it with webpagetest.org I saw that for every request there's a 3 second "Initial connection" delay, which I don't know why is happening. Here's a screenshot: CPU Load is between 0.03 and 0.05, I've got several GB of free RAM, practical no I/O activity, and this delay can occur even with only one visitor on the forum. Where do you suggest I start searching? What could be the reason for this kind of delay? I don't think it's the webserver, or the forum because there's another website on the server (total 2 sites) which is WordPress based, and has exactly the same issue with the 3 second initial connection delay. I believe it's OS related, but need a clue on where to start looking. Thanks in advance :)

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  • elilo commandline boot config that includes spaces

    - by qdot
    I've got an elilo (EFI LILO) config file that includes spaces in the label - like that: image=/EFI/gentoo/boot/kernel-genkernel-ia64-3.1.6-gentoo label="Gentoo IA64 3.1.6" append="real_root=/dev/sda2" initrd=/EFI/gentoo/boot/initramfs-genkernel-ia64-3.1.6-gentoo read-only How can I select this label from ELILO's command line - the usual suspects: Gentoo IA64 3.1.6 "Gentoo IA64 3.1.6" 'Gentoo IA64 3.1.6' Gentoo\ IA64\ 3.1.6 all fail with the Kernel file not found Gentoo/"Gentoo/'Gentoo/Gentoo\" kind of error. Surely there must be a way to use a 'space' without making it a parameter delimeter?

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  • What does the suffix 'w' and 'd' mean with 'TIME+' in top?

    - by ssapkota
    Here's a chunk of the top from my server: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 18878 www-data 20 0 200m 13m 4704 S 0 0.2 0:00.07 apache2 12374 root 20 0 197m 9460 4480 S 0 0.1 21212906w apache2 9136 root 20 0 79100 3488 2716 S 0 0.0 54518724d sshd I know the TIME+ means the total CPU time the task has used since it started. But in the above output, I simply couldn't understand what 21212906w and 54518724d mean? some considerable no of processes are showing the TIME+ with w and d prefixed. What does this mean? Is the server in trouble? Just to let you know - the server uptime is 4days. EDIT: - I can guess these refer week and days. If so why is it so large considering the uptime? - The server has 8 cores.

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  • Wake On Lan for Fedora 12

    - by Toymakerii
    I have a fedora 12 box that I am using as a sandbox for web development and a few other toys. The box gets really hot so I would like it to sleep/hibernate when no one is using it, however most of the people connecting to the box will not be able to access it physically. Is it possible to set up a Wake On Lan that wakes up the machine when it detects an SSH connection? A google search didn't yield much information. (or atleast I wasn't smart enough to register it as useful!)

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  • How to improve the HTML formatting in Evolution mail client

    - by Tom
    I have a question about viewing HTML emails in the Evolution mail client. Basically, I am receiving some emails that look lovely in Thunderbird but not in Evolution because the HTML rendering of Evolution isn't as advanced. Does anyone know how to improve the HTML rendering of Evolution? e.g. a plugin, tip, code patch, etc... The closest I've got is to right-click the email, "Save As...", save as a html file, then open in Firefox. Not exactly streamline! What emails can't it display well? We use the subversion revision control system which is set up to send an email whenever someone commits via svnnotify all nicely coloured via the --handler HTML::ColorDiff -d parameter. When Evolution fails to use the colours, I find it very had to read the raw diff.

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  • Dynamips and Tap Devices, To and From the same machine

    - by Kyle Brandt
    I am setting up a dynamips/dynagen lab and am wondering if there is any way to get traffic to route out one tap devices, go into the lab, and come back to a tap device on the same machine. I have tried host specific routes as well as removing the route created when I give the tun device an ip via ifconfig. With both of these, traffic always preferes the attached devices and won't go through my lab. Any way to make this work without a separate machine or vm?

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