users February 2011

users@lists.fedoraproject.org

265 participants
274 discussions

Lost desktop icons (F13)
by John Aldrich 06 Feb '11

06 Feb '11

I recently moved my computer to another room and then brought it back. In the process, I lost my desktop icons. I'm running KDE/Openbox on F13. I've been playing with linux for years, so I'm not a N00B, but I can't figure out how to bring back my desktop icons. Thanks!

4 7

Links in /boot
by Nikolaus Rath 06 Feb '11

06 Feb '11

Hello, Is there a way to get initrd.img and vmlinuz symlinks in /boot or / that are automatically updated to point to the newest installed kernel? Thanks, -Nikolaus -- »Time flies like an arrow, fruit flies like a Banana.« PGP fingerprint: 5B93 61F8 4EA2 E279 ABF6 02CF A9AD B7F8 AE4E 425C

4 4

Authenticating virtual web host with LDAP
by Joe Tseng 06 Feb '11

06 Feb '11

I suspect it's something simple but since I'm still somewhat new at this I can't figure it out myself... I was using this to guide me to set up an virtual web host to authenticate against OpenLDAP: http://wiki.amahi.org/index.php/LDAP#Control_a_web-application_access_using… (FYI I had already added a user to use SSH as an authorizedService using the previous section: http://wiki.amahi.org/index.php/LDAP#Allow_a_user_SSH_access) I created the LDIF file: ================================================== dn: uid=jtseng,ou=People,dc=at,dc=home changetype: modify add: authorizedService authorizedService: sshd ================================================== And when I tried to add the entry I got the following: ================================================== # ldapadd -h localhost -D "cn=root,$SUFFIX" -w mypassword -x -f give_webapp_access.ldif modifying entry "uid=jtseng,ou=People,dc=at,dc=home" ldap_modify: Object class violation (65) additional info: attribute 'authorizedService' not allowed ================================================== Thanks for the help, - Joe If you type "Google" into Google, you can break the Internet. -- Jen Barber

1 1

F14 New Installation: Unknown Monitor
by Burkhard Plache 06 Feb '11

06 Feb '11

Hello Fellow Users, after installing F14, the monitor resolution defaults to 960x600, whereas my BenQ FP 757 has 1280 x 1024. There must be some interface (or driver?) problem, since Preferences->Monitor does not allow me to change to the desired resolution. I did not find any hints on how to proceed in the docs.fedoraproject.org F14 installation guide. Any help to a linux learning user would be appreciated. Burkhard

6 19

OpenSSH could be faster...then why don't they path it??
by kellyremo 06 Feb '11

06 Feb '11

https://www.psc.edu/networking/projects/hpn-ssh/hpn-v-ssh-tput.jpg "SCP and the underlying SSH2 protocol implementation in OpenSSH is network performance limited by statically defined internal flow control buffers. These buffers often end up acting as a bottleneck for network throughput of SCP, especially on long and high bandwith network links. Modifying the ssh code to allow the buffers to be defined at run time eliminates this bottleneck. We have created a patch that will remove the bottlenecks in OpenSSH and is fully interoperable with other servers and clients. In addition HPN clients will be able to download faster from non HPN servers, and HPN servers will be able to receive uploads faster from non HPN clients. However, the host receiving the data must have a properly tuned TCP/IP stack." My question is: So Why Does the original OpenSSH has "limited statically defined internal flow control buffers"?? It could be way faster, even 10x!! With the HPN-SCP path it could be the descendant of FTP! Why aren't there any ""OpenSCP packages""? ('normal SCP+HPN-SCP path+no local user needed for SCP'ing+chroot by default') Any opinions? Thank you!

2 1

Advanced format drives with block errors
by Terry Barnaby 06 Feb '11

06 Feb '11

Hi, Just a bit of info. I have some Western Digital Caviar Green (Adv. Format), WD20EARS drives. These have the "new" 4096 byte physical sector. One of these drives had a faulty block which the drive had not been able to automatically relocate. I tried to force a relocation by overwriting the block with dd: dd if=/dev/zero of=/dev/sdb count=8 seek=694341800 This failed with a write error and a kernel message: sd 3:0:0:0: [sdb] Add. Sense: Unrecovered read error - auto reallocate failed Eventually I tried: dd if=/dev/zero of=/dev/sdb bs=4096 count=1 seek=86792725 This worked. It makes sense, I guess, as in the first dd it may have tried to do a single 512 byte block write using a read/modify/write cycle which would fail as the drive could not read the 4096 byte block in to modify the 512 bytes contained within. I wonder what would happen if a program creates a file that ends up spanning a duff block on one of these drives ? With a 512byte sector drive, the drive would automatically relocate the sector and no one would notice. What would happen with a 4096 byte sector drive ? Will the kernel output 4096byte blocks or multiple 512byte blocks during the write ? If the latter, and I guess it depends on the program, then the file write will fail and manual block repair would be needed. This would not be good ... Perhaps one thing to watch out when using these 4096 byte sector drives.

2 2

Upgrade FC11->14
by Bill Davidsen 06 Feb '11

06 Feb '11

I have a laptop running fc11, with the non-boot partition encrypted LUKS. Based on one bad experience with another system, and one fail with a VM, just booting the DVD and asking it to upgrade is not the way to a working system. While I can certainly backup /home and reinstall, there are a fair number of tweaks and I'd rather not. Any thoughts? -- Bill Davidsen <davidsen(a)tmr.com> "We have more to fear from the bungling of the incompetent than from the machinations of the wicked." - from Slashdot

5 6

Security - Run apps with other users
by kellyremo 06 Feb '11

06 Feb '11

OS: Fedora 14 i386 It's used as a ""normal desktop laptop"". "USER A" - it's the mainly used user, i log in with GDM with it, etc. Goal: I need a little more security - separate a few apps! How: run 3 applications ( Transmission, Google Chrome, Wine ) with other users ( so not with "USER A" ). But when i'm logged in ( in GUI ) with "USER A", i need icons on he's the Desktop. E.g.: just one click ( without asking for password!! ) and Google Chrome starts with another user. How exactly can i do this? - How can i "grant" "USER A" with permissions ( securely ) so that it doesn't needs a password, when running applications with "USER B", "USER C", etc.? Are there any howtos/docs/links? Thank you in advance.

2 1

still suffering from ENE0100 bug
by antonio montagnani 06 Feb '11

06 Feb '11

After installation of kernel 2.6.35.10-74, my laptop sometimes doesn't complete boot complaining with this message: Starting udev: udevd-work[495] `/sbin/modprobe -bv acpi: ENE0100:` unexpected exit with statua 0x0009 [OK] this bug has been reported as closed (see #664145) _________________________________________________________ I can boot again only if I switch to an old kernel, it does not help to restart the machine. What is the ENE0100 used for? Can I permanently disable it adding blacklist en_ir to /etc/blacklist?? I don't have any related option in my BIoS -- Antonio -------------------------------------------- Prima di stampare pensa all'ambiente Think about environment before printing Skype: amontag52 Linux Fedora 14 Laughlin on Casa Linux user number 362582 http://www.campingmonterosa.com http://www.studiodacolpaloschi.it -------------------------------------------

1 0

if the file changes send email about diff
by kellyremo 06 Feb '11

06 Feb '11

I have 2 script. Script "A", Script "B". Script "A" is regulary watching the "dhcpacks" [dhcp release is configured to 2mins] in the logs, for the past 2 minutes. it writes the MAC addresses to a file [/dev/shm/dhcpacks-in-last-2min.txt] every 2 minutes. Ok, this is working, active clients are in this file. Super! Script "B": http://pastebin.com/raw.php?i=wvhwhPWu I'm trying to create a script, that watches the changes in "/dev/shm/dhcpacks-in-last-2min.txt" file [in every 1 sec]. Ok. But: my "watcher" script [the pastebined] is not working fine...sometime it works, sometime it send that someone "XY logged out", but it's not true! nothing happened, and the problem is not in the Script "A". Can someone help me point out, what am i missing? How can i watch a file [in every sec], that contains only MAC addresses, and if someone doesn't get dhcpack in 2 minutes, the file "/dev/shm/dhcpacks-in-last-2min.txt" changes, and that clients MAC address will be gone from it, and i need to know, who was it [pastebined my script..but somethings wrong with it]. Thank you for any help..i've been pathing my script for days now.. :\

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