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• Le noyau Linux sort en version 3.15 et permet une mise en veille et une reprise plus rapides

  Le noyau Linux sort en version 3.15 et permet une mise en veille et une reprise plus rapides Comme il est de coutume, Linus Torvalds, le père du noyau Linux a annoncé la sortie de la version stable de Linux 3.15.Des améliorations de performances sont au coeur des modifications de cette troisième version du célèbre noyau open source depuis le début de cette année. Le nouveau Kernel réduit considérablement le temps de mise en veille et de reprise du système pour les ordinateurs portables.Le nouveau...

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• Apache configuration FollowSymlinks- Apply to php scripts?

  - by Josh

  I have Options set to none for my webroot directory. I also have a symmlink /var/coderoot - /var/webroot/coderoot In the php script I can do include("/var/coderoot/file"); and it works fine. Regardless of the option (yes I save and restart apache.) Does follow symlinks only apply to symlinks used in a certain way? Is there a performance loss using the include with a symmlink?

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• How to retry connections with wget?

  - by Andrei

  I have a very unstable internet connection, and sometimes have to download files as large as 200 MB. The problem is that the speed frequently drops and sits at --, -K/s and the process remains alive. I thought just to send some KILL signals to the process, but as I read in the wget manual about signals it doesn't help. How can I force wget to reinitialize itself and pick the download up where it left off after the connection drops and comes back up again? I would like to leave wget running, and when I come back, I want to see it downloading, and not waiting with speed --,-K/s.

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• Ubuntu: Memory Leak

  - by Keener

  I'm having trouble finding from where this memory leak is occurring. I'm running Ubuntu 8.04 LTS on a Dell XPS M1530. I have 3GB of ram and I'm finding after about an hour or so of use top shows me 2GBs+ used. The strange thing is when I add up the memory percentages by PID either from top or ps aux I find that I should only be using about 20-25% of my available ram. What brought this to my attention was I've begun running vmware server again. Now, obviously the ram usage spikes when I load a virtual machine, but the memory VMware is using does not account for the memory usage I'm seeing via top or free. Stopping vmware server releases the memory which was allocated to it, but I'm still unable to find where this RAM is being used. After a complete reboot, of course, the memory is fine, but very quickly it climbs to 60-80% usage with the processes only appearing to account for a third of that. Any ideas where I should look for more information on what this could be?

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• `adduser [options] user group` fails ubuntu 11.04

  - by Rob

  I'm want to use adduser However it doesn't seem to work if I provide the second argument for the user's group root@a:~# adduser rick staff adduser: The user `rick' does not exist. The group exists root@a:~# addgroup staff addgroup: The group `staff' already exists. The man page says this should work... adduser [options] user group Any ideas? I can do: adduser --ingroup staff rick So no massive issue, just seems strange.

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• Are PHP session files ever deleted?

  - by GetFree

  I see there are thousands of files in my "/tmp" directory (a CentOS machine) and almost all of them are PHP session files. I'm worried about the possible impact this might have on my system. Are those files ever deleted either by the OS, Apache or PHP? or I have to take care of it myself?

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• why page is automatically redirecting to some other sites

  - by raj

  In my browser (Firefox 10.0.7) the page is automatically redirect to some other sites without clicking any link. If I enter the superuser.com url after pressing Enter button, It redirect to some other sites. sometimes while refreshing also the page is redirect to some other site. It's redirecting to this sites http://result.seenfind.com/ncp/Default.aspx?term=gatlinburg%20cabin&u=1000670913 http://search.cpvee.com/search.php?q=gatlinburg+cabin&y=&f=2168&s= http://www.insidecelebritygossip.com/ I cleared all history and all but still same problem. I am using CentOS 6.3

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• why in /proc file system have this infomation

  - by liutaihua

  run: lsof|grep delete can find some process open fd, but system dis that it had to delete: mingetty 2031 root txt REG 8,2 15256 49021039 /sbin/mingetty (deleted) I look the /proce filesystem: ls -l /proc/[pid] lrwxrwxrwx 1 root root 0 9? 17 16:12 exe -> /sbin/mingetty (deleted) but actually, the executable(/sbin/mingetty) is normal at /sbin/mingetty path. and some soket like this situation: ls -l /proc/[pid]/fd 82 -> socket:[23716953] but, use the commands: netstat -ae|grep [socket id] can find it. why the OS display this infomation??

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• iptables logging not working?

  - by vps_newcomer

  OS: Ubuntu 10.04 Logging daemon: rsyslog For some reason i'm not getting any iptables logs, even thought i don't look through them very often i'd still like to get it working for the sake of it working XD Here is my /etc/ryslog.d/iptables.conf :msg, contains, "[IPTABLES]" -/var/log/iptables.log & ~ My iptables logging prefix is "[IPTABLES]" followed by whatever else (example [IPTABLES] Denied xyz) the /var/log/iptables.log file is being created, however its not getting any entries. I can see the logging entries in dmesg but not in syslog or messages. Whats going on? EDIT: My iptables logging rules: # logging limit LoggingLimit=5/min LoggingPrefix=IPTABLES # Logging chain iptables -N LOG_REJECT iptables -A LOG_REJECT -j LOG # join INPUT to LOG_REJECT iptables -A INPUT -j LOG_REJECT # logging iptables -A LOG_REJECT -p tcp -m limit --limit $LoggingLimit -j LOG --log-prefix "$LoggingPrefix Denied TCP: " #--log-level 7 iptables -A LOG_REJECT -p udp -m limit --limit $LoggingLimit -j LOG --log-prefix "$LoggingPrefix Denied UDP: " #--log-level 7 iptables -A LOG_REJECT -p icmp -m limit --limit $LoggingLimit -j LOG --log-prefix "$LoggingPrefix Denied ICMP: " #--log-level 7 Update: I found a thread that has the same symptoms as i do, apparently is a kernel bug. I am using a VPS so could anyone point me on how to upgrade my kernel or apply a workaround? I couldn't find a 2.6.34 kernel listed in apt-cache. Thread: http://www.linode.com/forums/viewtopic.php?t=5533

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• Failing SSHFS connection drags down the system

  - by skerit

  From time to time my sshfs mount fails. All programs using the mount freeze when it happens. I can't even ls anything or use nautilus. Is there a way to find out what's the cause and how to handle it? I've noticed regular SSH sessions to the server get their fair share of Write failed: broken pipe disconnects, too. If I wait long enough (and I'm talking about 20-ish minutes, here) it will auto reconnect and things start working again.

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• Is there a version of Debian-Lenny that is legal for export from the US?

  - by molecules

  I wanted to bundle my application in a Debian-Lenny Virtual Machine so others could download it and run it without having to configure anything. However, I don't want to have to worry about US legal issues. Many of the packages in a default Debian installation include encryption algorithms. Are all default versions export-safe?    If not, is there an export-safe version?       If not, is there an easy way to make one?

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• lucid lynx runaway process

  - by Jerome

  I am runnning lucid lynx with a gnome desktop. After uninstalling the klipper program there is a new and unwelcome process that begins at startup and takes around 66% of my cpu time. According to "top", the process number is 10 and the name of the process is "events/1". I am unable to kill the process using "top" or "kill". I have no extra startup applications except for gnome-do and tomboy. Eliminating these has no effect. Can anyone help?

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• Autosaving on emacs or xemacs files (preferably on loss of focus)

  - by Spencer

  Ideally I want to replicate with emacs functionality from TextMate, whereby on loss of focus i.e. I click away from the buffer, my file saves. If this isn't possible, I want to customize emacs so that it will autosave the file for every character I write. When I say this I don't mean I want to autosave to the ~ backup files. I want to save the file I am currently working on. I am working on a Fedora VM. Note I am not looking for a backup or autosave. I want the file I am actually in to save, so that if I loaded the html file I am editing in a web browser it would reflect my new changes without me having to explicitly change it.

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• QNAP TS-419p as a VPN Gateway?

  - by heisenberg

  Hello, I am hoping one of you might be able to help. I want to make files stored on shared folders on a QNAP TS-409p available to users over a VPN link. How is the possible? Can someone explain what I need to do. What do I need to do at the router and what do I need to do on the QNAP NAS? Effectively, what I want do do is use the built in Windows vpn client to connect to my home network and then be able to browse the shared folders. Thanks in advance.

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• Is there an email client optimized for screen readers and accessiblity?

  - by Adolfo Fitoria

  Hi. I'm currently working on a project to help visually impaired people. We're planning to use Orca screen reader for gnome. Everything is doing great but there is a problem with email web clients the most popular ones(gmail, yahoo, hotmail) are not optimized for screen readers. Is there some kind of simple email client optimized for this? Need to be very simple and straight foward and support multiple users too.

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• /var/tmp and file lifetime

  - by clorz

  Hi everyone I've got a cronjob that runs every minute and checks existence of a certain file. If there's no such file, job silently ends. If there is a file, then another script is started. That script removes the file when done. Its execution time can take up to 20 minutes. My questions are: Are there any flaws in this scheme? Is it ok to store such file in tmp? Can I be shure that nothing will attempt to remove it?

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• Why isn't passwordless ssh working?

  - by Nelson

  I have two Ubuntu Server machines sitting at home. One is 192.168.1.15 (we'll call this 15), and the other is 192.168.1.25 (we'll call this 25). For some reason, when I want to setup passwordless login from 15 to 25, it works like a champ. When I repeat the steps on 25, so that 25 can login without a password on 15, no dice. I have checked both sshd_config files. Both have: RSAAuthentication yes PubkeyAuthentication yes I have checked permissions on both servers: drwx------ 2 bion2 bion2 4096 Dec 4 12:51 .ssh -rw------- 1 bion2 bion2 398 Dec 4 13:10 authorized_keys On 25. drwx------ 2 shimdidly shimdidly 4096 Dec 4 19:15 .ssh -rw------- 1 shimdidly shimdidly 1018 Dec 4 18:54 authorized_keys On 15. I just don't understand when things would work one way and not the other. I know it's probably something obvious just staring me in the face, but for the life of me, I can't figure out what is going on. Here's what ssh -v says when I try to ssh from 25 to 15: ssh -v -p 51337 192.168.1.15 OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug1: Connecting to 192.168.1.15 [192.168.1.15] port 51337. debug1: Connection established. debug1: identity file /home/shimdidly/.ssh/id_rsa type 1 debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048 debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048 debug1: identity file /home/shimdidly/.ssh/id_rsa-cert type -1 debug1: identity file /home/shimdidly/.ssh/id_dsa type 2 debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024 debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024 debug1: identity file /home/shimdidly/.ssh/id_dsa-cert type -1 debug1: identity file /home/shimdidly/.ssh/id_ecdsa type -1 debug1: identity file /home/shimdidly/.ssh/id_ecdsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1 debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: sending SSH2_MSG_KEX_ECDH_INIT debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ECDSA 54:5c:60:80:74:ab:ab:31:36:a1:d3:9b:db:31:2a:ee debug1: Host '[192.168.1.15]:51337' is known and matches the ECDSA host key. debug1: Found key in /home/shimdidly/.ssh/known_hosts:2 debug1: ssh_ecdsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Offering RSA public key: /home/shimdidly/.ssh/id_rsa debug1: Authentications that can continue: publickey,password debug1: Offering DSA public key: /home/shimdidly/.ssh/id_dsa debug1: Authentications that can continue: publickey,password debug1: Trying private key: /home/shimdidly/.ssh/id_ecdsa debug1: Next authentication method: password

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• Why does my CentOS logrotate run at random times?

  - by Mike Pennington

  I put a logrotate configuration file in /etc/logrotate.d/ and expected the logs to rotate at a consistent time; however, they do not... log rotation times are seemingly random +/- one hour. Why are the log rotation start times random, and how can I change this? Informational: my logrotate config file looks like this... /opt/backups/network/*.conf { copytruncate rotate 30 daily create 644 root root dateext maxage 30 missingok notifempty compress delaycompress postrotate ## Create symbolic links in daily/ PATH=`/usr/bin/dirname $1`; FILE=`/bin/basename $1`; /bin/ln -s $1 $PATH/daily/$FILE endscript }

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• Cannot Login as root

  - by Josh Moore

  At my work we ship our product on pre-installed servers as a software/hardware package. We are using open SUSE 10.3 for the OS and we setup and we always log in with the root user to do maintenance on the box. Recently we just had box returned to us that the customer said the could not longer connect to the box through the network interface. So when I started to work on the box I run into the this problem: At the command prompt to login i type the user name "root" and hit enter. Then even before it asks me for a password I get "Login incorrect". I have never seen this behavior before and could not find any information about it online. Does anybody know what is going on? Thanks.

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• Debian PPTP VPN can't get out to the internet

  - by phidah

  I've setup a Debian pptp server which seems to be running fine. I can successfully access the local services on the server when connected to the VPN, but I cannot go out of the LAN, i.e. I cannot just go to any server out on the internet. I guess this is come kind of routing issue that won't allow me to use the server as a gateway? I couldn't really find any articles or similar that could tell me how to set this up properly. Thanks in advance.

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• Find hosted directories/ports in Jetty/Apache

  - by Paul Creasey

  Hi, I first asked this on SO, but i didn't get a response and i think it is probably more appropriate here. Let say I have a directory which is being hosted by Jetty or Apache (i'd like an answer for both), i know the URL including the port and i can log into the server. How can i find the directory that is being hosted by a certain port? I'd also like to go the other way, i have a folder on the server, which i know if being hosted, but i don't know the port so i can't find it in a web browser. How can i find a list of directories that are being hosted? This has been bugging me for ages but i've never bothered to ask before! Thanks.

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• DHCP server inside a virtual machine can't see other machines

  - by William

  Hi, I setup a private network from virtual machines and one of the machines is the DHCP server for the group. I want to specify a next-server for the DHCP server but I'm having trouble connecting to any of the machines that I lease IPs to. I'm just trying to do a simple ping/ssh to 10.0.0.252 (a machine with a lease) but it doesn't seem to respond. Any advice? I'm assuming I need to be able to connect to my next-server but maybe I'm wrong. Thanks.

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• How do I make sure that BOTH my server and MYSQL have the same timezone?

  - by Alex

  Because when I create a time in Python scripts..I want it to match MYSQL's time. How do I make BOTH of them pacific time?

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• Execute script before shutting down in Ubuntu

  - by juanefren

  When I shut down my computer I want to show some pending tasks that I have to do before leaving the office... I did a local application to manage those tasks, so basically I just want to run a command, and shut down after I kill the app executed. I have already tried with these options: * /etc/gdm/PostSession/Default -- this works only when I select LogOut option instead Shutdown. * /etc/rc0.d/K01mycustomscript -- execute script after X is killed * $HOME/.bash_logout -- This looks like does nothing. * ./app-to-run && sudo shutdown -h now -- Don't like it for 2 reasons, prompts for sudo password, and can't use my laptop shutdown button. I am using Ubuntu 10.04

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• How to use rsync when filenames contain double quotes?

  - by wfoolhill

  I am trying to synchronize the content of the directory my_dir/ from /home to /backup. This directory contains a file which name has a double quote in it, such as to"to. Here is my rsync command: rsync -Cazh /home/my_dir/ /backup/my_dir/ And I get the following message: rsync: mkstemp "/backup/my_dir/.to"to.d93PZr" failed: Invalid argument (22) For info, rsync works well when the synchronized filenames contain single quote, parenthesis and space. Thus, why is it bugging with a double quote? Thanks for any help.

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