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  • Munin "Available entropy" when using adress space layout randomization

    - by clawspoon
    Having just configured munin for statistics logging on my gentoo server (hardened profile), I am noticing that my "Available entropy" is consitently in the 200-300 range. This seems way to low, so I checked it manually using the command $ cat /proc/sys/kernel/random/entropy_avail 3544 Odd. Consistently very low values in Munin and practically filled up when checking manually. After thinking about the problem for a while I came to the conclusion that the problem is probably that I'm using Adress Space Layout Randomization which is using the entropy when running commands/programs. Since Munin runs a whole slew of programs all the entropy is used up, and Munin then measures how much entropy there is, resulting in the low values. Does anyone have any experience with this? How can this be avoided?

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  • getting rich text from the X clipboard

    - by intuited
    How can rich text be obtained from the X clipboard? For example, if you copy some text from a web browser and paste it into kompozer, it pastes as HTML, with links etc. preserved. However, xclip -o for the same selection just outputs plain text. I'd like to pull the HTML out and into a text editor.

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  • DNS caching server config problem

    - by Alex
    I have a Bind DNS caching-only server setup that is working. I am bringing up a new AD domain controller that will also be a DNS server for that AD but I don't want it responding to any DNS queries except those that are AD related. So, my goal is to leave this caching server as the primary DNS server for stations on the network and have it forward requests for the AD domain to the domain controller. My understanding is that I just need a forward zone for that domain pointing to the domain controller. However it does not seem to be working. So that leaves me to think that my caching server is not forwarding properly. For example, this AD is going to have a naming convention of hostname.mydomain.local. If I do an nslookup and specify the domain controller's IP address as the server, I can query addresses that exist in DNS on that server, such as dc1.mydomain.local. However, queries to my caching server times out (I get a response from the caching server if I query mydomain.local but none of the objects in that domain). Any suggestions? Here is my named.conf file: options { directory "/var/named"; listen-on { 192.168.0.14; 127.0.0.1; }; forwarders { ; ; }; forward first; }; zone "." in { type hint; file "db.cache"; }; zone "0.0.127.in-addr.arpa" in { type master; file "db.127.0.0"; }; //forward zone for mydomain.local zone "mydomain.local" { type forward; forwarders { 192.168.1.21; }; };

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  • How to configure a static wildcard subdomain with dnsmasq.

    - by Prody
    I have a network behind a NAT with a few machines. The machines are: router - NAT, dnsmasq, forwarding - directly connected to the inet server - which runs ssh, www and some other stuff clients - which do stuff on server I also have mydomain.com. server.mydomain.com is pointing to my connection's IP (single IP), which is the router, which forwards ports to server. Server, has a httpd running, which serves different sites based on vhosts. So I have site1.server.mydomain.com, site2.. The problem is that all the traffic is going thru the router, and when I check logs I always see the router's IP for everything (so it's hard to see who is running the script with the while(1)). I would just ServerAlias site1.server.local, but most of the sites have a root URL saved somewhere on top of which other URLs are built, so I can't do that. The solution for me would be telling dnsmasq somehow to answer to *.mydomain.com with server's IP. Is this possible somehow?

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  • Encoding with FFmpeg using a FIFO

    - by Ashot Martirosyan
    Hello everyone. I'm trying to convert Flac audio file to AAC file using command line. So I wrote this ffmpeg -i input.flac temp.wav faac -q 120 -o output.m4a temp.wav It's working fine. Now I want to do the same using fifo, so I'm writing this mkfifo temp.wav ffmpeg -i input.flac temp.wav & faac -q 120 -o output.m4a temp.wav And it's freezing. So could you tall me what I'm doing wrong. Thanks a lot, and sorry for my English.

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  • Ubunt doesn't mount one of my NTFS disks

    - by Jader Dias
    There is a mountable /dev/sda NTFS formatted (Windows disk) There is no /dev/sdb when I ls /dev (NTFS Data disk) There is a /dev/sdc which is another disk of the same model, (Ubuntu disk) I can see that Ubuntu detected this unmountable disk in the Disk Utility It states incorrectly it is unpartioned and a RAID volume. (it previously was RAID0 setup with /dev/sdc but now it is a simple volume, no RAID whatsoever) When I boot Windows 7, it uses this unmountable disk without a glitch The problem happens in both IDE and AHCI modes Ubuntu 10.04 Lucid Lynx

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  • Script to run chown on all folders and setting the owner as the folder name minus the trailing /

    - by Shikoki
    Some numpty ran chown -R username. in the /home folder on our webserver thinking he was in the desired folder. Needless to say the server is throwing a lot of wobbelys. We have over 200 websites and I don't want to chown them all individually so I'm trying to make a script that will change the owner of all the folders to the folder name, without the trailing /. This is all I have so far, once I can remove the / it will be fine, but I'd also like to check if the file contains a . in it, and if it doesn't then run the command, otherwise go to the next one. #!/bin/bash for f in * do test=$f; #manipluate the test variable chown -R $test $f done Any help would be great! Thanks in advance!

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  • Microsoft dans le top 20 des contributeurs au noyau Linux, 75% du code fourni par des développeurs rémunérés

    Microsoft dans le top 20 des contributeurs au noyau Linux 75% du code fourni par des développeurs rémunérés La publication de la liste des contributeurs au noyau Linux vient confirmer une fois de plus que Microsoft voit en l'open source une opportunité plus qu'une menace. L'éditeur qui a déjà pris l'initiative de passer plusieurs de ses projets en open source et d'accepter pour la première fois des contributions externes pour certains, se hisse dans le top 20 des contributeurs au noyau Linux depuis la version ...

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  • How to filter Varnish logs based on XID?

    - by Martijn Heemels
    I'm running into infrequent 503 errors which appear hard to pinpoint. Varnishlog is driving me mad, since I can't seem to get the information I want out of it. I'd like to see both the client- and backend-communications as seen by Varnish. I thought the XID number, which is logged on Varnish's default error page, would allow me to filter the exact request out of the logging buffer. However, no combination of varnishlog parameters gives me the output I need. The following only shows the client-side communication: varnishlog -d -c -m ReqStart:1427305652 while this only shows the resulting backend communication: varnishlog -d -b -m TxHeader:1427305652 Is there a one-liner to show the entire request?

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  • SSMTP to forward root@localhost mail

    - by Redconnection
    I would like to forward mail that gets sent root@localhost on multiple servers to our company admin account (e-mail is hosted on gmail) I have installed ssmtp on centos 5.5 via yum and configured it. i've also changed the last line in /etc/aliases to reflect where mail to root should go to. I've then tried sending mail to root - this gets delivered without a problem (mail -v root) I've also tried sending mail to root@localhost - this is not delivered to the specified gmail account.

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  • How to back up initial state of external backup drive?

    - by intuited
    I've picked up an HP Simplesave external drive. It comes with some fancy software that is of no use to me because I don't use Windows. Like many current consumer-targeted backup drives, the backup software is actually contained on the drive itself. I'd like to save the drive's initial state so that I can restore it if I decide to sell it. The backup box itself is somewhat customized: in addition to the hard drive device, it presents a CDROM-like device on /dev/sr0. I gather that the purpose of this cdrom device is to bootstrap via Windows autoplay the backup application which lives on the disk itself. I wouldn't suppose any guarantees about how it does this, so it seems important to preserve the exact state of the disk. The drive is formatted with a single 500GB NTFS partition. My initial thought was to use dd to dump the disk (/dev/sdb) itself, but this proved impractical, as the resulting file was not sparse. This seemed to be because the NTFS empty space is not filled with zeroes, but with a repeating series of 16 bytes. I tried gzipping the output of dd. This reduced to the file to a manageable size — the first 18GB was compressed to 81MB, versus 47MB to tarball the contents of the mounted filesystem — but it was very slow on my admittedly somewhat derelict Pentium M processor. The time to do that first 18GB was about 30 minutes. So I've resorted to dumping the disk state and partition data separately. I've dumped the partition state with sfdisk -d /dev/sdb > sfdisk.-d.out I've also created a compressed image of the NTFS partition (the only one on the disk) with ntfsclone --save-image --output - /dev/sdb1 | gzip -c > ntfsclone.img.gz Is there anything else I should do to ensure that I can restore the precise original state of the drive?

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  • In Ubuntu I make changes to php.ini but nothing happens

    - by MrAn3
    Hi, Apache with php works well, but none of the changes I make in php.ini have effect, I've even delete all the contents of the file, then restart Apache, and run phpinfo() and surprisingly everything continues working well. The file I'm editing is the one that appears in the phpinfo() like "Loaded Configuration File". (/etc/php5/apache2/php.ini) P.S. I'm running Ubuntu 9.04 and PHP 5.2 Thanks in advance. More Details: I'm restarting with sudo /etc/init.d/apache2 restart, I've also tried sudo /etc/init.d/apache2 stop, and then start, at restarting I get: Restarting web server apache2 apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName ... waiting apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName [ OK ] "which php" did not produce any results. My installation of PHP was done using Synaptic Package Manger, choosing "Mark Packages by task" and then LAMP server. I don't have any clue of what to do...

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  • Sound plays on headphones and speakers with Lenovo ThinkPad L512 + Ubuntu 10

    - by Oscar Godson
    The only thing really missing from this install is this issue with the sound. I've searched all over the forums and i found one thing where you get the model and codecs and write them to a file, however, I can't seem to find what my "model" is because none of the postings have anything about Lenovo laptops. Here is the command they all asked for: Code: cat /proc/asound/card0/codec#* | grep Codec Codec: Realtek ALC269 Codec: Intel G45 DEVIBX With that info, how do I get the model, and how do I get my speakers to stop playing when headphones are plugged in. Also, I don't have any software installed like pulse audio either, so it's not that. Thanks so much to whoever can answer this... The Ubuntu forums are nearly useless... ive never gotten a correct answer back on that site.

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  • grub2 error: out of disk

    - by Carl Smotricz
    I'm trying to make a 250G USB hard disk Ubuntu-bootable on a Compaq nc6220 laptop. I've removed all other disks, so /dev/sda (the USB disk) is the only disk other than CDROM. I installed Ubuntu 9.10 to this disk from the live CD, putting the bootloader on /dev/sda . The default system couldn't be booted, and nothing I did in the Grub menu/cmdline helped. So I chrooted onto the disk and did grub-install /dev/sda. That seemed to work fine, but Grub (1.97 beta 4) keeps coming up with error: out of disk Even when I drop to the command line to do something simple like ls or help, it's always the same error message. Any hints for resolving this, please?

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  • Why does everybody have the same MAC address as me?

    - by iblue
    I just bought some consumer-grade McCheap PCI-E NICs (and this was a bad idea). They both have the same MAC address. When I google it, it seems like every card of that company has the same address: 00:50:43:00:45:3e. Shouldn't they be unique? According to lspci it's a Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller (rev 20). Is there a way to permanently flash a new address?

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  • getting Thunderbird rescan imap folder

    - by asdmin
    Since I got an external program (imapfilter) modifying my imap folder, thunderbird keeps loosing track of new messages. Messages are moved upon arrival in sub-folders, making Thunderbird unable keep tracking them - therefore I have no clue which folders to look for new messages, and newly created folders (even I subscribe them after creation) does not show up until I restart the mail client. Is there any extension or setting for Thunderbird which I could use to trigger re-scanning my folder tree? Please don't waste time on advices like restarting Thunderbird: takes a great amount of time, or "use Evolution (or any other mail client)", or use internal mail filters: they are not sophisticated enough or procmail/fetchmail: I'm arranging a remote imap server for good EXTENSION 1: even folders can be created in the background, without Thunderbird would know it has been created.

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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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  • What music streaming app fits my needs on Ubuntu?

    - by Jim
    I'm looking for an application to stream Internet radio on Ubuntu. I like listening to Radio Paradise while I work. Right now, I'm using Amarok. "Movie Player" sometimes refuses to open the stream, and VLC doesn't keep its window title updated with the currently playing track. Amarok has nice translucent notifications when tracks change, but track changes in streams don't trigger the notifications. Mostly, I want something that reliably opens streams and makes it easy to see the name of the track that's playing. If it has a built-in directory of streaming radio stations, that would be a big benefit.

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  • Table 'mysql.host' doesn't exist

    - by eriktm
    100913 10:21:29 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql /usr/local/mysql/libexec/mysqld: Table 'mysql.plugin' doesn't exist 100913 10:21:29 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 100913 10:21:29 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist 100913 10:21:29 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended This is the output from the log-file for mysqld I get when I try to start mysqld with the mysqld_safe command. I tried to run mysql_upgrade to correct the first error, but this command seems to require the server to be started, which is my original problem. Next, it says that the table mysql.host does not exist. I was unable to figure out what this is caused by.

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  • What is the best vfat driver for FUSE?

    - by Vi
    FUSE filesystem list show some FuseFat and FatFuse. One is 404 not found, others is old, not buildable and probably depends on glib. Now I'm using mountlo for the task (mounting USB drives in generic way without root access or suid things (except of fusermount itself), but it looks too big for such task. Is there good vfat FUSE driver?

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  • Barnyard Service - MySQL Error

    - by SLYN
    I installed barnyard2 and saved as a service. When I run service barnyard2 start, Barnyard2 is failed. After I run tail -100 /var/log/messages and I encounter a fault like this. ERROR database: 'mysql' support is not compiled into this build of snort#012 Aug 22 11:52:06 barnyard2[25771]: FATAL ERROR: If this build of barnyard2 was obtained as a binary distribution (e.g., rpm,#012or Windows), then check for alternate builds that contains the necessary#012'mysql' support.#012#012If this build of barnyard2 was compiled by you, then re-run the#012the ./configure script using the '--with-mysql' switch.#012For non-standard installations of a database, the '--with-mysql=DIR'#012syntax may need to be used to specify the base directory of the DB install.#012#012See the database documentation for cursory details (doc/README.database).#012and the URL to the most recent database plugin documentation. Aug 22 11:52:06 barnyard2[25771]: Barnyard2 exiting What sould I do for solving this problem? When I installed Barnyard2, I used these commands: # ./configure --with-mysql --with-mysql-libraries=/usr/lib64/mysql # make ; make install (My System is CentOS 6.5 x86_64.)

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