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Passing LD_LIBRARY_PATH through sudo
by Alexander Farber 17 Dec '10

17 Dec '10

Hello, I have a CentOS 5.5/64bit VM, where I only have sudo rights: afarber ALL=(ALL) NOPASSWD: ALL I'm trying to pass LD_LIBRARY_PATH through sudo to install DBD::Oracle ( https://rt.cpan.org/Ticket/Display.html?id=63678 ) and have tried using "sudo -E" and also changing these lines in the stock /etc/sudoers: Defaults !env_reset Defaults env_keep = "LD_LIBRARY_PATH \ COLORS DISPLAY HOSTNAME HISTSIZE INPUTRC KDEDIR \ LS_COLORS MAIL PS1 PS2 QTDIR USERNAME \ LANG LC_ADDRESS LC_CTYPE LC_COLLATE LC_IDENTIFICATION \ LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC \ LC_PAPER LC_TELEPHONE LC_TIME LC_ALL LANGUAGE LINGUAS \ _XKB_CHARSET XAUTHORITY" Still my test call fails: afarber@VM:~> echo $LD_LIBRARY_PATH /usr/lib/oracle/11.2/client64 afarber@VM:~> sudo -E perl -e 'print $ENV{LD_LIBRARY_PATH}'; afarber@VM:~> afarber@VM:~> sudo -E perl -e 'print $ENV{HOME}'; /home/afarber Does anybody please have a suggestion here? Thank you Alex

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Stripping silent periods from MP3s
by Keith Roberts 17 Dec '10

17 Dec '10

I'm on Centos 5.5, and would like to use sox to strip out any periods of silence > 5 seconds from a batch mp3 audio files. Googling I found sox, but it does not seem to support mp3 files by default. The man page says: .mp3 MP3 Compressed Audio MP3 audio files come from the MPEG standards for audio and video compression. They are a lossy compression format that achieves good compression rates with a mini- mum amount of quality loss. Also see Ogg Vorbis for a similar format. MP3 support in SoX is optional and requires access to either or both the external libmad and libmp3lame libraries. To see if there is support for Mp3 run sox -h and look for it under the list of supported file formats as "mp3". libmad is installed: Installed Packages Name : libmad Arch : i386 Version : 0.15.1b Release : 4.el5.rf Size : 138 k Repo : installed Summary : MPEG audio decoding library URL : http://www.underbit.com/products/mad/ License : GPL Description: MAD (libmad) is a high-quality MPEG audio decoder. It currently : supports MPEG-1 and the MPEG-2 extension to Lower Sampling : Frequencies, as well as the so-called MPEG 2.5 format. All three : audio layers (Layer I, Layer II, and Layer III a.k.a. MP3) are fully : implemented. : : MAD does not yet support MPEG-2 multichannel audio (although it : should be backward compatible with such streams) nor does it : currently support AAC. SoX is installed: Name : sox Arch : i386 Version : 12.18.1 Release : 1.el5_5.1 Size : 659 k Repo : installed Summary : A general purpose sound file conversion tool. URL : http://sox.sourceforge.net/ License : GPL Description: SoX (Sound eXchange) is a sound file format converter SoX can convert : between many different digitized sound formats and perform simple : sound manipulation functions, including sound effects. [root@karsites ~]# sox -h sox: Version 12.18.1 Usage: [ gopts ] [ fopts ] ifile [ fopts ] ofile [ effect [ effopts ] ] gopts: -e -h -p -q -S -V fopts: -r rate -c channels -s/-u/-U/-A/-a/-i/-g/-f -b/-w/-l/-d -v volume -x effect: avg band bandpass bandreject chorus compand copy dcshift deemph earwax echo echos fade filter flanger highp highpass lowp lowpass mask mcompand noiseprof noisered pan phaser pick pitch polyphase rate repeat resample reverb reverse silence speed stat stretch swap synth trim vibro vol effopts: depends on effect Supported file formats: aiff al alsa au auto avr cdr cvs dat vms gsm hcom la lu maud nul ossdsp prc raw sb sf sl smp sndt sph 8svx sw txw ub ul uw voc vorbis vox wav wve Yet the mp3 support is not showing up for SoX in the above list of supported file formats. Any suggestions how to tell SoX to use the mp3 format I need please? Or are there any other programs that can be used to strip silent periods from MP3's? Using Audacity to manually edit each sound file is definately NOT and option. Kind Regards, Keith Roberts -- In theory, theory and practice are the same; in practice they are not. This email was sent from my laptop with Centos 5.5

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Intel NIC
by Helmut Drodofsky 17 Dec '10

17 Dec '10

Hallo, actual Intel Ethernet cards PCI-E - Are normal recognized by Centos 5.5 Live CD - Not recognized by 5.2 Because of vmware, I will use 5.2 Update kernel? Update Modules? What Module? Thanks for help Helmut

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/dev/null permission changes figured out
by Joe Pruett 17 Dec '10

17 Dec '10

a while back i reported an issue where /dev/null was getting set to 600 perms after a system update. i finally figured out what it is. i don't care about failed logins and have limited space on some servers, so i symlinked /var/log/btmp to /dev/null. the initscripts package does a chmod 600 /var/log/btmp, so voila /dev/null gets changed. so now i know why it happened just to me. i now need to figure out a better way to deal with btmp. any ideas from the list?

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Opinions wanted...user management options....Home network
by Tom Bishop 17 Dec '10

17 Dec '10

So I need some opinions on which way to go, for my home network I am running almost all linux, and I am starting to want to manage all of the users accounts, uid/gids for all of the devices some of which are laptops...so what is the best path going forward, on the server end I am running Centos5.5 and will be moving to centos 6 once it is released...the laptops and desktops run various flavors of Ubuntu/Fedora..Thanks in advanced, if there are any questions let me know....

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Remote firefox configuration
by Marko Vojinovic 17 Dec '10

17 Dec '10

Hi everyone! :-) I need to change some firefox configuration settings on a remote machine (running an up-to-date CentOS 5), using nothing but ssh for access (ie. no ssh -X or such, the link is too slow). The setting that I need to reconfigure is the one about what to open on startup --- in a GUI it is reached as Edit -> Preferences -> General tab -> "When Firefox starts". It should be changed from "show my windows and tabs from last time" to "show a blank page". Can anyone point me to a config file which should be modified? :-) The whole problem appeared when the user managed to open more-than-a-reasonable-number of tabs (around a hundred or so, I guess), so now when he starts Firefox it opens and freezes completely due to the load, lack of memory or whatever. The main window is completely unresponsive, nothing happens when he clicks on the "edit" menu to get to preferences (the menu does not open at all). Nothing even happens if he tries to close a tab, or even the whole program. The only thing that works is "killall firefox" from the terminal. So I guess the above option would reset Firefox to a sane state, but I need to reconfigure it manually (and remotely :-( ), in the config file, while firefox is not running. I am open to any suggestions. :-) Thanks! :-) Marko

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Sendmail Replay problem
by sync 17 Dec '10

17 Dec '10

Hi , guys : I have a problem about the sendmail replay . The following is my condition: I have installed the sendmail server on my laptop which installed CentOS 5.5 x86 64, and I want to set up the sendmail replay. That is to say . If my linux account called test and his mail address is test(a)test.com, when he get the new mail, then the server send the mail to the company mail server , the new mail address is test(a)aa.com I am confused on it . Could someone give me some suggestions? Thanks in advance....

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Samba, id, uid, Active Directory and CentOS 5
by Scott Ehrlich 17 Dec '10

17 Dec '10

I have some CentOS 5 systems that are part of an Active Directory Windows 2003 domain (using natively configured files - not likewise open). getent passwd my_account reveals uid and gid are both 10000:10000. Thus, typing: % id reveals a uid of 10000. /etc/passwd does NOT have my local account created - credentials are strictly from the Active Directory domain. The username is of the format se123456. I want my uid to be of the format 123456 (numeric part of the username. I have looked at many options for smb.conf configurations. At this point, I'm starting to believe that if getent passwd provides 10000:10000 fior uid/gid then id is providing the correct details. My SID from the domain controller is correct when queried from CentOS. usermod will not work to change the id since there is no entry in /etc/passwd. Might a shell script of some kind help convert my uid from 10000 to 123456? It should not be static calculation, since anyone logging in to that system should have their id equal the numeric portion of their username, and the numeric part may be a smaller value than 10000. The numeric part of the username matches no part of the SID from Windows. Thanks. Scott

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use parted to create "raw paration"????
by mcclnx mcc 17 Dec '10

17 Dec '10

we have CENTOS 5.5 on X86. I tried to create a "raw partition" (NOT FS) on a disk and it continue to show "ext3". How can I get ride of it? === procedures===== # parted /dev/sde GNU Parted 1.8.1 Using /dev/sde Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) p Model: DELL PERC 5/E Adapter (scsi) Disk /dev/sde: 3146GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 17.4kB 120GB 120GB primary 2 120GB 240GB 120GB ext3 primary2 (parted) rm 2 (parted) p Model: DELL PERC 5/E Adapter (scsi) Disk /dev/sde: 3146GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 17.4kB 120GB 120GB (parted) mkpart prm2 120g 240g (parted) p Model: DELL PERC 5/E Adapter (scsi) Disk /dev/sde: 3146GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 17.4kB 120GB 120GB primary 2 120GB 240GB 120GB ext3 prm2

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centos 5.5 x86_64 - mplayer install problems
by Johan Scheepers 17 Dec '10

17 Dec '10

good day, I have tried to install mplayer according to instructions from the following sites..: http://wiki.centos.org/AdditionalResources/Repositories/RPMForge http://wiki.centos.org/TipsAndTricks/MultimediaOnCentOS Then last..: [root@johan ~]# yum install libdvdcss libdvdread libdvdplay libdvdnav lsdvd mplayerplug-in mplayer mplayer-gui compat-libstdc++-33 flash-plugin gstreamer-plugins-bad gstreamer-plugins-ugly gstreamer-ffmpeg libquicktime After a lot of stuff ended up like this..: --> Processing Dependency: libdvdread.so.3()(64bit) for package: lsdvd --> Finished Dependency Resolution lsdvd-0.16-2.el5.rf.x86_64 from rpmforge has depsolving problems --> Missing Dependency: libdvdread.so.3()(64bit) is needed by package lsdvd-0.16-2.el5.rf.x86_64 (rpmforge) gstreamer-plugins-ugly-0.10.11-2.el5.rf.x86_64 from rpmforge has depsolving problems --> Missing Dependency: libdvdread.so.3()(64bit) is needed by package gstreamer-plugins-ugly-0.10.11-2.el5.rf.x86_64 (rpmforge) Error: Missing Dependency: libdvdread.so.3()(64bit) is needed by package gstreamer-plugins-ugly-0.10.11-2.el5.rf.x86_64 (rpmforge) Error: Missing Dependency: libdvdread.so.3()(64bit) is needed by package lsdvd-0.16-2.el5.rf.x86_64 (rpmforge) You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest All went well up to the above. Now I am stumped. Kindly some advice please. I am still learning as I go along. Thanks Johan

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