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  • Can not understand this script

    - by Jim
    Can someone help me understand this script? It is from sysconf_add and I am new to scripting. I need to do something similar. function add_word() { local word=$1 local word_quoted=$2 if ! word_present; then $debug && cp $file $tmpf sed -i -e "${lineno} { s/^[[:space:]]*\($var=\".*\)\(\".*\)/\1 $word_quoted\2/; s/=\" /=\"/ }" $file $debug && diff -u $tmpf $file else echo \"$word\" already present fi # some balancing for vim"s syntax highlighting }

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  • How to keep source frame rate with mencoder/ffmpeg?

    - by Sandra
    I would like to crop and rotate a video, and then encode it to mp4 or mkv. mencoder video.mp4 -vf rotate=1,crop=720:1280:0:0 -oac pcm -ovc x264 -x264encopts preset=veryslow:tune=film:crf=15:frameref=15:fast_pskip=0:threads=auto -lavfopts format=matroska -o test.mkv But when I do the above encoding, the frame rate is way too fast. The encoding options were something I found, so I don't know if that is the problem. Question All I want is to crop and rotate the video, and keep the audio/video quality as good as possible. Have anyone tried this?

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  • Where does netstat get the process name?

    - by tjameson
    I am developing a node application and there is an option to set the process title (process name). This only sets it in some tools (like ps and top), but not in htop or netstat. I found this article that explained how most applications do it, but it doesn't change in netstat. That lead me to wonder where those programs are getting the process name. Would they be getting it from /proc/##/cmdline? (## being the PID of the process) I figure messing with things in /proc is a bad idea (and probably not possible), so if this is where those programs are getting it, is there a way to change it?

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  • Kickstart Partitioning Configuration

    - by Flo
    I'be been trying to run a kickstart script with the following partition configuration: #Clear the masterboot record zerombr bootloader --location=mbr --driveorder=sda --append=" rhgb crashkernel=auto quiet" # Set up the partitions/logical volumes/logical groups clearpart --all part /boot --fstype=ext4 --asprimary --size=512 --ondisk=sda part swap --size=2048 --fstype=swap --ondisk=sda part pv.01 --fstype=ext4 --grow --size=200 --ondisk=sda part pv.02 --fstype=ext4 --grow --size=200 --ondisk=sdb volgroup VolGroup pv.01 pv.02 --pesize=32768 logvol /opt --fstype=ext4 --name=opt.fs --vgname=VolGroup --size=40000 logvol / --fstype=ext4 --name=root.fs --vgname=VolGroup --size=78000 I have two hard drives and it looks to me like its a really simple configuration. When I run the kickstart I keep getting all these errors that have to do with python files for configuring partitions. The only actual maybe useful piece of information is KeyError /dev/sda/ I tried a number of alterations of this configuration but nothing really worked. Any ideas?

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  • VLC Dynamic Range compression multiple songs

    - by Sion
    In my collection of music I have some songs which seem to be compressed nicely. But in addition to those I have songs which are overly quite compared to the louder compressed songs. So maybe the problem isn't compression but average volume. Would the Dynamic Range Compressor in VLC work for this type of problem or would I have better luck using external speakers and running it through a guitar compressor?

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  • Lost Page Write I/O Errors on CentOS LVM setup

    - by Gregg Leventhal
    I have a CentOS 6 box with LVM setup and one of the PVs is a USB disk (I know). One of them is getting the error: Oct 30 10:57:07 alpha01 kernel: lost page write due to I/O error on dm-3 Oct 30 10:57:07 alpha01 kernel: Buffer I/O error on device dm-3, logical block 4 Which is causing problems with all of the LVs on it. pvs shows the PV as unknown device. I can ls to the logical volumes and they show up in lvdisplay, but first I get a bunch of IO errors. I made sure the cables are secure between the USB drive. What should I do to get this back up and running for the meanwhile? Should I unmount each LV and run an fsck.ext4 on each one like fsck.ext4 -y /dev/vg1/lv_logvolname ?

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  • Set up Gmail with Google apps for own domain

    - by erdomester
    I rent a server from a German company. I have remote access to it as well as WHM and CPanel. I decided to use Google's mail servers for obvious reasons. I am not an admin just an average guy trying to set up what needs to be set up. The problem is I am unable to make the necessary settings. I watched Youtube tutorials, followed written ones as well as Google's help, but there is (at least) one serious problem with my domain settings. The domain console alwasy says Your MX records are incorrect When I check dappwall.com in mxtoolbox.com it says Pref Hostname IP Address TTL 10 mail.dappwall.com 46.4.88.247 24 hrs But this is not the host name. I checked WHM and my hostname is server1.dappwall.com. I can confirm it by typing the hostname command in putty. However, if I do an mx lookup at mxtoolbox.com on server1.dappwall.com or mail.dappwall.com I get Lookup failed after 1 name servers timed out or responded non-authoritatively I ran checks on the google apps toolbox on dappwall.com and two problems emerged: 1.No Google mail exchangers found. Relayhost configuration? 10 mail.dappwall.com In Google Apps > Settings for Gmail > Advanced settings it also says that my current MX records for dappwall.com is Priority Points to 10 MAIL.DAPPWALL.COM. So mail.dappwall.com again. I also have access to a robot provided by the company I rent the server from. Here I see this mail at two places but how should I (if it's necessary) modify this? I set Email routing to Automatically Detect Configuration. 2.There SHOULD be a valid SPF record. "v=spf1 include:_spf.google.com ~all" In the DNS Zone Editor I added this spf record: Name TTL Class Type Record dappwall.com. 1440 IN TXT v=spf1 include:_spf.google.com ~all In the cPanel Email Authentication page it says SPF: Status: Enabled Warning: cPanel is unable to verify that this server is an authoritative nameserver for dappwall.com. [?] Your current raw SPF record is : v=spf1 include:_spf.google.com ~all How can I confirm that my server is an authoritative nameserver for dappwall.com? In WHM Service Configuration Mailserver selection Dovecot was set but I disabled it (i don't know if that's ok). What am I missing here? Where is that mail.dappwall.com coming from?

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  • Gnome 3 screensaver (not suspend) resume hook?

    - by Daniel
    Since whenever my laptop screen resumes sleeping (i.e. wakes up from screensaving) some settings are reset, such as keyboard backlight, I'd like to run some scripts each time this happens. I'm using gnome 3 with fedora 17 by the way. When researching this issue I came across pm-utils which allows one to hook anything to events handled by pm-utils but it seems to me monitor sleeping (i.e. screensaving) is not one of them. Looks like pm-utils only handles suspend and hybernate. So is there a way to hook up custom programs to screensaver?

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  • Forcing tar to create an empty archive

    - by snostorm
    I'm trying to use tar to tar files before transfer, so I can keep the entire file path rather than losing it along the way. However, when I try to tar an empty folder, it tells me that it is cowardly refusing to create an empty archive. I want to keep the empty folder on the other end, but don't want to put anything else into the archive to make it non-empty. Is there any way to do this?

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  • make file readable by other users

    - by Alaa Gamal
    i was trying to make one sessions for my all subdomains (one session across subdomains) subdomain number one auth.site.com/session_test.php session_set_cookie_params(0, '/', '.site.com'); session_start(); echo session_id().'<br />'; $_SESSION['stop']='stopsss this'; print_r($_SESSION); subdomain number two anscript.site.com/session_test.php session_set_cookie_params(0, '/', '.site.com'); session_start(); echo session_id().'<br />'; print_r($_SESSION); Now when i visit auth.site.com/session_test.php i get this result 06pqdthgi49oq7jnlvuvsr95q1 Array ( [stop] => stopsss this ) And when i visit anscript.site.com/session_test.php i get this result 06pqdthgi49oq7jnlvuvsr95q1 Array () session id is same! but session is empty after two days of failed trys, finally i detected the problem the problem is in file promissions the file is not readable by the another user session file on my server -rw------- 1 auth auth 25 Jul 11 11:07 sess_06pqdthgi49oq7jnlvuvsr95q1 when i make this command on the server chmod 777 sess_06pqdthgi49oq7jnlvuvsr95q1 i get the problem fixed!! the file is became readable by (anscript.site.com) So, how to fix this problem? How to set the default promissions on session files? this is the promissions of the sessions directory Access: (0777/drwxrwxrwx) Uid: ( 0/ root) Gid: ( 0/ root)

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  • Compiling LAMP from source - apache2 error “no MPM package installed”

    - by kenny99
    Hi, I've compiled LAMP from source on a Ubuntu VPS. I had to remove a previously installed version of Apache then I manually compiled all the packages, which seems to have worked up unto a point - however, when I try to run commands like "/etc/init.d/apache2 restart" I get the following error - No apache MPM package installed. I have installed mpm-prefork so I don't know why i'm getting this problem. My configure command is as follows: ./configure --enable-so --enable-modules=most --with-mpm=prefork I have deliberately not used apt-get to install anything and want to avoid this if possible. Anyone have any guidance on how to resolve this error? Thanks in advance

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  • Best practice, or generally best way to set up web-hosting server, permissions, etc.

    - by Jagot
    Hi, I'm about to set up a server upon which a friend and I will be hosting web sites, and I'll be using Debian. I've set up a LAMP solution many times just to using for local testing purposes, but never for actual production use. I was wondering what are the best practices are in terms of setting the server up, in reference specifically to accessing the web root directory. A couple of the options I have seen: Set up a single user account on the server for us both to use and use a virtual host to point to the somewhere in the home directory, e.g. /home/webdev/www. Set each of us up a user account, and grant permissions in some way to /var/www (What would be the best way? Set up a new group?) I want to get this right when I first set this up as there won't be any going back for a while once our first site is up and running. Appreciate any guidance in advance.

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  • having 2 ip's on a debian 7 box

    - by David
    I just installed Debian Wheezy on my homeserver. I want to assign 2 ip's to it on the same network interface, 1 static ip (eth0) and 1 dynamic ip (eth0:1). I know it doesn't make much sense but I need it to test something. I edited my /etc/network/interfaces to be like this: auto lo eth0 eth0:1 iface lo inet loopback iface eth0 inet static address 192.168.178.240 network 192.168.178.0 netmask 255.255.255.0 broadcast 192.168.178.255 gateway 192.168.178.1 iface eth0:1 inet dhcp when I bring up eth0:1 (ifup eth0:1) I get the following error (eth0 works fine) Bind socket to interface: No such device Failed to bring up eth0:1. is it even possible to have a dynamic and static ip on the same network adapter?

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  • understanding my site's DNS records

    - by DaveM
    firstly apologies for using the word 'pointage' this is the word my french domain registrar uses so I may have used to wrong term. OK I would like to better understand what is going on on my 'pointage' record on my domain registrars site. for my (currently empty) web site it reports the following details... Type : Host : Destination A : www.mydomain.org : 62.210.176.146 A : mail.mydomain.org : 84.246.225.176 Mx : .mydomain.org : mail.mydomain.org I think I understand the MX record, that simply relays anything onto the mail.mydomain.org location. However why are the destination for the www and mail domains different. Even more confusing (for me) is the fact that if I ping either of www.mydomain.org or mail.mydomain.org the ping returns a different IP address. This IP address is consistent with that of my server (ie 92.39.247.92). So what exactly is going on ? I'm sure I could find the information on the web,I've read a few thing on the debianhelp site regarding DNS records, and it seems to suggest that the record should be a reverse lookup, but certains isn't the reverse of my servers IP ? but I don't what I should be looking for, so links to docs and search terms for google will be happily accepteed (even though they go against the grain of SO answers to question). thanks in advance. David. ps. I should add that everything seems to work just fine, and I've just descovered this part of the management page of my registrar. Edit: Addition of DNS records and ping results. The DNS record for the site. From what I've read there should only realy be a single 'A' record, so has something gone wrong ? should I change it (remove the extras and then just point www.facilitee.org - .facilitee.org and mail.facilitee.org - .facilitee.org here is the DNS record A www.facilitee.org ? 92.39.247.92 A .facilitee.org ? 92.39.247.92 A mail.facilitee.org ? 92.39.247.92 A webmail.facilitee.org ? 92.39.247.92 MX .facilitee.org ? mail.facilitee.org ping results... ~$ ping www.facilitee.org PING www.facilitee.org (92.39.247.92) 56(84) bytes of data. 64 bytes from vps4576-cloud.dns26.com (92.39.247.92): ~$ ping mail.facilitee.org PING mail.facilitee.org (92.39.247.92) 56(84) bytes of data. 64 bytes from vps4576-cloud.dns26.com (92.39.247.92): So the DNS and the ping correspond, but the 'pointage' doesn't. ~ how can I get a report of the pointage records other than from my registrar ?

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  • How can I make grub2 boot into Windows 7?

    - by Grzenio
    I had Windows 7 installed on my system, then I installed Debian testing with grub2 as its boot manager. Initially I couldn't see windows entry in grub at all, so I ran: aptitude install os-prober kcpuload update-grub Now I can see the entry, but when I select it I get only Win7 system restore, instead of the the real thing. Any ides how to make it work? EDIT: I tried the suggested approach to add a new file to /etc/grub.d, which generated an entry in grub.cfg, but it does not appear in the grub menu on boot :( I have this: grzes:/home/ga# cat /etc/grub.d/11_Windows #! /bin/sh -e echo Adding Windows >&2 cat << EOF menuentry “Windows 7? { set root=(hd0,2) chainloader +1 } And I have the following grub.cfg file: grzes:/home/ga# cat /boot/grub/grub.cfg # # DO NOT EDIT THIS FILE # # It is automatically generated by /usr/sbin/grub-mkconfig using templates # from /etc/grub.d and settings from /etc/default/grub # ### BEGIN /etc/grub.d/00_header ### if [ -s $prefix/grubenv ]; then load_env fi set default="0" if [ ${prev_saved_entry} ]; then set saved_entry=${prev_saved_entry} save_env saved_entry set prev_saved_entry= save_env prev_saved_entry set boot_once=true fi function savedefault { if [ -z ${boot_once} ]; then saved_entry=${chosen} save_env saved_entry fi } insmod ext2 set root=(hd0,3) search --no-floppy --fs-uuid --set 6ce3ff31-0ef7-41df-a6f5-b6b886db3a94 if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=640x480 insmod gfxterm insmod vbe if terminal_output gfxterm ; then true ; else # For backward compatibility with versions of terminal.mod that don't # understand terminal_output terminal gfxterm fi fi set locale_dir=/boot/grub/locale set lang=en insmod gettext set timeout=5 ### END /etc/grub.d/00_header ###

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  • installing latest apache on centos

    - by fivelitresofsoda
    hi, I'm trying to install the newest version of apache on my centos server. I did the following: Download $ wget http://httpd.apache.org/path/to/latest/version/ Extract $ gzip -d httpd-2_0_NN.tar.gz $ tar xvf httpd-2_0_NN.tar Configure $ ./configure Compile $ make Install $ make install Test $ PREFIX/bin/apachectl start And that all worked except the last step, when i type apachectl start it says 'command not found'. I ran this command from /usr/local/apache2/bin/ where it is installed but no cigar. Any idea what i am doing wrong? Thanks.

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  • Make `mount` choose a device

    - by o_O Tync
    I have a mount point — let it be /media/question — and two possible devices: a physical HDD and a remote NFS folder. Sometimes I plug the device in physically, in other cases I mount it via NFS. Is there a way to specify both of them in fstab so that executing mount /media/question will preferably choose physical volume, and when it's not available — NFS?

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  • Partition is missing in /dev

    - by haimg
    I'm having a strange problem since I moved from Centos5 to Centos6. I have three disks, first two are used as a RAID1, and third one is a stand-alone backup disk that is not listed in /etc/fstab (it is mounded when needed and then unmounted). My problem: After a boot, /dev/sdc exists but /dev/sdc1 does not. Also, the links in /dev/disks are also absent for the first partition of sdc. Disk itself is fine, and if I hot-remove it and plug it back in, /dev/sdc1 appears ok and everything is working. My question: What subsystem manages auto-discovery of disks, partitions, etc. during the boot process (e.g. what creates /dev/disks/by-label)? How do I configure it to scan /dev/sdc too and create all relevant files and links in /dev ? Edit: Here's the relevant part of dmesg output (the only place sdc appears). It does list sdc1, but it's not in /dev! sd 1:0:0:0: [sdb] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) sd 3:0:0:0: [sdc] 976773168 512-byte logical blocks: (500 GB/465 GiB) sd 1:0:0:0: [sdb] Write Protect is off sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 3:0:0:0: [sdc] Write Protect is off sd 3:0:0:0: [sdc] Mode Sense: 00 3a 00 00 sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sdb: sdc: sd 0:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda: DMAR:[DMA Read] Request device [00:1e.0] fault addr 361bc000 DMAR:[fault reason 06] PTE Read access is not set sdb1 sdb2 sdb3 sdc1 sda1 sd 1:0:0:0: [sdb] Attached SCSI disk sd 3:0:0:0: [sdc] Attached SCSI disk sda2 sda3 sd 0:0:0:0: [sda] Attached SCSI disk

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  • zlib/libxml2 duplicate package?

    - by Fusion
    I've been updating my amazon ec2 micro instance every month till now. when i try to "yum update" i receive this error : zlib-1.2.5-7.11.amzn1.x86_64 has installed conflicts libxml2 < ('0', '2.7.7', None): libxml2-2.7.6-4.12.amzn1.x86_64 zlib-1.2.5-7.11.amzn1.x86_64 is a duplicate with zlib-1.2.3-27.9.amzn1.x86_64 yum update output: http://pastebin.com/Dfq0yphN I've tried to update separately zlib and libxml2 zlib: same "duplicate" error. libxml2: Transaction Check Error: package libxml2-2.7.8-10.24.amzn1.x86_64 is already installed what can i do?

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  • s3fs changing s3 permissions?

    - by magd1
    My developer believes that s3fs is changing my bucket's permissions. Is this possible? I want my bucket to be public, but it keeps reverting back to private. Here's my fstab. s3fs#production /mnt/production fuse use_cache=/tmp,use_rrs=1,allow_other,uid=1000,gid=1000 0 0 My developer mentioned the "-o default_acl (default="private")" option. The documentation refers to "canned acl", but I don't understand what these are.

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  • How can I set deadline as the I/O scheduler for USB Flash devices by using udev rules?

    - by ????
    I have set CFQ as the default I/O scheduler. I often get bad performance when I write data into a Flash device. This is resolved if I use deadline as the I/O scheduler for USB Flash devices. I can't always change the scheduler manually, right? I think writing udev rules is a good idea. Can someone please write rules for me? I want: When I plug in a USB device, detect the type of the device. If it is a portable USB hard disk, do nothing (I think if a device has more than one partitions, it always a portable hard disk. If it is a USB Flash device, set deadline as it's scheduler.

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  • Httpd and LDAP Authentication not working for sub-pages

    - by DavisTasar
    I just recently installed a Nagios implementation, and I'm trying to get LDAP authentication working for httpd on Red Hat. (nagios.conf for Apache config below, sanitized of course) ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin" <Directory "/usr/local/nagios/sbin"> #SSLRequireSSL Options ExecCGI AllowOverride none AuthType Basic AuthName "LDAP Authentication" AuthLDAPURL "ldap://my.domain.controller:389/OU=Users,DC=my,DC=domain,DC=controller?sAMAccountName?sub?(objectClass=user)" NONE AuthzLDAPAuthoritative off AuthLDAPBindDN "CN=NagiosAdmin,DC=my,DC=domain,DC=controller" AuthLDAPBindPassword "myPassword" require valid-user </Directory> Alias /nagios "/usr/local/nagios/share" <Directory /usr/local/nagios/share> #SSLRequireSSL Options None AllowOverride none AuthBasicProvider ldap AuthType Basic AuthName "LDAP Authentication" AuthzLDAPAuthoritative off AuthLDAPURL "ldap://my.domain.controller:389/OU=Users,DC=my,DC=domain,DC=controller?sAMAccountName?sub?(objectClass=user)" NONE AuthLDAPBindDN "CN=NagiosAdmin,DC=my,DC=domain,DC=controller" AuthLDAPBindPassword "myPassword" require valid-user </Directory> Now, the initial authentication works, so when you first hit the page you can log in just fine. However, when you go anywhere else, it prompts you for authentication, fails (asking for a re-prompt), and gives this error message: [Mon Oct 21 14:46:23 2013] [error] [client 172.28.9.30] access to /nagios/cgi-bin/statusmap.cgi failed, reason: verification of user id '<myuseraccount>' not configured, referer: http://<nagiosserver>/nagios/side.php I'm almost certain its a simple flag or option, but I just can't find it, and I don't have a lot of experience working with Apache. Any assistance or help would be greatly appreciated.

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  • Video Player/Library for Ubuntu with ratings and thumbs

    - by greggannicott
    I've just made the switch to Ubuntu on my main PC and I've been looking for a media player that can: Play all the usual video formats Rate (and ideally, tag) each file Display thumbnails for each file Other than that there isn't much I'm after. Banshee comes close, but doesn't display thumbnails. I've Google'd lots but I'm running out of search terms to try. Does anyone have any suggestions? Cheers!

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