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  • File audit in Linux: how to watch directory tree for deletions?

    - by FractalizeR
    Hello. I have a forum script running on server and somehow small number of attachments begin to get lost. I want to find out what is deleting them and at what time. How can I setup Linux auditd (auditctl) to watch directory tree (attachments are stored inside multi-level directory tree) to watch for file deletions there? May be I should use some other tool for this?

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  • Linux program to convert audio file of fax transmission to image?

    - by bdk
    I have a number of uncompressed audio files recorded off of an analog (POTS) telephone line of fax transmissions. Is there a Linux utility or library I could use to convert these files into images of the fax they contain? I'm not looking to send/receive a fax via a modem, but just to "replay" the communications tones and parse out the fax message.I'm guessing this may not be possible due to duplex issues and not knowing which end of the conversation is sending what,but thought I'd ask to see if anyone knew of something.

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  • mint linux, DVD drive keeps randomly being accessed. unsure how to find culprit

    - by juicebox
    I have a workstation with mint linux 12. It seems like the DVD drive on the machine keeps randomly "activating". By activating it makes noise, the light turns on, and it seems like it is checking if a disk is in it. At first I thought I was being hacked and someone/something was trying to check if I had media in the DVDRom drive. I ruled that out with netstat and rkhunter. I checked my logs and the only thing I can find that might help point out the problem are these repeated chunks in syslog: Mar 24 17:47:31 rich-MINT kernel: [ 9846.551422] ata2.00: cmd a0/00:00:00:08:00/00:00:00:00:00/a0 tag 0 pio 16392 in Mar 24 17:47:31 rich-MINT kernel: [ 9846.551424] res 51/40:01:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error) Mar 24 17:47:31 rich-MINT kernel: [ 9846.551427] ata2.00: status: { DRDY ERR } Mar 24 17:47:31 rich-MINT kernel: [ 9846.551433] ata2.00: hard resetting link Mar 24 17:47:32 rich-MINT kernel: [ 9846.868012] ata2.01: hard resetting link Mar 24 17:47:32 rich-MINT kernel: [ 9847.344054] ata2.00: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Mar 24 17:47:32 rich-MINT kernel: [ 9847.344067] ata2.01: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Mar 24 17:47:32 rich-MINT kernel: [ 9847.376118] ata2.00: configured for PIO0 Mar 24 17:47:32 rich-MINT kernel: [ 9847.393047] ata2.01: configured for UDMA/133 Mar 24 17:47:32 rich-MINT kernel: [ 9847.397046] ata2: EH complete and again Mar 24 17:55:28 rich-MINT kernel: [10323.633268] sr 1:0:0:0: ioctl_internal_command return code = 8000002 Mar 24 17:55:28 rich-MINT kernel: [10323.633270] : Sense Key : Aborted Command [current] [descriptor] Mar 24 17:55:28 rich-MINT kernel: [10323.633275] : Add. Sense: No additional sense information Mar 24 17:55:11 rich-MINT kernel: [10306.640009] ata2.00: link is slow to respond, please be patient (ready=0) Mar 24 17:55:16 rich-MINT kernel: [10310.840009] ata2.00: SRST failed (errno=-16) Mar 24 17:55:16 rich-MINT kernel: [10310.840016] ata2.00: hard resetting link Mar 24 17:55:16 rich-MINT kernel: [10311.160013] ata2.01: hard resetting link Mar 24 17:55:16 rich-MINT kernel: [10311.636061] ata2.00: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Mar 24 17:55:16 rich-MINT kernel: [10311.636075] ata2.01: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Mar 24 17:55:16 rich-MINT kernel: [10311.668122] ata2.00: configured for PIO0 Mar 24 17:55:16 rich-MINT kernel: [10311.684854] ata2.01: configured for UDMA/133 Mar 24 17:55:17 rich-MINT kernel: [10312.105473] ata2: EH complete (Copied from Pastebin - http://pastebin.com/YNDrnyzH) If any linux masters could take a quick look at these log outputs and help me understand what is going on , much appreciated.

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  • 64-bit linux kernel only seeing 3 of 4GB after upgrade...

    - by Blaine
    Hey everyone. I am running Ubuntu 9.04 64-bit on my macbook. I had 2GB of ram before, and everything ran great. I just upgraded to 2x2GB (4GB), but my system only sees 3GB of it. OS X, which I am dual booting, sees all 4GB. Also, my video performance is incredibly lacking. Before the upgrade my compiz benchmark was full at 80fps, and now it is at 22fps with very choppy window dragging. Has anyone ever heard of this on a 64-bit kernel? I just don't quite understand what could be the issue. 10$ uname -a Linux macbook 2.6.28-15-generic #49-Ubuntu SMP Tue Aug 18 19:25:34 UTC 2009 x86_64 GNU/Linux $ free -m total used free shared buffers cached Mem: 2953 1031 1921 0 114 427 -/+ buffers/cache: 489 2463 Swap: 7812 0 7812 9$ lsmod Module Size Used by i915 77960 2 drm 123232 3 i915 binfmt_misc 18572 1 ppdev 16904 0 btusb 21784 2 bridge 63776 0 stp 11140 1 bridge bnep 22912 2 vboxnetadp 109356 0 vboxnetflt 116972 0 vboxdrv 1721612 1 vboxnetflt uvcvideo 69640 0 compat_ioctl32 18304 1 uvcvideo videodev 45184 2 uvcvideo,compat_ioctl32 v4l1_compat 23940 2 uvcvideo,videodev lp 19588 0 parport 49584 2 ppdev,lp snd_hda_intel 557492 3 snd_pcm_oss 52352 0 snd_mixer_oss 24960 1 snd_pcm_oss snd_pcm 99464 2 snd_hda_intel,snd_pcm_oss arc4 10240 2 snd_seq_dummy 11524 0 ecb 11392 2 snd_seq_oss 41984 0 snd_seq_midi 15744 0 snd_rawmidi 33920 1 snd_seq_midi snd_seq_midi_event 16512 2 snd_seq_oss,snd_seq_midi snd_seq 66272 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event ath9k 310584 0 snd_timer 34064 2 snd_pcm,snd_seq snd_seq_device 16276 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq mac80211 251528 1 ath9k iTCO_wdt 21712 0 iTCO_vendor_support 12420 1 iTCO_wdt joydev 20992 0 video 29204 0 snd 78920 15 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device applesmc 37700 0 output 11648 1 video soundcore 16800 1 snd pcspkr 11136 0 cfg80211 43680 1 mac80211 appletouch 19972 0 isight_firmware 11520 0 input_polldev 12688 1 applesmc intel_agp 39408 1 snd_page_alloc 18704 2 snd_hda_intel,snd_pcm led_class 13064 2 ath9k,applesmc hid_apple 15872 0 usbhid 47040 0 ohci1394 42164 0 ieee1394 108288 1 ohci1394 sky2 63364 0 fbcon 49792 0 tileblit 11264 1 fbcon font 17024 1 fbcon bitblit 14464 1 fbcon softcursor 10368 1 bitblit Some information from dmesg: [ 795.820163] ACPI: EC: GPE storm detected, transactions will use polling mode [ 1762.709516] [drm:i915_getparam] *ERROR* Unknown parameter 6 [ 1763.078130] [drm:i915_getparam] *ERROR* Unknown parameter 6 [ 2362.760889] [drm:i915_getparam] *ERROR* Unknown parameter 6 [ 2416.352084] ACPI: EC: missing confirmations, switch off interrupt mode. [ 3718.721095] [drm:i915_getparam] *ERROR* Unknown parameter 6 [ 3719.108914] [drm:i915_getparam] *ERROR* Unknown parameter 6 [ 4318.773266] [drm:i915_getparam] *ERROR* Unknown parameter 6 [ 9513.813066] CE: hpet increasing min_delta_ns to 15000 nsec [ 9693.815684] npviewer.bin[6736]

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  • Graphical corruption during Linux startup and shutdown - should I be worried?

    - by Macha
    For the last month, when starting up or shutting down my laptop under Linux, I would get graphical corruption. Startup has an colour inverted, grainy rendition of what should be displayed while shutdown has a red background with all the text replaced by grey rectangles. At the very least this affects Fedora, Ubuntu and Xubuntu. Windows is not affected. Outside of startup/shutdown the system is fine. Should I be worrying about this?

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  • How to change shortcut keys in Thunderbird 3 for Linux?

    - by Josh
    I use Thunderbird on Ubuntu Linux and have just upgraded to Ubuntu 10 / Thunderbird 3. One of my gripes however is that Thunderbird uses a number of shortcut keys that have no secondary key requirements, for example, "Mark as Read" is M. Not ControlM. Just M. Worse, "Mark as Junk" is J. Which means I sometimes inadvertently mark messages as Junk. How can I customize Thunderbird's shortcuts so, for example, "Mark as Junk" is ControlJ?

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  • How does Azureus get my firewall to open a port (Debian Linux)?

    - by Norman Ramsey
    I downloaded Azureus (a bittorrent client) for Debian Linux, and I notice that Azureus got my firewall (a Verizon wireless base station) to open a TCP and UDP port forwarding for it, without my having to do anything. My base station is password protected, and I'm alarmed at the idea that any random application can open ports without my knowing about it. Can somebody explain to me what is going on and how it is possible that Azureus can create this port-forwarding rule without any authentication?

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  • Is there a program that can colourize the output of any linux command?

    - by BeeBand
    Or would I have to write my own? What's the best language for building a tool of this kind? I'm kind of new to linux, but I'm guessing that you could pass the output of a program to a particular script and have it display it in various colours, based on some regular expressions (constructed from some kind of config file perhaps). Or has it been done already...?

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  • How can I clear *old* browsing data from Google Chrome Linux, while keeping more recent data?

    - by Norman Ramsey
    I can find plenty of information on how to clear Google Chrome's recent browsing data, in various periods, as well as clearing all browsing data. But I want to clear old browsing data—say for a start, anything over two months old. (I'm trying to save space on a crowded laptop.) Does anyone know any principled way to do this, or shall I just dive into ~/.config/google, start removing likely-looking files, and hope for the best. I run Google Chrome on Debian Linux.

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  • Is there anything to open .docx documents on Linux (Ubuntu) ?

    - by ereOn
    Hi, My mother has some serious issues using Windows (viruses, spywares, and so on) and I seriously think about setting up Ubuntu as a replacement. (That would ease my "job" as well) The only concern I have is, is there anything to edit .docx (or .xlsx, .pptx, ...) documents on Linux ? Last time I tried OpenOffice (was 3 years ago), it was only able to open "old" MS Office documents (.doc, .xls, ...). Thank you very much for your answers !

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  • Anyone else experiencing high rates of Linux server crashes during a leap second day?

    - by Bron Gondwana
    POSTMORTEM Anticlimax: only thing that died was my VPN (openvpn) link to the cluster, so there was an exciting few seconds while it re-established. Everything else was fine. Starting back ntp everywhere. If you look at Marco's blog at http://my.opera.com/marcomarongiu/blog/2012/06/01/an-humble-attempt-to-work-around-the-leap-second - he has a solution for phasing the time change over 24 hours using ntpd -x to avoid the 1 second skip. Give that a go if it matters to you. For the systems I run, the jump isn't a problem. Just today, Sat June 30th - starting soon after the start of the day GMT. We've had a handful of blades in different datacentres as managed by different teams all go dark - not responding to pings, screen blank. They're all running Debian Squeeze - with everything from stock kernel to custom 3.2.21 builds. Most are Dell M610 blades, but I've also just lost a Dell R510 and other departments have lost machines from other vendors too. There was also an older IBM x3550 which crashed and which I thought might be unrelated, but now I'm wondering. The one crash which I did get a screen dump from said: [3161000.864001] BUG: spinlock lockup on CPU#1, ntpd/3358 [3161000.864001] lock: ffff88083fc0d740, .magic: dead4ead, .owner: imapd/24737, .owner_cpu: 0 Unfortunately the blades all supposedly had kdump configured, but they died so hard that kdump didn't trigger - and they had console blanking turned on. I've disabled console blanking now, so fingers crossed I'll have more information after the next crash. Just want to know if it's a common thread or "just us". It's really odd that they're different units in different datacentres bought at different times and run by different admins (I run the FastMail.FM ones)... and now even different vendor hardware. Most of the machines which crashed had been up for weeks/months and were running 3.1 or 3.2 series kernels. The most recent crash was a machine which had only been up about 6 hours running 3.2.21. THE WORKAROUND Ok people, here's how I worked around it. disabled ntp: /etc/init.d/ntp stop created http://linux.brong.fastmail.fm/2012-06-30/fixtime.pl (code stolen from Marco, see blog posts in comments) ran fixtime.pl without an argument to see that there was a leap second set ran fixtime.pl with an argument to remove the leap second NOTE: depends on adjtimex. I've put a copy of the squeeze adjtimex binary at http://linux.brong.fastmail.fm/2012-06-30/adjtimex - it will run without dependencies on a squeeze 64 bit system. If you put it in the same directory as fixtime.pl, it will be used if the system one isn't present. Obviously if you don't have squeeze 64 bit... find your own. I'm going to start ntp again tomorrow. As an anonymous user suggested - an alternative to running adjtimex is to just set the time yourself, which will presumably also clear the leapsecond counter.

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  • how to check open ports of bunch of website at once with nmap/linux?

    - by austin powers
    hi , I want to use nmap in such a way that I could check bunch of server's port at once for checking whether their particular port is open or not? right now I have 10 ip addresses but in future this could be more . I know the very basic command in linux like cat/nano/piping but I don't know how can I feed to nmap the list of my servers to open them one by one and return the result.

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