Category Archives: Linux/Unix

Extract audio from video by ffmpeg

Posted on 03/04/2020 by sta.ee

just to see if there any audio: ffprobe -i in.mp4 find string as example here: Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default) then exctract it ffmpeg -i in.mp4 -vn -acodec copy out.aac … Continue reading →

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unauthentificated guest access restriction from client pc (default in w19, w10Enterprice)

Posted on 21/11/2019 by sta.ee

gpedit.msc / computer configuration / Administrative Templates/ Network / Lanman Workstation -> enable insecure guest logons

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Debian version

Posted on 26/09/2018 by sta.ee

some ways to find out debian version: root@pom:/etc# cat /etc/issue Debian GNU/Linux buster/sid \n \l root@pom:/etc# cat /etc/debian_version buster/sid root@pom:/etc# cat /etc/os-release PRETTY_NAME=”Debian GNU/Linux buster/sid” NAME=”Debian GNU/Linux” ID=debian HOME_URL=”https://www.debian.org/” SUPPORT_URL=”https://www.debian.org/support” BUG_REPORT_URL=”https://bugs.debian.org/” root@pom:/etc# lsb_release -da No LSB modules are available. Distributor … Continue reading →

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mdadm replace broken drive on Debian Jessie

Posted on 21/04/2018 by sta.ee

If the drive should be replaced, then 1. start with determining which one is broken. See details of md device # mdadm –detail /dev/mdX # smartctl -a /dev/sdY  smartmontools required to be installed 2. replace required drive physically 3. See … Continue reading →

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rdp client from linux. Freerdp, xfreerdp

Posted on 12/04/2018 by sta.ee

The best rdp client on linux I found to work is the freerdp usage from console: $ xfreerdp /u:lamer /w:1024 /h:768 /v:1.2.3.4:13389 +clipboard /a:drive,home,/home Simple options that required mostly: /v:<server>[:port] Server hostname /port:number Server port /w:<width> Width /h:<height> Height /size:<width>x<height> … Continue reading →

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rename mdadm raid name

Posted on 16/02/2018 by sta.ee

changing drives to bigger once caused to create new md raid device for copying files from old md4 to new md127 device. After that should the md4 physically removed and md127 renamed to md4 for other settings compatibility. first unmount … Continue reading →

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debian systemd usage sample

Posted on 19/01/2018 by sta.ee

I stole info from https://wiki.debian.org/systemd Show system status: $ systemctl status List failed units: $ systemctl –failed # systemctl reset-failed List installed unit files: $ systemctl list-unit-files List all running services: $ systemctl Activates the service “example1” immediately: # systemctl … Continue reading →

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rsync over samba on debian 8 jessie for switching to newer hardware

Posted on 10/05/2017 by sta.ee

On server swap it is needed to move data from one server to another with preserving all attributes and access times. New server is installed from clean (just for fun and to prevent some old errors from updates or hacks … Continue reading →

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MiniSAS, MiniSAS HD, IPASS, SFF8087, SFF8643 example

Posted on 24/03/2017 by sta.ee

Always need this information, decided to create post for it. CBL-SAST-0507-01 HD SAS -> mSAS(SFF8087) SFF8643 to SFF8087 Mini SAS Cable cable suits to rs2bl0x0 (miniSAS or ipass or sff8087) and hdsas backplane on supermicros cse-826be1c-r902lpb, like this one: https://www.supermicro.com/products/chassis/2U/826/SC826BE1C-R920LPB … Continue reading →

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ddrescue map file bad sectors position counting

Posted on 03/02/2017 by sta.ee

If hdd failed and image recovered by ddrescue, might be necessary to know the failed sectors positions. For example hdd failed and recover by ddrescue /dev/sdd /dev/null /root/1tb.log –force log its content: # Rescue Logfile. Created by GNU ddrescue version … Continue reading →

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