by clicking on this link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git (wow! this truly shows the power of Open Source / Free Software… complete transparency in development process) problem: lawyers without social skills WILL destroy the planet and mankind and linux “Linux’s creator is stepping […]
return value: any exit/return/result value other than 0 is considered an error. you can output the return value of the last command like this: echo $? 0 inside a script you can exit and return an exit code like this: […]
vi countdown.sh; # create a new file with those lines #!/bin/bash COUNT=10 while (( COUNT > 0 )) do echo -e “$COUNT \c” sleep 1; (( COUNT — )) done echo -e “\n\nWe have lift off!!” ESC […]
iconv.man.txt – allows (file?) conversion between charsets / encodings all available encodings: iconv_debian8_convertable_charsets.txt example: iconv -f UTF-8 -t ISO-8859-15 file.input -o file.output file file.output file.output ASCII text iconv -f ASCII -t UTF-8 file.input -o file.output file.output: ASCII text
TOS-based systems (Atari ST) used a row of bombs to indicate a critical system error. Number of bombs displayed revealed information about the error. The error (also called an exception) is reported by the Motorola 68000 microprocessor. The very first […]
what it means: there are updates for windows … (windows itself is spyware :-D)
i have no idea where they get their data from… but they have a nice ranking page… not sure if that is a true good representation of the market though. https://distrowatch.com/dwres.php?resource=popularity it is crazy… in 2017 – Linux has ONLY […]
a hacked e-mail account is a catastrophe – look at Hillary. telnet dwaves.de 25; # a simple telnet tells you that this server is running Trying 78.46.249.71… Connected to dwaves.de. Escape character is ‘^]’. 220 dwaves.de ESMTP Exim 4.XX_X Tue, […]
this seems to be a result of updating VirtualBox without updating the extension… the version of extension and VirtualBox need to match oterhwise this error. VERR_PDM_DEVHLPR3_VERSION_MISMATCH 0x80004005 download the extension matching your version of virtualbox http://download.virtualbox.org/virtualbox/5.1.22/Oracle_VM_VirtualBox_Extension_Pack-5.1.22-115126.vbox-extpack uninstall any older version […]
in general programs = processes = tasks = job less is more (security) run as little software as you absolutely need – uninstall/disable all services you don’t need. less software = less lines of mistaken code = less security flaws. […]
# all these commands will modify /etc/passwd su – root # disable login for user usermod -s /usr/sbin/nologin username # change login-shell of username to bash usermod -s /bin/bash username # change login-shell of username to sh usermod -s /bin/sh […]
passwd -l maria; # disables account maria passwd: password expiry information changed. grep maria /etc/shadow maria:!$6$w9DaelrP$/tJiXC2PU0B.XOupP0sFTySis5VfkMwv0DnoFy3.d.nC8gXJU.DSbU0Uryyex40P67keCFoQuxEjZ8RD9kDGU0:17325:0:99999:7::: passwd -u maria; # enable account maria passwd: password expiry information changed. /etc/passwd grep /bin/bash /etc/passwd; # output all interactive user accounts that use […]
client /etc/ssh/ssh_config is for client side config – here you can for example enable StrictHostKeyChecking yes /etc/ssh/ssh_known_hosts similar to ~/.ssh/known_hosts it contains the system-wide-accepted public keys of other hosts. So if you have “StrictHostKeyChecking yes” enabled, you could manually accept […]
Warning! while gpg is very likely sound and solid encryption – what is far more likely to be compromised is YOUR HARDWARE – every network card – wifi card – usb UMTS G3 modem – PCI-Card – contains enough RAM […]
i assume you have setup public-private-key-authentication and tested its workings and tightened security to only allow public-private key auth of specific non-root users. run local scripts remotely You can run local scripts remotely by executing bash on the remote system […]
Debian 12 as systemd is installed per default but not the time-sync service #wtf? su – root apt install systemd-timesyncd timedatectl set-timezone Europe/Berlin systemctl status systemd-timesyncd timedatectl; # check if sync is on Local time: Fri 2023-12-08 16:21:41 CET Universal […]
stat /etc/hosts File: ‘/etc/hosts’ Size: 249 Blocks: 8 IO Block: 4096 regular file Device: 801h/2049d Inode: 5506941 Links: 1 Access: (0644/-rw-r–r–) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2017-06-06 15:37:06.896148382 +0200 Modify: 2017-06-06 15:37:04.728130437 +0200 Change: […]
about package.deb & apt Apt is a mainly-online-repository-based (“AppStore”) software installation & package management system used by Debian, Ubuntu and Mint (and other apt based distributions). But – it is possible to manually download a package.deb and install it with: […]
the DNS system is basically the yellow pages – the phone book of the internet or any network. starting of as a single file (/etc/hosts) – to a world wide self-synchronizing system – that has grown over decades – meaning […]
a classic example of the exaggerated use of javascript. which is an slow and unreliable language and i really wonder how people manage to build larger applications with it. result was… “no there is no faster internet from us for […]
this guide is abit outdated… If you need XDebug + Eclipse look here (allows step-debugging of your php code very very nice 🙂 . (slightly more complicated setup) lighttpd is “just as good” as apache2 – except – it does […]
The good news is: It supports OSX and Linux now. Windows & Linux Servers Microsoft Exchange, Microsoft SQL, SharePoint & Active Directory Microsoft Azure & Amazon EC2 cloud workloads Adding a machine running Windows Adding a machine running Linux Adding […]
you can use the command: xdpyinfo|less to get your X-server version: name of display: :0.0 version number: 11.0 vendor string: The X.Org Foundation vendor release number: 11604000 X.Org version: 1.16.4 maximum request size: 16777212 bytes motion buffer size: 256 bitmap […]
probably outdated monitor file.config generator… but that’s what it look(ed) like: manpage: xvidtune.man.txt
looks different in every distro… Debian8 root@debian:~# uname -a; # tested on Linux debian 3.16.0-4-686-pae #1 SMP Debian 3.16.43-2 (2017-04-30) i686 GNU/Linux root@debian:~# ll /etc/X11/ total 72K drwxr-xr-x 2 root root 4.0K Jun 2 15:39 app-defaults -rw-r–r– 1 root root […]
under debian even if you install some form of desktop such as MATE Gnome2 – /usr/bin/xinit is NOT installed. not needed i guess. so i you want to enjoy the most minimal and RAM saving GUI in the world with […]
whenever you have a linux desktop (KDE, Gnome2-3) you use the x-server and a client (window-manager like lightdm) to connect to it. They communicate via network thus allowing to redirect the grafical output of remotely-run programs to the local display. […]
got it installed on debian8 and it starts but seems broken for debian8 + lightdm + MATE Gnome2 Desktop. (at least not in that Hyper-V VM) not highly important but would be fun 😀 https://code.google.com/archive/p/ardesia/downloads (you will need JavaScript to […]
i tried to get GOK working… no chance outdated. then i thought i look into caribou… i don’t get it how that works… so i went on to: florence and it just did what i expected it to do install […]
interesting but untested app under CentOS MATE Gnome2 it was successfully tested with a Brother 9460 CDN under Debian 8. Brother is shipping it’s own brsane config tool. this should work for Ubuntu as well. https://launchpad.net/simple-scan epson via usb: if […]