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16:37, 20 May 2024 Xbl talk contribs created page Supermicro IPMI (Created page with "= Supermicro IPMI = == Fan Control== <code>ipmitool raw 0x30 0x70 0x66 0x01 0x00 0x09</code> Set Fans 0x00 to 9%. <code>ipmitool raw 0x30 0x70 0x66 0x01 0x01 0x09</code> Set Fans 0x01 to 9%. Fan Setting in BMC must be set to Full.")
13:26, 21 August 2023 Xbl talk contribs created page Aho Weinberger Kernighan (Created page with "= awk = is a full scripting language, as well as a complete text manipulation toolkit for the command line. == Use == <code>who | awk '{print $1}'</code> print the first field of every line from the who command <code>who | awk '{print $1,$4}'</code> print the first and fourth field of every line from the who command <code>who | awk '{print $NF}'</code> print the last field (NF=Number of Fields) of every line from the who command <code>date | a...")
11:55, 21 August 2023 Xbl talk contribs created page Diagnostic Messages (Created page with "= dmesg = May be used on most Unix-like operating systems to query th message buffer of the kernel. The output includes messages produced by the device drivers. == Use == <code>dmesg | tail</code> show latest messages == Useful Flags == <code>-D</code> disable printing messages to console <code>-E</code> enable printing messages to console <code>-l <level></code> restrict output to defined level <code>-w</code> print messages and wait for new...")
15:16, 17 March 2023 Xbl talk contribs created page Format and Print Data (Created page with "= printf = Print ARGUMENT(S) according to FORMAT, or execute according to OPTION. <code>printf FORMAT [ARGUMENT]</code> <code>printf OPTION</code> FORMAT controls the output as in C printf. Interpreted sequences are: <code>\n</code> new line <code>%s</code> output as string <code>%d</code> output as integer Example: <code>printf '%s\n' yolo</code>")
15:29, 10 March 2023 Xbl talk contribs created page OpenVPN (Created page with "=== OpenVPN Config === Enable legacy encryption (do not ask for private key password) <code>providers legacy default</code>")
12:48, 27 February 2023 Xbl talk contribs created page IPTables (Created page with "== IPTables == Administration tool for IPv4 packet filtering and NAT == Use == <code>iptables -S</code> show active filters and fail2bans")
15:15, 24 February 2023 Xbl talk contribs created page Journal Control (Created page with "= journalctl = May be used to query the contents of the systemd(1) journal as written by systemd-journald.service(8). == Use == <code>journalctl -xe</code> show last 1000 messages in a pager <code>journalctl -f</code> follow latest messages <code>journalctl -t sshd</code> show messages of a particular service == Useful Flags == <code>-p <priority></code> show messages with $priority and above only <code>-b <priority></code> show messages sinc...")
11:32, 24 February 2023 Xbl talk contribs created page Tunable Filesystem (Created page with "= tune2fs = Adjust tunable filesystem parameters on ext2/ext3/ext4 filesystems == Use == <code>tune2fs -l /dev/XY</code> Show current values of options on /dev/XY <code>tune2fs -m Z /dev/XY</code> Set root reserved block percentage to Z on /dev/XY")
22:08, 3 January 2023 Xbl talk contribs created page Hardening (Created page with "= nginx = === HTTP Config === /etc/nginx/nginx.conf: <code>server_tokens off</code> Stop the server from advertising versions <code>add_header X-Frame-Options SAMEORIGIN always</code> Stop the website to be framed into other websites <code>add_header X-Content-Type-Options nosniff</code> Avoid MIME type sniffing by saying that the MIME types are deliberately configured <code>add_header X-XSS-Protection "1; mode=block"</code> lock pages from loading w...")
16:27, 30 December 2022 Xbl talk contribs created page Global Regular Expression Print (Created page with "= grep = Print lines from text that match patterns, basic regex is used by default == Use == <code>grep /etc/ssh/sshd_config pattern</code> match pattern in /etc/sshd_config, case sensitive == Useful Flags == <code>-E</code> use extended regex <code>-i</code> case insensitive <code>-A x</code> print x lines after matched pattern <code>-B x</code> print x lines before matched pattern <code>-C x</code> print x lines before and after matched...")
16:07, 30 December 2022 Xbl talk contribs created page Find (Created page with "= find = Search for files in a directory hierarchy. The command is recursive by default. == Use == <code>find /var/www -name '*.css'</code> prints full path/filename to all files in /var/www that end in .css <code>-name</code> filename matches string(case sensitive) <code>-iname</code> filename matches string(case insensitive) <code>-regex</code> filename matches regex(case sensitive) <code>-iregex</code> filename matches regex(case insensitive)</b...")
12:57, 2 December 2022 Xbl talk contribs deleted page System and Service Manager (content was: "= systemd = Systemd is a suite of basic building blocks for a Linux system. It provides a system and service manager that runs as PID 1 and starts the rest of the system. == Use == <code>systemctl status <unit></code> show status <code>systemctl start <unit></code> start $unit <code>systemctl stop <unit></code> stop $unit <code>systemctl is-enabled <unit></code...", and the only contributor was "Xbl" (talk))
10:34, 2 December 2022 Xbl talk contribs created page Network Statistics (Created page with "= netstat = Gives an overview of network activities and displays which ports are open or have established connections. The netstat tool is essential for discovering network problems. == Use == <code>netstat</code> show lists of ''active'' connections The first list shows internet connections: '''Proto''' – Protocol of the connection (TCP, UDP) '''Recv-Q''' – Receive queue of bytes received or ready to be received '''Send-Q''' – Send...")
17:00, 30 November 2022 Xbl talk contribs created page Table of Processes (Created page with "= top = Provides a dynamic real-time view of a running system. Load is a complex value, designating the balance between required and available CPU power. Load <1: The system has some idle time Load =1: The system has as much work as it can handle Load >1: The system has to prioritize some processes over others Load >3: The system is probably not fit for the current workload Load >10: The system may have a serious problem Load >30...")
15:19, 30 November 2022 Xbl talk contribs created page Process Control (Created page with "= kill = Sends a signal to a process id. == Use == <code>kill -s <signal> <pid></code> send <signal> (SIGTERM if not defined) to <pid> == Useful Flags == <code>-L</code> display list of signals == Most Important Signals == <code>SIGINT / 2</code> INTERRUPT (Same as Ctrl+c) cancel a running process <code>SIGKILL / 9</code> kills process <code>SIGTERM / 15</code> terminates a program cleanly <code>SIGSTOP / 17</code> stops a running foreground...")
22:31, 28 November 2022 Xbl talk contribs created page Tape Archive (Created page with "= tar = Packs and may compress multiple files a tarball or writes to magnetic tape. == Use (BSD-Style)== <code>tar xf example.tar</code> extract (x) tarball example.tar (f) to . <code>tar cf example.tar</code> create (c) tarball example.tar (f) to . == Useful Flags == <code>t</code> list contents to stdout <code>v</code> verbose output <code>z</code> de-/compress with gzip <code>j</code> de-/compress with bzip")
22:18, 28 November 2022 Xbl talk contribs created page Data Duplicator (Created page with "= dd = Convert and copy a file. Also, write to tape == Use == <code>dd if=<PATH> of=<PATH></code>duplicate infile to outfile == Useful Flags == <code>bs=<BYTES></code> read and write up to BYTES bytes at a time (default: 512) <code>count=<N></code> copy only N input blocks")
22:11, 28 November 2022 Xbl talk contribs created page Magnetic Tape (Created page with "= mt = Controls magnetic tape drives. == Use == <code>mt [-f </dev/st0>] status</code> Show status of <device> == Useful Flags ==")
17:39, 25 November 2022 Xbl talk contribs created page Process Snapshot (Created page with "= ps = Shows running processes and their IDs. == Use == <code>ps</code> show running processes of current user in current terminal <code>ps aux</code> BSD-style, show all running processes (-a) with user column (-u) inside and outside terminals (-x) == Useful Flags == <code>-f</code> show full information <code>-F</code> show fullest information <code>-u <user></code> show processes running from $user <code>-g <group></code> show pr...")
13:01, 25 November 2022 Xbl talk contribs created page System and Service Manager (Created page with "= systemd = Systemd is a suite of basic building blocks for a Linux system. It provides a system and service manager that runs as PID 1 and starts the rest of the system.")
12:43, 25 November 2022 Xbl talk contribs created page Advanced Package Tool (Created page with " = apt = Updates and upgrades installed software. Uses dpkg to install and uninstall. Repos are defined in <code>/etc/apt/sources.list</code>, usually non-free repos are disabled by default. == Use == <code>apt update</code> check for updates <code>apt upgrade</code> install updates <code>apt dist-upgrade</code> install updates and new dependencies, remove old versions <code>apt list --installed </code> list installed packages <code>...")
11:36, 25 November 2022 Xbl talk contribs created page System Control (Created page with "= sysctl = Reads/sets kernel settings from the virtual /proc file system. Values can be edited directly with <code>echo 1/0 >> /proc/net/ipv6/conf/all/disable_ipv6</code> or by editing /etc/sysctl.conf or /etc/sysctl.d/parameter. == setting settings == <code>sysctl -a</code> list all settings <code>sysctl -a | grep net.ipv6.conf.all.disable_ipv6</code> list specific setting <code>sysctl net.ipv6.conf.all.disable_ipv6</code> list specific setting <co...")
15:20, 24 October 2022 Xbl talk contribs created page Network Mapping (Created page with "= nmap = == default options == <code>nmap host-ip</code> scan first 1000 ports on $host-ip == scan specific port == <code>nmap -p x host-ip</code> scan tcp port $x on $host-ip == The Six Port States Recognized by nmap == '''open''' An application is actively accepting TCP connections, UDP datagrams or SCTP associations on this port. Finding these is often the primary goal of port scanning. Security-minded people know that each open port is an ave...")
15:05, 14 October 2022 Xbl talk contribs deleted page Terminal Multiplayer (content was: "= tmux = == navigating == <code>Ctr-b leftarrow</code> move active window horizontally <code>Ctr-b rightarrow</code> move active window horizontally <code>Ctr-b uparrow</code> move active window vertically <code>Ctr-b downarrow</code> move active window vertically == listing, creating, renaming, killing == <code>tmux ls</code> list sessions <code>tmux kill -t se...", and the only contributor was "Xbl" (talk))
15:05, 14 October 2022 Xbl talk contribs created page Terminal Multiplexer (Created page with "= tmux = == navigating == <code>Ctr-b leftarrow</code> move active window horizontally <code>Ctr-b rightarrow</code> move active window horizontally <code>Ctr-b uparrow</code> move active window vertically <code>Ctr-b downarrow</code> move active window vertically == listing, creating, renaming, killing == <code>tmux ls</code> list sessions <code>tmux kill -t sessionname</code> kill tmux session with name $sessionname <code>tmux new -s ses...")
21:10, 12 October 2022 Xbl talk contribs created page Terminal Multiplayer (Created page with "= tmux = == navigating == leftarrow : move active window horizontally rightarrow : move active window horizontally uparrow : move active window vertically downarrow : move active window vertically == creating, renaming, deleting == tmux new -s sessionname : create tmux session with name $sessionname tmux rename -t sessionname newname : rename session to $newname tmux attach -t sessionname : attach to $sessionname tmux ls : list sessio...")
16:54, 7 May 2022 Xbl talk contribs created page SELinux (Created page with "= SELinux = == Available Commands == === Mode Management === <code>sestatus</code> show runtime status and boolean values (-b) <code>getenforce</code> show current mode of operation <code>setenforce</code> switch operating mode temporarily === Context Management === <code>chcon</code> change file contexts (does not survive file system relabeling) <code>restorecon</code> restore default file contexts, referencing /etc/selinux/targeted/contexts/fil...")
22:04, 5 May 2022 Xbl talk contribs created page Firewall (Created page with "= firewall-cmd = == Available Commands == === General === <code>--state</code> display the status <code>--reload</code> reload firewall rules from zone files, all runtime changes are lost <code>--permanent</code> store a change persistently === Zones === <code>--get-default-zone</code> show the name of the default/active zone <code>--set-default-zone</code> set the name of the default zone, always permanent <code>--get-zones</code> show ava...")
21:58, 2 May 2022 Xbl talk contribs created page Network Devices and Connections (Created page with "= Manual Configuration = Create file in /etc/sysconfig/network-scripts/ifcfg-ifname Populate file with: <code>TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no BOOTPROTO=static [dhcp, none] DEFROUTE=yes IPV4_FAILURE_FATAL=no UUID=sd55sd-sdfss5li-lkjawq NAME=ens256 ONBOOT=yes IPADDR=192.168.1.11 NETMASK=255.255.255.0 GATEWAY=192.168.1.1 DNS1=192.168.1.53</code> = nmcli = == Available Commands == === O...")
14:47, 29 March 2022 Xbl talk contribs created page GRUB2 (Created page with "= Reset Root Password = 1. enter GRUB2 edit mode 2. modify linux-kernel string by adding <code>rd.break</code> at the end 3. press CTRL+x to boot with entered options 4. use chroot to mount /sysroot to / <code>chroot /sysroot</code>, pwd should read <code>/</code> 5. remount the root file system in read/write mode <code>mount -o remount,rw /</code> 6. run passwd to set new password <code>passwd</code> 7. create hidden file .autorelabel to run SELinux relabeling on...")
08:34, 28 March 2022 Xbl talk contribs created page Bash Shell (Created page with "= CTRL Hotkeys = CTRL + a move to beginning CTRL + d escape current shell or delete character under cursor CTRL + e move to end CTRL + k delete all from cursor to end CTRL + l clear CTRL + n down arrow CTRL + p up arrow CTRL + q resume output CTRL + r backward search CTRL + s stop output CTRL + t switch character before cursor with cursor, ESC + t switches two words before the cursor CTRL + u cut lin...")
23:08, 22 March 2022 Xbl talk contribs created page Redhat Package Manager (Created page with "= rpm - query options = -q, --query ''package'' display package -qa, --query --all list all installed packages -qc, --query --configfiles ''package'' list config files in a package -qd, --query --docfiles ''package'' list documentation files in a package -qf, --query --file ''file'' display what package a file comes from -qi, --query --info ''package'' display installed package information -qip, --query --info --package ''package''</b...")
12:37, 16 March 2022 Xbl talk contribs moved page /vim to Vi IMproved without leaving a redirect
12:35, 16 March 2022 Xbl talk contribs moved page /dwm to Dynamic Window Manager without leaving a redirect
12:35, 16 March 2022 Xbl talk contribs moved page Regex to Regular Expressions without leaving a redirect
12:34, 16 March 2022 Xbl talk contribs deleted page /lvm (content was: "= lvm = == extend disk == 1. add new hard disk 2. take note of current /dev/sdx 3. scan for new devices: <code>sudo /sbin/rescan-scsi-bus -w</code> Result: new device found 4. enter lvm as root: <code>sudo lvm</code> 5. create physical volume: <code>pvcreate /dev/sdy</code> 6. check volume groups: <code>vgs</code> 7. extend volume group: <code>vgextend volume-name /dev/sdy</...", and the only contributor was "Xbl" (talk))
12:33, 16 March 2022 Xbl talk contribs created page Logical Volume Management (Created page with "= lvm = == extend disk == 1. add new hard disk 2. take note of current /dev/sdx 3. scan for new devices: <code>sudo /sbin/rescan-scsi-bus -w</code> Result: new device found 4. enter lvm as root: <code>sudo lvm</code> 5. create physical volume: <code>pvcreate /dev/sdy</code> 6. check volume groups: <code>vgs</code> 7. extend volume group: <code>vgextend volume-name /dev/sdy</code> 8. check logical volumes: <code>lvs</code> 9. resize logical volume: <code>l...")
12:14, 16 March 2022 Xbl talk contribs created page /lvm (Created page with "= lvm = == extend disk == 1. add new hard disk 2. take note of current /dev/sdx 3. scan for new devices: <code>sudo /sbin/rescan-scsi-bus -w</code> Result: new device found 4. enter lvm as root: <code>sudo lvm</code> 5. create physical volume: <code>pvcreate /dev/sdy</code> 6. check volume groups: <code>vgs</code> 7. extend volume group: <code>vgextend volume-name /dev/sdy</code> 8. check logical volumes: <code>lvs</code> 9. resize logical volume: <code>l...")
16:42, 11 March 2022 Lea talk contribs created page Raw (Created page with "Zigifilter vo RAW sind scheisse. D'Papes sind geil.")
18:31, 8 March 2022 Xbl talk contribs created page /vim (Created page with "= vim = == inserting == i : insert text before the current position I : insert text at the beginning of current line a : append text after the current position A : append text to the end of current line o : open new line below current line O : open new line above current line == navigating == h : move back one character j : move down one line k : move up one line l : move forward one character w : move to start of next...")
14:24, 25 February 2022 Xbl talk contribs created page Regex (Created page with "== Regular Expressions == {| class="wikitable" |- ! Metacharacter ! Description |- valign="top" !<code>\</code> |Escape character. |- |- valign="top" !<code>?</code> |Matches the preceding element zero or one time. For example, <code>ab?c</code> matches only "ac" or "abc". |- !<code>+</code> |Matches the preceding element one or more times. For example, <code>ab+c</code> matches "abc", "abbc", "abbbc", and so on, but not "ac". |- !<code><nowiki>|</nowiki></code> |The ch...")
23:01, 22 February 2022 Xbl talk contribs created page Mediawiki Cheatsheet (Created page with "== Mediawiki Cheatsheet == {| style="border:none; text-align:left; background:#f0f0f0; font-size: 95%;" |- | width="25%" style="background: #e4e4e4; padding: 3px 5px; text-align:center;"|'''Description''' | style="background: #e4e4e4; padding: 3px 5px; text-align:center;"|'''You type''' | width="25%" style="background: #e4e4e4; padding: 3px 5px; text-align:center;"|'''You get''' |- | colspan="3" style="background: #e4e4e4; padding: 3px 5px; font-family: sans-serif; fo...")
22:58, 22 February 2022 Xbl talk contribs created page /dwm (Created page with "== Hotkeys == ;Navigation :to workspace ::win+{num} :to next/previous monitor ::win+, ::win+. :rotate clockwise ::win+j :rotate counterclockwise ::win+k :Zoom ::win+v ;Move windows :to workspace ::win+shift+{num} :to next/previous monitor ::win+shift+, ::win+shift+.")
22:23, 17 February 2022 Xbl talk contribs created page Basic Commands (Created page with "=ls= -a, --all do not ignore entries starting with . -h, --human-readable with -l and -s, print sizes like 1K 234M 2G etc -l use a long listing format -r, --reverse reverse order while sorting -t sort by time, newest first")
12:11, 15 February 2022 Lea talk contribs created page Talk:Main Page (Created page with "Die Textilmotte - Ein Erinnerungsprotokoll Die Textilmotte gehört zur Familie der Schmetterlinge. Ihren Namen hat sich die Textilmotte (viele Menschen sprechen auch von den sogenannten „Kleidermotten“) durch ihre bevorzugte Nahrungsquelle gemacht. Die Larven der Textilmotten ernähren sich nämlich von Kleidern, weil daran oft Hautschuppen hängen. Diese stellen eine wichtige Proteinquelle für die Baby-Schmetterlinge dar. Ausserdem mögen die Baby-Schmetterlinge w...")
00:26, 15 February 2022 Lea talk contribs changed group membership for Lea from bureaucrat to (none)
00:17, 15 February 2022 Xbl talk contribs changed group membership for Lea from (none) to bureaucrat
00:12, 15 February 2022 User account Lea talk contribs was created by Xbl talk contribs (<3)
00:05, 15 February 2022 Xbl talk contribs created page Test (Test)
21:57, 14 February 2022 MediaWiki default talk contribs created page Main Page

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