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List of IP Address Management tools (IPAM) and DNS DHCP IPAM (DDI) List of IPAM at Wikipedia commercial * QIP * Infoblox http://www.infoblox.de/de/product...

PXE Install FreeBSD on Soekris net5501 dhcp tftp zfs create o mountpoint=/tftpboot zroot/tftpboot sed i '/^#tftp /s/^#//' /etc/inetd.conf /etc/rc.conf: inetd_...

A v a d a c r a c k work in progress 1 open wp content/themes/Avada/includes/lib/inc/class fusion envato api.php 2 remove $response_code ...

Utilities * AwK * sed * HereDocuments * http://code.google.com/p/shellinabox/ * NmaP * RcFiles * fgres a search and replace tool * search a...

Quick how to RancherOS and Rancher Waschzettel / blurb RancherOS is a very dockercentric linux OS. 1 boot iso 1 sudo passwd rancher 1 ssh rancher@ 1 ...

(This is a Wiki, feel free to add or edit content; you just need to register.) This is disabled at the moment cause of maintainance, but will be enabled soon. Tag...

How to start a very simple webserver with buildin tools /usr/bin/python m SimpleHTTPServer 8000

Mac OS X * OSXSecuritY * OSXdmg2Iso * OSXchangeSshPort * OSXCalDAV * OSXBackupOpenDirectory * OSXeToken * OSXGPGKeychainCrash * OSXKeyboar...

Zero Trust Model Instead of traditional methods such as VPNs and login credentials to establish trust and verify identity, Google relies on a “tiered access” mode...

Security Models * castle, perimeter, wall, inside, outside * ZeroTrust, Kerberos, BeyondCorp, perimeter less

Security $ "A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away.": Antoine de Saint Ex...

VirtualBoxGuest

Mac OS X Security * Using YubiKey as Smart Card * Smart Card only login * Serveral Login Features

xargs find . name "*.flac" xargs file xargs: unterminated quote find . name "*.flac" print0 xargs 0 file The print0 argument tells find to use the NULL c...

tcpdump tcpdump filter to match DHCP packets including a specific Client MAC Address: tcpdump i eth3 vvv s 1500 '((port 67 or port 68) and (udp 38:4 = 0x00cac...

Copyright This sysadmin.wiki by the contributing authors is licensed under a Creative Commons Attribution 4.0 Unported License.Permissions beyond the scope of thi...

No active remote repositories configured * https://stackoverflow.com/questions/40080493/no active remote repositories configured

Sysadmin FreeBSD * FreeBSDAfterboot * FreeBSDexpl * SerialWithPcenginesAPU * jails * BootEnvironmentsOnFreeBSD * StaticLinkedPackages * Follo...

Remove the schg flag Use chflags(1) to remove the schg flag. Some files of the base OS are protected by this flag. chflags R noschg /usr/bin

Wireless LAN (WLAN) Grundlagen zu Wireless LAN, Standards, Sicherheit, Technik, FAQ sowie alle Chipsätze und deren Treiber. Neben der Geschichte, Tips und HowTos...

GPIO on a Banana Pi M1 with FreeBSD $ Is there any GPIO on the hardware: dmesg grep gpio $ List available GPIO pins: gpioctl lv or gpioctl f /dev/gpioc1...

use GPIO with FReeBSD * BananaPiM1

ntpd build options working build options for BeagleBone Black with Linux beaglebone 3.8.13 bone70 ./configure ' prefix=/opt/ntp' ' enable all clocks' ' enable ...

Raspberry with a gps clock and a etc RTC * apt get install i2c tools * cat /etc/modules pps gpio * modprobe i2c bcm2708 * modprobe rtc ds1307 ...

Antenna cables * GPSANT https://www.meinberg.de/german/products/gps antenne konverter.htm * handelsüblichem Koaxialkabel (z.B. RG58) = 300m * Koaxi...

Timeserver with ntp WORK IN PROGRESS * EnterpriseTimeServer * EasyDistributeAndBalanceWithPool * NtpLeapsecondFile * NtpVsPtp * MeinbergNtpConfig ...

Network Services * DhcpD * BinD9 * ProXy * NodeJs * IpAM IP Address Management or DDI if you integrate IpAM with DhcpD and BinD9 * NtP

GPS head for raspberry pi form Florian Täger Kurz noch ein paar Hilfreiche Details: Das PPS Signal liegt an GPIO 23 an. Auf GPIO 24 liegt das FIX Signal. LED1 hä...

Format a USB stick with ufs * gpart show * gpart destroy F da0 * gpart create s gpt da0 * gpart add t freebsd ufs da0 * newfs /dev/da0p1 * mo...

reset password boot dka100.1.0.6.1 flags 0,1 System will be reset prior to boot. OpenVMS PALcode V1.88 27, Digital UNIX PALcode V1.83 22 FF.FE.FD.FC.FB.FA.F9....

OpenVMS * ResetPassword

FritzFon C5 and SpeedPort Hybrid Anmeldung an Basis 1, 2, 3 oder 4 gescheitert Registration to SpeedPort failed. * Login Menü Telefonie DECT Basisstation...

Fritzbox * Enable telnet * FritzFon C5 mit SpeedPort Hybrid Anmeldung an Basis 1, 2, 3 oder 4 gescheitert

Was muss man beim Aufbau eines Wireless LAN beachten? Generell ist es so, daß man ein FunkLAN testen muss theoretisch berechnen lässtsich eine Funkzelle kaum. A...

jekyll A static website generator. Create a new projekt jekyll new projektname Replace default template (minima) with your own template rm about.md index.md and...

Mac OS X Gatekeeper security sudo spctl master disable sudo spctl master enable sudo xattr rd com.apple.quarantine /Applications/LockedApp.app

How to put a FreeBSD laptop into sleepmode, suspend as root acpiconf s 3

Follow the quarterly or latest packages In file /etc/pkg/FreeBSD.conf use url: "pkg http://pkg.FreeBSD.org/${ABI}/latest", or url: "pkg http://pkg.FreeBSD.org...

FreeBSD Afterboot sshd.conf within bsdinstall shell! ssh ssh port allow root Some common best practice files create ~/CHANGES # logfile for every major...

X11 / xorg on FreeBSD * GermanKeyboard * SequenceToKillTheXserver * CorrectResolutioninVirtualBox * https://forums.freebsd.org/threads/various progra...

sequence to kill the X server Terminating Xorg with Ctrl Alt Backspace cat /usr/local/etc/X11/xorg.conf.d/keyboard zap.conf

German keyboard on Xorg cat /usr/local/etc/X11/xorg.conf.d/keyboard de.conf in my case FreeBSD as guest in VirtualBox on a Lenovo Thinkpad T460s

add user via batchfile adduser f user.list G wheel w no piest:2001:::::Stephan :: engk:2002:::::Engel:: grea:2003:::::Andreas:: tihar:2004:::::Tim:: seej:2005:...

!/bin/sh #export http_proxy=http://10.133.65.201:3128/ #export HTTP_PROXY=http://10.133.65.201:3128/ NTPBINURL=http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp 4...

Ubuntu bind is compiled with built with ' prefix=/usr' ' mandir=/usr/share/man' ' infodir=/usr/share/info' ' sysconfdir=/etc/bind' ' localstatedir=/var' ' enable ...

ISC bind 9 * LogginG * CachingOnly (proxy i.e. forwarder) * DetectDomainGenerationAlgorithm * InternalRootServer * QueryBindVersion * DNSControl...

# bind soll konfig neu laden rndc reload # virtuelle Fenster aufmachen screen CTRL A A zusaetzliches Fenster aufmachen CTRL A SPACE zwischen den Fenstern wechseln...

Unsorted examples * UbuntuExpl

Miscellaneous * ResetProximAP4000 How to reset an old access point * Fun A bit more complex 'hello world' in EVERY programming language you never heard of ...