Skip to content

Latest commit

 

History

History
203 lines (190 loc) · 7.58 KB

README.md

File metadata and controls

203 lines (190 loc) · 7.58 KB
Raw

MacOS

Table of content



nano  /Library/Application\ Support/CrashReporter/SubmitDiagInfo.config
  • Path to startup items: /Library/LaunchDaemons/
  • Let the computer print every prime number with 'dc'😂
echo '2p3p[dl!d2+s!%0=@l!l^!<#]s#[s/0ds^]s@[p]s&[ddvs^3s!l#x0<&2+l.x]ds.x' | dc
  • Tips and Tricks
shift+command+3           #take screenshot of entire screen
shift+command+4           #select area with the mouse to take a screenshot
shift+command+5           #select area with the mouse, press enter to start recording
shift+command+6           #screenshot the touchbar

Security

Antivirus

  • Clamav Antivirus
brew install clamav
brew ls clamav |grep clamd                                                        #locate clamd daemon
sudo cp /usr/local/etc/clamav/freshclam.conf.sample /etc/clamav/freshclam.conf
sudo cp /usr/local/etc/clamav/clamd.conf.sample /etc/clamav/clamd.conf
sudo nano /etc/clamav/freshclam.conf                                              #edit config file
sudo freshclam -v
clamscan /tmp --infected                                                          #scan and only list infected files
  • Fail2ban
    • Config file: /usr/local/etc/fail2ban
brew install fail2ban
brew services restart fail2ban
  • Password Generation
    • Command to created 50 random small passwords:
i=1
while [ $i -le 50 ]
do
  head -c 10 /dev/random | shasum -a 256 | head -c 8
  echo ""
  ((i++))
done

Productivity

caffeinate                 # stop computer from going to sleep infintine
caffeinate -u -t 3600      # stops computer from going to sleep for 1 hour
cat myfile | pbcopy        # copies content to clipboard :D
qlmanage -p myfile         # quick preview of 'myfile'
  • Barrier - Open-source KVM software - Troubleshooting
    • Problem with SSL such as: invalid ssl routines pem lib. Try clicking at the menu bar "Change Settings" and disable/enable SSL -> Reload and start source.
    • To create certificates yourself
     cd  /Users/henrik/Library/Application\ Support/barrier/SSL && \
 openssl req -x509 -nodes -days 365 -subj /CN=Barrier -newkey rsa:4096 -keyout Barrier.pem -out Barrier.pem
 #restart the app and click start
    • On the client: Mark "Client (use another computer's...)" and enter the server IP and click "Start". If it's not working, ping between the IPs and check with "tcpdump port 24800" on botch machines.

Networking

sudo airportd en0 info
sudo airportd en0 sniff 1
sudo airportd scan                                   #scans for WiFi networks and prints results. Requires sudo.
sudo netstat -ap tcp
sudo netstat -anvp tcp | awk 'NR<3 || /LISTEN/'      #shows sweet list of listening ports
sudo lsof -PiTCP -sTCP:LISTEN
sudo lsof -Pn -i4
sudo lsof -Pn -i4 | grep LISTEN
sudo tcpdump -Ii en0
  • DNS
sudo lsof -iTCP:53 -iUDP:53 -n              # make sure mDNSRespo is running
  • Clear the DNS cache
dscacheutil -flushcache
sudo killall -HUP mDNSResponder;sudo killall mDNSResponderHelper;sudo dscacheutil -flushcache
  • Proxychains-ng Installation
brew install proxychains-ng       #config: /usr/local/etc/proxychains.conf
proxychains4 curl ifconfig.me
proxychains4 ssh@server.com
proxychains4 nmap ip

Be aware: Sometimes you may encounter no IP change, e.g.

proxychains4 curl ifconfig.me
[proxychains] config file found: /usr/local/etc/proxychains.conf
[proxychains] preloading /usr/local/Cellar/proxychains-ng/4.14/lib/libproxychains4.dylib
(PUBLIC-IP-HERE)

By copying the executable to another location, we resolve this. E.g. cp /usr/local/bin/wget /tmp/ Then run:

proxychains4 /tmp/wget https://google.com

System Maintenance

  • Change Hostname
sudo scutil --set HostName <new host name>
sudo scutil --set LocalHostName <new host name>
sudo scutil --set ComputerName <new name>
dscacheutil -flushcache
reboot
softwareupdate --all --install --force

Disk

sudo dd if=~/Downloads/Ubuntu20.04.iso of=/dev/disk5 bs=1m
sudo dd if=/dev/disk2s7 bs=4096 | pv -s 28G | sudo dd of=raspbery.img bs=4096    #brew install pv
diskutil list
diskutil eject /dev/disk5
diskutil eraseDisk exFAT MyUSBName /dev/disk4
diskutil eraseDisk JHFS+ CleanDrive /dev/disk1
diskutil unmount /dev/disk4

Files and Folders

  • Hiding files and folders
hflags hidden my-folder       #hides "my-folder"
chflags nohidden my-folder    #unhides "my-folder"
brew install locate                                                           #installs locate for locating files
sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.locate.plist   #creating a db for locate
locate TorBrowser                                                             #locates anything that matches "TorBrowser"

Packages

  • Brew Package Manager
brew install cask                # deals with Graphical User Interface (GUI) 
brew update                      # fetch the newest version of Homebrew and all formulae from GitHub using git(1) and perform any necessary migrations.
brew outdated                     # list installed casks and formulae that have an updated version available.
brew upgrade                      # upgrade outdated casks and outdated, unpinned formulae using the same options they were originally installed with, plus any appended brew formula options.
brew upgrade [package name]       # upgrade specific package
brew search [package name]        # searches for package
brew install tor                  # installs package tor
brew cask uninstall tor           # uninstalls tor
brew cleanup
brew info tor                     # lists info about the tor package
brew services list                # list services
brew services start tor           # start tor service
brew services restart tor         # restart tor service

Peripherals

  • Listing out:
ioreg -p IOUSB -l -w 0      #listing devices

Processess

Key/Command Description
killall java Kill all java
ps axu grep "/bin/tor"
sudo fuser 8080/tcp Show all process on port 8080
sudo fuser -k 8080/tcp Kill that process

Services

  • Launchctl
sudo launchctl list                         # lists all macOS services
sudo launchctl list | grep service          # lists services named 'service'
sudo launchctl list | grep tor              # lists services named 'tor'