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computing:sysadmin [2018/05/20 00:42] – oemb1905computing:sysadmin [2019/08/07 04:07] – oemb1905
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- /   |   \_____  _____    ____ |  | _)/ ______  \      \   _____/  |___  _  _____________|  | _|__| ____    ____ 
-/    ~    \__  \ \__  \ _/ ___\|  |/ / /  ___/  /   |   \_/ __ \   __\ \/ \/ /  _ \_  __ \  |/ /  |/    \  / ___\ 
-\    Y    // __ \_/ __ \\  \___|    <  \___ \  /    |    \  ___/|  |  \     (  <_> )  | \/    <|  |   |  \/ /_/  > 
- \___|_  /(____  (____  /\___  >__|_ \/____  > \____|__  /\___  >__|   \/\_/ \____/|__|  |__|_ \__|___|  /\___  / 
-       \/      \/     \/     \/     \/     \/          \/     \/                              \/       \//_____/ 
- 
-              Welcome to Haack's Networking.  Email netcmnd@jonathanhaack.com for more information. 
- 
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 ------------------------------------------- -------------------------------------------
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 ------------------------------------------- -------------------------------------------
  
-//Welcome to my gnulinux wiki page.  Tis page has simple and complex system administrationnotes to remind me when I forget something that I already learned!  If you are visiting, I hope you find the page useful.//+A dumping ground for basic gnulinux sysadmin and other nix solutions ...
  
-------------------------------------------- 
-#**install latest firefox on debian** 
 ------------------------------------------- -------------------------------------------
  
-To install the latest firefox on Debian and make it default, do the following.  The link below may not always work, so replace when updated.+-Text Editors- 
 + 
 +Change the default text editor, terminal, web browser, in Debian 
 + 
 +  exo-preferred-applications 
 + 
 +Some systems are not kind with exo, so ... 
 + 
 +  xdg-mime default caja.desktop inode/directory application/x-gnome-saved-search 
 +   
 +Set caja or other file managers to manage desktop 
 + 
 +  gsettings set org.gnome.desktop.background show-desktop-icons false 
 +  gsettings set org.nemo.desktop show-desktop-icons true 
 + 
 + 
 +-motd- 
 + 
 +Create the following to make a message of the day that will be appended to the dynamic message of the day. 
 + 
 +  sudo nano /etc/motd 
 + 
 +Is motd printing twice, comment out motd statis in pam setting 
 + 
 +  /etc/pam.d/sshd 
 +  #session    optional     pam_motd.so noupdate 
 +  (actually it is the line above this, leave this active) 
 +   
 +Print motd with every shell log in ... 
 + 
 +  nano ~/.bashrc 
 +   
 +Navigate to the end of the file, and add 
 +   
 +  cat /etc/motd
    
-  sudo mkdir /opt/firefox+  
 +-Firefox- 
 + 
 +To install the latest firefox on Debian and make it default, do the following.  The link below may not always work, so replace when updated. 
 + 
 + 
 +  sudo mkdir -p /opt/firefox
   sudo chown -R $USER:$USER /opt/firefox   sudo chown -R $USER:$USER /opt/firefox
-  tar xjf FirefoxSetup.tar.bz2 -C /opt/firefox/ 
-  mv /usr/lib/firefox-esr/firefox-esr /usr/lib/firefox-esr/firefox-esr_orig 
-  ln -s /opt/firefox/firefox/firefox /usr/lib/firefox-esr/firefox-esr 
   cd ~/Downloads && wget -O FirefoxSetup.tar.bz2 "https://download.mozilla.org/?product=firefox-latest&os=linux64&lang=en-US"   cd ~/Downloads && wget -O FirefoxSetup.tar.bz2 "https://download.mozilla.org/?product=firefox-latest&os=linux64&lang=en-US"
   tar xjf FirefoxSetup.tar.bz2 -C /opt/firefox/   tar xjf FirefoxSetup.tar.bz2 -C /opt/firefox/
 +  sudo mv /usr/lib/firefox-esr/firefox-esr /usr/lib/firefox-esr/firefox-esr_orig
 +  sudo ln -s /opt/firefox/firefox/firefox /usr/lib/firefox-esr/firefox-esr
  
 To restore firefox-esr that comes with Debian. To restore firefox-esr that comes with Debian.
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-------------------------------------------- +-optical ripping-
-#**optical media ripping from command line** +
--------------------------------------------+
  
   cdrecord -pad -dao -data blag-140k-i686.iso   cdrecord -pad -dao -data blag-140k-i686.iso
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-------------------------------------------- +-pam garbage-
-#**security & policy information** +
--------------------------------------------+
  
   sudo nano /etc/pam.d/common-password   sudo nano /etc/pam.d/common-password
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   /etc/nologin   /etc/nologin
  
 +-old reminders-
  
-------------------------------------------- +remove old and offending keyring from gnome, make new directory for new one 
-#**miscellaneous sysadmin easy** + 
--------------------------------------------+  sudo rm -rf ~/.local/share/keyrings 
 +  mkdir ~/.local/share/keyrings
  
 start or stop network manager (or other services) start or stop network manager (or other services)
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-------------------------------------------- +-ngrok-
-#**scripts and miscellaneous** +
-------------------------------------------- +
- +
-downloading scripts and executing them; example from DO +
- +
-  curl -sSL https://agent.digitalocean.com/install.sh | sh+
  
 ngrok notes; private http(s) tunnels ngrok notes; private http(s) tunnels
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   [main contrib non-free]   [main contrib non-free]
      
-Uploading files to remote webservers with sftp+   
 +-sftp basics-
  
   cd ~/Downloads   cd ~/Downloads
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   > put /path/to/file.txt    > put /path/to/file.txt 
      
- +   
- +-build app from source-
- +
- +
-------------------------------------------- +
-#**Building From Source to Custom library Location** +
--------------------------------------------+
  
 tar -xf <source_filename> tar -xf <source_filename>
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 +-using vi to scrape unnecessary text strings away from openwrt packages that need updating
  
-------------------------------------------- +  :1,$s/ .*//
-#**next topic** +
--------------------------------------------+
  
  
- --- //[[netcmnd@jonathanhaack.com|oemb1905]] 2018/05/19 14:17//+-passing traffic through wifi radio to another interface on host- 
 + 
 +  sudo su -c "iptables -t nat -A POSTROUTING -o wlp2s0 -j MASQUERADE" 
 +  sudo su -c "echo 1 > /proc/sys/net/ipv4/ip_forward" 
 + 
 +  set a static ip using ip a a x.x.x.x. dev blah 
 + 
 +  set static on wndr wan 
 + 
 +-exim delete all messages- 
 +   
 +  exim -bp <print message ids> 
 +  exim -Mrm <message id> 
 +  exim -bp | awk '/^ *[0-9]+[mhd]/{print "exim -Mrm " $3}' | bash 
 +   
 + 
 + --- //[[oemb1905@jonathanhaack.com|oemb1905]] 2019/07/29 19:14//

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