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--- computing:sysadmin [2018/05/18 08:06] – created oemb1905
+++ computing:sysadmin [2019/08/07 04:07] – oemb1905
@@ Line 1: / Line 1: @@
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-  * **sysadmintt**
+  * **sysadmin**
   * **Jonathan Haack**
   * **Haack's Networking**
@@ Line 7: / Line 8: @@
 -------------------------------------------
-//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 ...
--------------------------------------------
-#**optical media ripping from command line**
 -------------------------------------------
-  cdrecord -pad -dao -data blag-140k-i686.iso
+-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
-#**security & policy information**
+  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
+-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
+  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/
+  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.
+  unlink /usr/lib/firefox-esr/firefox-esr
+  mv /usr/lib/firefox-esr/firefox-esr_orig /usr/lib/firefox-esr/firefox-esr
+-optical ripping-
+  cdrecord -pad -dao -data blag-140k-i686.iso
+-pam garbage-
   sudo nano /etc/pam.d/common-password
@@ Line 30: / Line 81: @@
   /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)
@@ Line 77: / Line 130: @@
--------------------------------------------
+-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
@@ Line 107: / Line 154: @@
   [main contrib non-free]
-Uploading files to remote webservers with sftp
+-sftp basics-
   cd ~/Downloads
@@ Line 113: / Line 161: @@
   > put /path/to/file.txt
+-build app from source-
--------------------------------------------
-#**Building From Source to Custom library Location**
--------------------------------------------
 tar -xf <source_filename>
@@ Line 131: / Line 174: @@
+-using vi to scrape unnecessary text strings away from openwrt packages that need updating
--------------------------------------------
+  :1,$s/ .*//
-#**next topic**
--------------------------------------------
+-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
- --- //[[netcmnd@jonathanhaack.com|oemb1905]] 2018/03/15 00:23//
+ --- //[[oemb1905@jonathanhaack.com|oemb1905]] 2019/07/29 19:14//

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