UbuntuHowTo < CF

CF Web>Linux>UbuntuInCS>UbuntuHowTo (2019-10-25, AdrianPepper) (raw view)

---+ Ubuntu How To
<!-- These are intended for user-level Q&A -->

Questions and answers about how to accomplish various tasks in the CSCF standard Ubuntu image.

See Also: DebianHowTo

%TOC%

---++ General environment
---+++ Q: How do I become root?
A: You don't.  See BasicAdminTasks#Become_root.

Q2: But I really want to...

A2; use =sudo -s= to get root privileges (but you're still "you"), then use =su - root=  You will now *be* root. 

---+++ Q: How do I find out what version of Ubuntu I have running?
A:  =lsb_release -d=

---+++ Q: How do I create a tar file containing files owned by other userids?
A: See UbuntuFakeroot

---+++ Q: Tricks and Tips for dpkg/apt[-get] ?
A: See UbuntuDpkgApt

---++ Performance
   * [[UbuntuKernelTuning][Ubuntu/Linux kernel tuning in general]]
   * [[DiskScheduler][Disk scheduler optimization]] 
---++ Networking
---+++ Q: How do I fix ssh to connect to Solaris machines quickly
A: add the following to the aliases section in .bashrc
      * =alias ssh='ssh -X'=

---+++ Q: How do I mount my CS core home directory?
A: there are a probably a couple of ways, but here's one suggestion, using [[http://fuse.sourceforge.net/sshfs.html][sshfs]]
   * sudo apt-get install sshfs
   * $ sshfs core.cs: mountpoint   (where "mountpoint" is wherever you want your CS core home directory mounted locally)
   * If that fails (as it originally did in my case), you may need to do the following
      * sudo chmod o+x /usr/bin/fusermount
      * sudo modprobe fuse
      * sudo chmod o+rw /dev/fuse
   * Note: you will probably need to do something to have this happen automatically after a reboot
   * For further notes on sshfs, see: [[SshFs]]

---+++ Q: How do I make ethernet work again after Ubuntu image restores
A: See UbuntuUdevHacks

---++ Desktop environment
---+++ Q: How do I add shortcuts on the Panel
   * eg: adding the Terminal Icon to the Panel:
      * Applications -> Accessories
      * right-click on Terminal
      * Choose "Add this launcher to panel"
---+++ Q: How do I add a Launcher that opens a Folder or File
A: Folder Example
   * Right Click on Taskbar -> Add to Panel -> Custom Application Launcher -> +Add
      * Type: Location
      * Name: Title - example name of folder
      * Command: file:///home/userid/myfolder
      * Comment: can be same as Name
      * ICON: change to suite
---+++ Q. How do I set up my screen to auto-lock after 10 minutes of idle time?
   * System -> Preferences - Screensaver (2nd one!)
   * check "Lock screen when Screen saver is active" 

---++ Thunderbird Configuration
---+++ Assign a Signature
   1 create a text file with your signature text
   1 Tools -> Account Settings... -> (on main Account Settings tab) "[x] Attach this signature" -> browse to signature text file
---+++ Put a timestamp in your message replies:
   1 http://www.mozilla.org/support/thunderbird/tips#beh_replyheader
      * Note that it mentions putting the indicated code in your =user.js= file.  By default, this doesn't exist.  Create it in the same directory as =prefs.js= then add the code.  You should be able to find your =prefs.js= file in =~/.mozilla-thunderbird/default/???.slt=

Topic revision: r18 - 2019-10-25 - AdrianPepper

Information in this area is meant for use by CSCF staff and is not official documentation, but anybody who is interested is welcome to use it if they find it useful.

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