Differences

This shows you the differences between two versions of the page.

--- computers:ubuntu_workstation_basic_setup [2015/03/06 12:07] – chkuo
+++ computers:ubuntu_workstation_basic_setup [2023/03/06 16:50] (current) – [Java] hcyen
@@ Line 4: / Line 4: @@
 ==== BIOS ====
   * before installing Ubuntu, power on the workstation, enter the BIOS setting, and update the boot setting. CD/DVD-ROM should be listed as the 1st choice, following by the hard drive for Ubuntu installation
+==== Ubuntu ====
+   * Use the latest long-term support (LTS) version
+   * Install the system on the smaller/faster SSD; use the larger/slower HDD for '/backup' and/or '/scratch'
+==== SSH ====
+  * Install the OpenSSH server
+    * The OpenSSH client is installed by default (so you can ssh into other computers). The OpenSSH server is required for connection into this machine (e.g., auto backup from the lab server). Use ''sudo apt-get install openssh-server'' to install.
+  * SSH security
+     * Once the OpenSSH server is installed, it is important to increase the security
+     * see more info here: [[computers:ssh_security|SSH security]]
+     * Minimally, update the ''/etc/hosts.deny'' and ''/etc/hosts.allow'' files to allow only the IPs that should have access
+     * Install Fail2ban: ''sudo apt-get install fail2ban''
@@ Line 13: / Line 27: @@
-==== Ubuntu v14.04 (2015/01/07) ====
+==== Nvidia drivers ====
-   * Basic installation
-     * Put the Ubuntu14.04 DVD into the DVD-drive.
-     * Restart the computer and boot the computer through that DVD.
-     * Follow the instruction to install Ubuntu.
-     * hard drive partition:
-       * use the SSD as the primary hard drive
-         * SWAP >= the size of RAM
-         * the remaining part could be mounted as root ('/') and used for OS installation
-       * the larger/slower hard drive could be mounted as '/backup'
-  * Additional steps
-     * Install the OpenSSH server
-       * The OpenSSH client is installed by default (so you can ssh into other computers). If you want connect to this new machine from other machines (e.g., other workstations, lab server, home computer), the OpenSSH server package is required.
-       * sudo apt-get install openssh-server
-===== Nvidia drivers =====
   * official drivers of nvidia graphic card (gnu) is required for better performance.
   * check nvidia graphic card information
@@ Line 52: / Line 51: @@
   * [[http://manpages.ubuntu.com/manpages/precise/en/man1/alt-nvidia-current-settings.1.html|nvidia-settings]]
-===== Java =====
+==== Java ====
 <code>
 $ sudo apt-get install icedtea-7-plugin openjdk-7-jre
@@ Line 72: / Line 72: @@
 <code>
 $ java -version
+</code>
+Check installed java
+<code>
+$ update-java-alternatives -l
 </code>
 Switch between Oracle Java 8 and Java 7
@@ Line 79: / Line 83: @@
 </code>
-===== Mount disk =====
+==== Mount disk ====
+To mount a disk manually
 <code>
-# Find path to new disk
+# Find path to disk
 $ sudo fdisk -l
    Device Boot      Start         End      Blocks   Id  System
@@ Line 92: / Line 97: @@
 </code>
+if necessary, format the new disk
+<code>
+$ mkfs -t ext4 /dev/device_name
+</code>
+To mount a disk automatically during start-up, find the UUID using ''blkid'' and add the disk to ''/etc/fstab''
+<code>
+$ blkid -s UUID
+/dev/sda1: UUID="2cf0b317-a030-4cb4-a78a-4f4893ac16d1"
+/dev/sdb1: UUID="f5d3494d-2d43-485f-97e8-2f9b1b967d90"
+/dev/sdb2: UUID="ce1496b4-bb74-4861-b2bb-ef8e6405a905"
+$ cat /etc/fstab
+# /etc/fstab: static file system information.
+#
+# Use 'blkid' to print the universally unique identifier for a
+# device; this may be used with UUID= as a more robust way to name devices
+# that works even if disks are added and removed. See fstab(5).
+#
+# <file system> <mount point>   <type>  <options>       <dump>  <pass>
+# / was on /dev/sdb2 during installation
+UUID=ce1496b4-bb74-4861-b2bb-ef8e6405a905 /               ext4    errors=remount-ro 0       1
+# /backup was on /dev/sda1 during installation
+UUID=2cf0b317-a030-4cb4-a78a-4f4893ac16d1 /backup         ext4    defaults        0       2
+# swap was on /dev/sdb1 during installation
+UUID=f5d3494d-2d43-485f-97e8-2f9b1b967d90 none            swap    sw              0       0
+</code>