Troubleshooting Ubuntu Server : make life at the office easier by building resilient Ubuntu Server systems /: make life at the office easier by building resilient Ubuntu Server systems. (2015)

• Record Type: Book
• Other Titles: Make life at the office easier by building resilient Ubuntu Server systems
• Further Information: Note: Skanda Bhargav.
• Authors: Bhargav, Skanda
• Contents: Cover; Copyright; Credits; About the Author; About the Reviewer; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Package Management; Getting started with packages; Package; Repository; The .deb packages; Dependency; Open source; Using dpkg for package management; Understanding the apt-get package management tool; Updating the repository list with the apt-get update command; Installing a package with the apt-get install command; Upgrading a package with the apt-get upgrade command; Cleaning with the apt-get clean command; Purging a package with the apt-get purge command Fixing unsuccessful installations with the apt-get -f commandChecking for broken dependencies with the apt-get check command; The apt-cache tool; Searching for a package with the apt-cache search command; Package management with aptitude; Configuration and extra repositories; Resolving the ""failed to get"" error; Downloading software from an outside repository; Automatic updates; Security updates; Kernel updates; Application updates; The unattended-upgrades package; Creating a repository mirror; Setting up a mirror machine; Configuring the /etc/apt/mirror.list file; Using the local mirror The local host file -- zone ""0.0.127.in-addr.arpa""The reverse zone file -- zone ""24.126.10.in-addr.arpa""; The primary zone file -- zone ""ubuntuserver.org""; The primary zone file; The reverse zone file; PTR records; Summary; Chapter 3: Network Authentication; OpenLDAP; Installation; Populating the database; Logging; Access control; Kerberos; Installation; Database setup; Setting up the Kerberos client; Kerberos SSH and logon; Integrating LDAP with Kerberos; Installation; Database setup; OpenSSH, public, and private keys -- passwordless SSH; The SSH client and the server Setting up passwordless SSHDisabling password authentication; Allowing or denying users to SSH; Greeting users with a banner; Summary; Chapter 4: Monitoring and Optimization; Nagios; The Nagios setup; Adding another host in Nagios; Nagios templates; Nagios hostgroups and services; Nagios setup alerts; Writing a Nagios plugin; The NRPE plugin; Enabling external commands; Puppet; Installing Puppet; Setting up the client; Setting up the manifest; ClusterSSH; Summary; Chapter 5: Process Management; The basics of process management; and PPID; pidof; Parent and child; fork() and exec(); exec
• Publisher Details: Birmingham, UK : Packt Publishing
• Publication Date: 2015
• Extent: 1 online resource (1 volume), illustrations
• Subjects: 005.4/32; COMPUTERS -- Desktop Applications -- General; Client/server computing; Debugging in computer science; Client/server computing; Debugging in computer science; COMPUTERS -- Networking -- General; Electronic books; Electronic books; Electronic books
• Languages: English
• ISBNs: 9781782175025; 1782175024
• Related ISBNs: 9781785284144; 1785284142
• Notes: Note: Description based on online resource; title from cover page (Safari, viewed October 20, 2015).
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.