Rute. LPI exam 101 prep: Hardware and architecture. Worldwide mirror sites. Index page. LPIC Prep. Debian Administration - Debian Administration Resources. Free On-line Linux Technical Books and Tutorials. Report this ad Linux System Administration Books - Networking LDAP Administration GuideLinux NFS Tutorial GuideLinux NIS / NIS+ Tutorial GuideThe IPv6 HowTo GuideSamba Administration GuideUsing SambaLinux Network Administration Guide openSolaris System Administration Books openSolaris 2008 Documentation Linux System Administration Books - General Global File System (GFS) GuideThe Linux Printing HOWTOManaging Software with yumLinux System Administrators GuideLinux Logical Volume Management GuideGRUB Administration Guide Linux System Administration Books - OpenSUSE Linux openSuse 11.1 Reference GuideopenSuse 11.1 Startup GuideOpenSUSE 10.3 Startup Guide SUSE AppArmor Administration Guide Linux System Administration Books - SUSE Linux SUSE Linux Enterprise Desktop 10 Network Guide SUSE Linux Enterprise Desktop 10 Deployment Guide SUSE Linux Enterprise Server 10 Quick Start-up Guide SUSE Linux Enterprise Server 10 Installation and Administration Guide Linux System Administration Books - Red Hat Linux.
LINUX ADMIN TIPS. Linux Server Administration Tips. Bash Guide for Beginners. Linux System Administration with Tips and Commands. The Linux Cookbook: Tips and Techniques for Everyday Use - Admin. Every Linux system has an administrator---someone who installs the hardware and software, maintains the system, and generally keeps things running smoothly. A single-user home Linux system, once installed and running, needs little administration -- but the occasional upgrade or maintenance task is necessary.
This appendix exists as a reference for those users who will also be performing the administrative duties on their system. While a complete administrative guide is out of the scope of this book, the goal of this appendix is to point the new Linux administrator in the right direction, giving tips on how to choose the computer you'll use for Linux, install Debian GNU/Linux on it, and get it ready for use. Unlike the rest of this book, this chapter contains recipes describing commands to be run by root, the superuser account. If you're new to Linux administration, you may want to consult the help resources listed in If You Need More Help.
Linux and Hardware Compatibility #! #! 5 Tips for any Linux administrator | HostingRealm. 5 Tips for any Linux administrator 1) Disable users account quickly. Every administrator at one point or another needs to quickly remove a users access on their Linux servers. We can do the below usermod -l Johnny The above will deny Johnny access to login to your Linux system via sshd, etc. Usermod -U Johnny The above will removed the ! 2) Disable ICMP Echo Replies (aka stop your Linux server from replying to pings) Ping? Echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all Now ping your system. Echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all 3) Limit your ssh daemon (sshd) to certain IPs. What we are going to do here is use tcpwrappers to limit access to sshd by certain IP blocks. Echo ‘SSHD : YOURIPHERE : ALLOW’ >> /etc/hosts.allow Now, we’ve granted your home IP access. Echo ‘SSHD : ALL : DENY’ >> /etc/hosts.deny Now you have blocked sshd access to everybody NOT defined in /etc/hosts.allow – be careful!
4) Disabling Trace in Apache. Echo ‘TraceEnable Off’ >> /etc/httpd/conf/httpd.conf reboot. Linux Tips & Tricks. The Geek Stuff. Christopher J. Pace- Linux Consultant. Linux administration tutorials for beginner | Linux basic config. This is not a dedicated section for Linux system administrator though its name is Linux administration page. All Linux users need to manage their own system. Besides, all tutorials in this section probably cover only 20% of the real Linux system administrator tasks. So what you can find here are all basic Linux administration guides a beginner needs to know to manage their own Linux system.
There are many useful tips to manage Linux in this section. Check out each tutorial and practice it in your own Linux system to be a good Linux user. Linux administration - Linux file and directory ownership A basic Linux administration on how to setup file and directory ownership. Linux administration - File and directory permissions Linux file and directory permissions are very important subject in Linux administration. Linux vi editor tutorial - Create, view and edit file in command line terminal This is a basic Linux vi (and vim) text editor tutorial.
Leading Edge Business Solutions - Training notes This is the download page for our open source LPI 101 and 102 training manuals. These are licenced under the GNU Free Documentation Licence (FDL). (The front cover text is designed to let the world know that we offer training courses on the same material.)
Buy online: You can now purchase hard copies of the notes from lulu.com who will ship them anywhere in the world for a small fee. You can click here to buy in good old tree-based presentation media. Of course, since the notes are free, you can download them, print them out, modify them and hack around generally. Everything should be like this, don't you think? CommentsPeople from all over the world tell us they like these notes.
Hi, I just wanted to thank you for writing and releasing to the public your training notes, they are well written and very thorough. Related Training courses, by the people who wrote the notes. Download FeedbackYour comments here ... Linux System Administration and Configuration. Basic command line: Also see ntpstat, smbstatus, ifstat, prtstat, pidstat, lpstat, mailstat, sar, cifsiostat, ... GUI/Graphical: List of tools: tools for finding the status of your system Processes execute within their own process environment, they have their own memory, current working directory, priority, process ID, parent process ID and the file access privileges of the user ID under which they execute. The basic Linux monitoring commands such as pstree and ps -auxw and top will inform you of the processes running on your system.
Identify the process: pstree -p OR ps -auxw OR top Kill the process: kill <process-id-number> killall <command-name> This will perform an orderly shutdown of the process. A signal may be given to the process. In the previous example, the HUP signal was sent to the process. Identify all known signals: fuser -l Process Monitoring and Management GUI Tools: xosview: Oldie but goodie. Also see the GUI tool QPS. Then install qps: rpm -ivh qps-1.9.7-5.i386.rpm. Online - Free Online Books. UNIX/Linux Security Best Practices. UNIX/Linux Security Best Practices You can take steps to protect yourself from intruders who attempt to break into your UNIX or Linux system. Here are some things to do to make intrusion more difficult. Turn off unused services Services which you don't enable can't be attacked from the outside. If you don't provide access to a service, it doesn't matter if there are any vulnerabilities in the daemon which would provide that service.
So disable anything you don't need to use. Some daemons are started when the system boots, and remain active as long as the system remains up. If your system is configured with inetd, look at /etc/inetd.conf, and remove, or simply prefix with a "#" character to make it a comment, any entry providing a service you don't need.
#pop stream tcp nowait root /etc/uva/tcp_wrapper/tcpd /usr/local/etc/popper popper #imap stream tcp nowait root /etc/uva/tcp_wrapper/tcpd /usr/local/etc/imapd4 imapd Where available, install IP filter or firewall rules Linux View an example »