Linux Server Hacks: 100 Industrial-Strength Tips and Tools
Rob Flickenger
Language: English
Pages: 242
ISBN: 0596004613
Format: PDF / Kindle (mobi) / ePub
A competent system administrator knows that a Linux server is a high performance system for routing large amounts of information through a network connection. Setting up and maintaining a Linux server requires understanding not only the hardware, but the ins and outs of the Linux operating system along with its supporting cast of utilities as well as layers of applications software. There's basic documentation online but there's a lot beyond the basics you have to know, and this only comes from people with hands-on, real-world experience. This kind of "know how" is what we sought to capture in Linux Server Hacks.Linux Server Hacks is a collection of 100 industrial-strength hacks, providing tips and tools that solve practical problems for Linux system administrators. Every hack can be read in just a few minutes but will save hours of searching for the right answer. Some of the hacks are subtle, many of them are non-obvious, and all of them demonstrate the power and flexibility of a Linux system. You'll find hacks devoted to tuning the Linux kernel to make your system run more efficiently, as well as using CVS or RCS to track the revision to system files. You'll learn alternative ways to do backups, how to use system monitoring tools to track system performance and a variety of secure networking solutions. Linux Server Hacks also helps you manage large-scale Web installations running Apache, MySQL, and other open source tools that are typically part of a Linux system.O'Reilly's new Hacks Series proudly reclaims the term "hacking" for the good guys. Hackers use their ingenuity to solve interesting problems. Rob Flickenger is an experienced system administrator, having managed the systems for O'Reilly Network for several years. (He's also into community wireless networking and he's written a book on that subject for O'Reilly.) Rob has also collected the best ideas and tools from a number of other highly skilled contributors.Written for users who already understand the basics, Linux Server Hacks is built upon the expertise of people who really know what they're doing.
Professional Visual Studio 2013 (Wrox Programmer to Programmer)
Real World OCaml: Functional programming for the masses
hacker will take intelligence, practice, dedication, and hard work. Therefore, you have to learn to distrust attitude and respect competence of every kind. Hackers won’t let posers waste their time, but they worship competence — especially competence at hacking, but competence at anything is good. Competence at demanding skills that few can master is especially good, and competence at demanding skills that involve mental acuteness, craft, and concentration is best. If you revere competence,
will run an ngrep looking for any GET or POST request that includes search or find somewhere in the URL. The results look something like this: Go ogle online. caligula.nocat.net -> www.google.com : o'reilly mac os x conference caligula.nocat.net -> s1.search.vip.scd.yahoo.com : junk mail $$$ tiberius.nocat.net -> altavista.com : babel fish caligula.nocat.net -> 166-140.amazon.com : Brazil livia.nocat.net -> 66.161.12.119 : lart It will unescape encoded strings in the query (note the ` in the
rob@caligula:~/.skel/.ssh$ ls -al total 4 drwxr-xr-x 3 rob staff 102 Sep 9 20:51 . drwxr-xr-x 6 rob staff 204 Sep 9 20:52 .. lrwxr-xr-x 1 rob staff 26 Sep 9 20:51 authorized_keys2 -> ../../.ssh/id_dsa.pub This is a link called authorized_keys2, and it points to your live public key. You are using public key ssh connections, right? If not, consult [Hack #66]. Now when this script runs, it will copy the contents of ~/.skel to the host you specify on the command line, straight into your home
int(11) default NULL, gid int(11) default NULL, homedir varchar(255) default NULL, shell varchar(255) default NULL, UNIQUE KEY uid (uid), UNIQUE KEY userid (userid) ) TYPE=MyISAM; CREATE TABLE groups ( groupname varchar(30) NOT NULL default '', gid int(11) NOT NULL default '0', members varchar(255) default NULL ) TYPE=MyISAM; One quick way to create the tables is to save the above to a file called proftpd.schema and run a command like mysql proftpd < proftpd.schema. Now we need to tell proftpd
Without Creating an ISO File 4. Networking4.1. Hacks #45-53 45. Creating a Firewall from the Command Line of any Server45.1. See also: 46. Simple IP Masquerading46.1. See also: 47. iptables Tips & Tricks47.1. Advanced iptables Features 47.2. See also: 48. Forwarding TCP Ports to Arbitrary Machines48.1. See also: 49. Using Custom Chains in iptables49.1. See also: 50. Tunneling: IPIP Encapsulation50.1. See also: 51. Tunneling: GRE Encapsulation51.1. See also:
