Name: Mike Chirico
Member since: 2003-07-09 00:34:25
Last Login: 2008-04-20 20:01:04

Homepage: http://souptonuts.sourceforge.net/chirico/

Notes:

Spread the Word: Write How-to Articles or Write Code

Google Gmail on Home Linux Box using Postfix and Fetchmail If you have a Google Gmail account, you can relay mail from your home linux system. It's a good exercise in configuring Postfix with TLS and SASL. Plus, you will learn how to bring down the mail safely, using fetchmail with the "sslcertck" option, that is, after you have verify and copied the necessary certificates. You'll learn it all from this tutorial. And you'll have Gmail running on your local Postfix MTA. There is also a follow-up article Postfix 2nd Instance for Sender-based Routing: Multiple Gmail and Comcast Accounts.

Breaking Firewalls with OpenSSH and PuTTY: If the system administrator deliberately filters out all traffic except port 22 (ssh), to a single server, it is very likely that you can still gain access other computers behind the firewall. This article shows how remote Linux and Windows users can gain access to firewalled samba, mail, and http servers. In essence, it shows how openSSH and Putty can be used as a VPN solution for your home or workplace.

Create a Live Linux CD - BusyBox and OpenSSH Included : These steps will show you how to create a functioning Linux system, with the latest 2.6 kernel compiled from source, and how to integrate the BusyBox utilities including the installation of DHCP. Plus, how to compile in the OpenSSH package on this CD based system. On system boot-up a filesystem will be created and the contents from the CD will be uncompressed and completely loaded into RAM -- the CD could be removed at this point for boot-up on a second computer. The remaining functioning system will have full ssh capabilities. You can take over any PC assuming, of course, you have configured the kernel with the appropriate drivers and the PC can boot from a CD. This tutorial steps you through the whole processes.

SQLite Tutorial : This article explores the power and simplicity of sqlite3, first by starting with common commands and triggers, then the attach statement with the union operation is introduced in a way that allows multiple tables, in separate databases, to be combined as one virtual table, without the overhead of copying or moving data. Next, the simple sign function and the amazingly powerful trick of using this function in SQL select statements to solve complex queries with a single pass through the data is demonstrated, after making a brief mathematical case for how the sign function defines the absolute value and IF conditions.

Lemon Parser Tutorial: This article explains how to build grammars and programs using the lemon parser, which is faster than yacc. And, unlike yacc, it is thread safe.

How to Compile the 2.6 kernel for RedHat 9 and 8.0 and get Fedora Updates: This is a step by step tutorial on how to compile the 2.6 kernel from source.

Linux System Admin Tips: There are over 200 linux tips and tricks in this article. This article is updated weekly.

Virtual Filesystem: Building A Linux Filesystem From An Ordinary File. You can take a disk file, format it as ext2, ext3, or reiser filesystem and then mount it, just like a physical drive. Yes, it then possible to read and write files to this newly mounted device. You can also copy the complete filesystem, since it is just a file, to another computer. If security is an issue, read on. This article will show you how to encrypt the filesystem, and mount it with ACL (Access Control Lists), which give you rights beyond the traditional read (r) write (w) and execute (x) for the 3 user groups file, owner and other.

Working With Time: What? There are 61 seconds in a minute? We can go back in time? We still tell time by the sun?

Projects

• Lead Developer on souptonuts
• Lead Developer on Delcom

Articles Posted by mchirico

• Recommended Reading: (Request for Comments) 14 Sep 2004 at 15:04 UTC

Recent blog entries by mchirico

# yum -y update
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories
core                                                       
         [1/3]
Cannot find a valid baseurl for repo: core
Error: Cannot find a valid baseurl for repo: core

cd /etc/yum.repos.d/
perl -pi.backup -e "s/#baseurl/baseurl/" *

63 older entries...

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