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Search results for Using extended attributes to better protect files

Gentoo

Using extended attributes to better protect files

Post date: August 18, 2005, 18:08 Category: System Views: 11618 Comments
Tutorial quote: How many times have you accidentally overwritten a configuration file during an etc-update that you had customized? I had been aware of extended attributes for a long while now, but I had never taken the time to actually use them. The extended attribute that I am mostly interested with is the immutable attribute. This attribute, which can only be set by root, prevents a file from be changed or deleted, even by root.
Ubuntu

Disk ARchive (Backup and Restore) using dar and kdar(dar Frontend)

Post date: January 12, 2007, 18:01 Category: System Views: 3656 Comments
Tutorial quote: Dar is a shell command that makes backup of a directory tree and files. Its features include splitting archives over several files, CDs, ZIPs, or floppies, compression, full or differential backups, strong encryption, proper saving and restoration of hard links and extended attributes, remote backup using pipes and external command (such as ssh), and rearrangement of the “slices” of an existing archive. It can now run commands between slices, encrypt archives, and quickly retrieve individual files from differential and full backups. Dar also has external GUI like kdar for Linux,thanks to the well documented API.
Linux

Introduction to Linux files

Post date: April 12, 2005, 16:04 Category: Miscellaneous Views: 2456 Comments
Tutorial quote: This newbie-level Linux tutorial is an introduction to handling files from the Linux command line. It will cover finding files, determining their type, renaming, copying, examining their attributes, reading their contents, and, in the case of binary files, how to get clues to learn something more about them. Further reading will be suggested for editing files since that topic is beyond the scope of this article.
Debian

ACL(Access Control List) Configuration

Post date: April 4, 2006, 20:04 Category: Installing Views: 3101 Comments
Tutorial quote: Access Control Lists (ACLs) provide a much more flexible way of specifying permissions on a file or other object than the standard Unix user/group/owner system. Windows NT and above, when running on an NTFS partition, use ACLs to specify permissions on files and directories. This document attempts to show how you can enable ACL support on your Linux box and use Samba to provide an SMB file server for use by machines in a Windows 2000 domain.

ACLs are best stored in the actual file system itself. To that end, there are patches available for ext2 and ext3 that enable ACL support using Extended Attributes (EAs). SGI's XFS also has ACL support built in, but XFS is not currently covered in this document.
Debian

Password-Protect Directories With mod_auth_mysql On Apache2 (Debian Squeeze)

Post date: November 15, 2011, 10:11 Category: Miscellaneous Views: 30090 Comments
Tutorial quote: This guide explains how to password-protect web directories (with users from a MySQL database) with mod_auth_mysql on Apache2 on a Debian Squeeze server. It is an alternative to the plain-text password files provided by mod_auth and allows you to use normal SQL syntax to create/modify delete users. You can also configure mod_auth_mysql to authenticate against an existing MySQL user table.
OpenSUSE

Highlight Domain & Subdomain for SSL websites in Firefox

Post date: May 27, 2009, 22:05 Category: Security Views: 3565 Comments
Tutorial quote: When you visit a Secure website in Firefox chances are that the FavIcon for the website is replaced with a Green bar with the details of the company. This is because of the default properties in Firefox to display detailed information of the website from the Extended Validation Certificate on the website. However, if the website doesn’t host a Extended Validation certificate then the website URL (link) in the address bar is not highlighted or in otherwords shows as a normal website URL.
Ubuntu

Anonymous BitTorrent Using ItsHidden VPN

Post date: July 28, 2009, 18:07 Category: Benchmarks Views: 4080 Comments
Tutorial quote: With anti-piracy outfits warning those who share copyrighted content and ISPs threatening to pull the plug on alleged offenders, many file-sharers have decided to protect themselves by going anonymous. To accommodate this growing demand, ItsHidden is now offering a free VPN targeted at those who want to protect their privacy online. Named ItsHidden, the free VPN solution has opened up a BETA test to the public, who can now privatize their Internet traffic - including BitTorrent transfers - in next to no time. ItsHidden was set up with torrent users in mind, allowing them to hide their identities from ‘third parties’ who choose to snoop on their activities.
Unix+clones

Enhance boot-time security with GRUB passwords

Post date: April 26, 2006, 13:04 Category: Security Views: 2983 Comments
Tutorial quote: The security of data files on your computer is at risk, and not just because you are connected to the Internet. Anyone with physical access to your machine can bypass all passwords to gain entry to your hard disk with one simple command given to the bootloader. Fortunately, the popular GRand Unified Bootloader (GRUB) is equipped with security features to prevent such an 'attack.' It can password protect each entry of your boot menu.
Linux

Retrieving XML With cURL And Simple XML

Post date: November 21, 2009, 02:11 Category: Programming Views: 4487 Comments
Tutorial quote: This tutorial explains how to use Curl and SimpleXML SimpleXML is a php5 extension used to parse XML data. Topics covered include loading XML documents, parsing nodes & attributes, and filtering data with XPath statements.
Ubuntu

Installing And Working With Xoops Under Ubuntu 6.10

Post date: June 24, 2007, 00:06 Category: Installing Views: 4014 Comments
Tutorial quote: I want to show you how to install Xoops on Ubuntu. I used the Ubuntu 6.10 Server Edition, but it will probably work on other systems as well. Xoops is a modern Content-Management-System which can be extended with a variety of modules.
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