Running Xen on Various Linux Distributions

I have been looking to various GNU/Linux distributions to determine their level of support for Xen.  Here’s what I found: Debian Etch – Xen Hypervisor 3.2.1 (via backports), Linux kernel 2.6.26 (via backports) Debian Lenny – Xen Hypervisor 3.2.1, Linux dom0 kernel 2.6.26 Debian Squeeze (testing) – Xen Hypervisor 3.4.2, Linux dom0 kernel ??? Ubuntu 8.04 (Hardy) …

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Fixing pygrub in Ubuntu 9.04

I think Ubuntu 9.04 is the only version of Ubuntu suffering from this bug but it appears as though no fix for this serious regression will be forthcoming.  To get pygrub to work you actually have to fix a bug in the python 2.5 curses library.  Open “/usr/lib/python2.5/curses/__init__.py” and add the following lines starting at …

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FileZilla sends spaces in user name fields

Just got done helping a user debug connection problems using FileZilla to connect over SFTP/SSH.  I noticed, sadly not immediately, that the username he was using was being send with an extra space at the end and thus was an invalid user.  I’m not sure there is a valid reason not to trim/strip whitespace from …

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Open Source Search Engines with Web Crawling and HTML Indexing

The term search engine is particularly vague.  It can mean an online search engine, or it can mean software that provides something similar to the online search engines, or it can mean software that does fulltext indexing and querying.  I specifically wanted to find a tool that could be used to create a niche search …

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Setting up a user with only scp and sftp access

In the olden days one had to use packages such as scponly and rssh in order to restrict a user account to just being able to use scp and sftp.  Now that functionality is built into OpenSSH.  A client wanted me to setup such an account for 1 user on a system.  I modified sshd_config …

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