It appears that latest php version 5.1.6-20.el5_2.1 under RHEL / CentOS Linux v5.2 has made some major changes. As a result choort jail setup using previous instructions no longer works. PHP is crashing with segmentation fault errors. So I had to trace php errors using strace command.
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Postfix MTA updated to fix security vulnerabilities such as incorrectly checks the ownership of a mailbox. In some configurations, this allows for appending data to arbitrary files as root. This update has been rated as having moderate security impact.
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CentOS Linux 5.2 has been released and available for immediate update via yum command. You can also download DVD / ISO images.
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Recently updated/posted Linux and UNIX FAQ (mostly useful to Linux/UNIX new administrators or users) : Update Fedora 7 Linux OpenBSD install BASH shell package Star / Stop FTP server on FreeBSD / OpenBSD How to install Linux / UNIX *.tar.gz tarball files Install Language support in CentOS 5 or Red Hat Enterprise Linux Display or [...]
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You should always aware of maximum amount of memory and maximum number of CPU supported by Linux systems / server.
This is an essential task for making out decisions. You must consider at least AMD and Intel platforms, tested under RHEL 5 only:
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