Vamsi Pavan’s Place

http://www.cag.lcs.mit.edu/~rinard/osnotes/

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Virtual Memory
Frames and their physical address
Page Fault
Thrashing

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Delete the scraps and leftovers on your hard drive.
RAM, your computer’s temporary storage area, loses all stored data when the power is turned off. Your pagefile is extra, RAM-like storage on your hard drive. It maintains its data even when your computer looses power.
The pagefile can contain unencrypted passwords as well as other sensitive data. […]

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Table of Contents
1. Setting quotas
2. Enabling and disabling quotas
3. Checking and updating quotas
Summary

1. Setting quotas
Linux enables you to limit the amount of space that a user or group can consume on a given partition. To do this, you use the quotaon, quotaoff, and edquota commands.
You can configure a quota that […]

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Table of Contents
1. Disk types, units, and partitions
2. Creating partitions
3. Using fdisk
4. Creating file systems with mkfs
Summary

1. Disk types, units, and partitions
Before partitioning a disk in Linux, it is useful to have some knowledge of hard drive geometry and structure. You also need to know the conventions used by Linux to […]

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Table of Contents

1. The role of partitions in Linux
2. Planning Linux partitions
3. Repartitioning
Summary

1. The role of partitions in Linux
Before they can be used, hard drives must be divided into sections called partitions. Partitions are different physical sections on a hard drive that can be formatted and used independently.
The system sees each […]

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Fedora Core 4 Linux Installation Notes
Personal Fedora Core 4 Installation Guide
Fedora Core 3 Linux Installation Notes
Personal Fedora Core 3 Installation Guide
Fedora Core 4 Tips and Tricks
Unofficial guide for Fedora Core
Fedora Multimedia Installation
Some more

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We all know the normal usage of ‘mount’ as
command line usage:
$ mount -t /dev/hda1 /mnt/directory
in /etc/fstab file:
/dev/hda1 /mnt/directory vfat defaults 0 0
By using either of above usages, only root can have write permissions on vfat filesystems. For getting write permissions to normal users:
/dev/hda1 […]

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To configure fetchmail (I hope you know that it is used to download mails from remote server to localsystem), create file named ‘.fetchmailrc’ in home directory and add the following line to it.
poll [server ip address] with proto [server type] user [username]
for example:
poll 192.168.36.200 with proto pop3 user pavan_sv
in case of the user ‘pavan_sv’ on […]

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Sometimes, eventhough we can browse the web, we are not able to use any chat clients/messengers like yahoo and msn. This can happen for any of the following reasons:
–> DNS Server is not working on the proxy server (service named start should fix it)
–> IPTables is restricting that port… make sure that the port is […]

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