Normally Linux systems can only read from Windows NTFS partitions, but not write to them which can be very annoying if you have to work with Linux and Windows systems. This is where ntfs-3g comes into play. ntfs-3g is an open source, freely available NTFS driver for Linux with read and write support. This tutorial shows how to use ntfs-3g on a Fedora 7 desktop to read from and write to Windows NTFS drives and partitions. read more…
su is run a shell with substitute user and group IDs. su is used to become another user during a login session. Invoked
without a username, su defaults to becoming the super user. The optional argument – may be used to provide an environment similar to what the user would expect had the user logged in directly. read more…
Sunidhi Chauhan is a Bollywood playback singer. She was employed by Microsoft India to sing a song about Windows Vista – The Wow is Now! You can listen to it here.
Hmmm seems like even paid employees of MS prefer Linux
The ifup and ifdown commands can be used respectively to activate and deactivate a NIC interface. You must have an ifcfg file in the /etc/sysconfig/network-scripts directory for these commands to work. Here is an example for interface eth0:
# ifdown eth0
# ifup eth0
If you need NFS, it is recommended to use NFS over TCP since NFS over UDP is not very secure. All 2.4 and 2.6 kernels support NFS over TCP on the client side. Server support for TCP appears in later 2.4 kernels, and in all 2.6 kernels.
To verify whether your server supports NFS over TCP, use the wire-test command (/usr/sbin/wire-test is part of the am-utils package). If your server supports NFS over TCP, the output looks like this:
# wire-test localhost Network 1: wire="172.16.1.0" (netnumber=172.16.1). Network 2: wire="172.16.1.1" (netnumber=172.16.1). My IP address is 0xac100101. NFS Version and protocol tests to host "localhost"... testing vers=2, proto="udp" -> found version 2. testing vers=3, proto="udp" -> found version 3. testing vers=2, proto="tcp" -> found version 2. testing vers=3, proto="tcp" -> found version 3. #
If the server does not support NFS over TCP, the output will look like this:
# wire-test localhost Network 1: wire="172.16.1.0" (netnumber=172.16.1). Network 2: wire="172.16.1.1" (netnumber=172.16.1). My IP address is 0xac100101. NFS Version and protocol tests to host "localhost"... testing vers=2, proto="udp" -> found version 2. testing vers=3, proto="udp" -> found version 3. testing vers=2, proto="tcp" -> failed! testing vers=3, proto="tcp" -> failed! #
To mount a shared directory using NFS over TCP, use the “proto=tcp” mount option:
# mount -o proto=tcp <nfs_server_name>:/pub /mnt
Make sure the target directory, in this example /mnt, exists on the client.
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