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August 17, 2019 – 8:04 pm

Consider this not-so-hypothetical scenario: you have some data on server_a that you would like to copy to server_b. Unfortunately, these two servers cannot communicate with each other. Nor do they have access to any common …

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Unix and Linux network configuration. Multiple network interfaces. Bridged NICs. High-availability network configurations.

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Commands & Shells

Cool Unix shell commands and options. Command-line tools and application. Things every Unix sysadmin needs to know.

Move USER to new primary group

November 19, 2005 – 10:41 pm
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A sample process for moving a user to a new primary home group on Solaris.

Check if Solaris supports 64-bit applications

November 19, 2005 – 10:41 pm
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How to determine if your installation of Solaris supports 64-bit applications.

Unix Files Transferred To CD

November 19, 2005 – 10:40 pm
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In our example we were requested to archive a 741 mb directory to CD. The source data resided on a Unix data server.

Remotely mount cdrom

November 19, 2005 – 10:39 pm
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Here’s an example of how to mount a cdrom on Solaris from a remote ISO image via NFS.

Useful awk one-liners

November 19, 2005 – 10:38 pm
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Useful awk code snippets for your sysadmin tasks.

Copy directory structure and files with cpio

November 19, 2005 – 10:38 pm
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A basic command to copy directory structure and contents using cpio.

Using FTP with pipes

November 19, 2005 – 10:37 pm
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Pipe in Unix is a method of passing information from one command to another. The pipe take the output of the first command and sends it as input for the second command. The a second …

Create TAR and pipe through gzip

November 19, 2005 – 10:36 pm
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A simple example of creating a gzip-compressed tar archive of the current directory.

Fsck operations

November 19, 2005 – 10:36 pm
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The following is a collection of examples using fsck command. It is important to unmount VXFS before running fsck on Veritas filesystem.

RSync remote copy

November 19, 2005 – 10:35 pm
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The following is an example of using rsync to perform a irectory copy between two hosts over the network.

Oracle reinstallation

November 19, 2005 – 10:35 pm

Before beginning Oracle REinstall, make sure to remove the /var/opt/oracle/oraInst.loc file created by /tmp/orainstRoot.sh script during prior installation.
 
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Create and mount ISO image under Solaris

November 19, 2005 – 10:33 pm
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Here’s an example of creating and mount a CS ISO image under Solaris.