![8vl3onvznkopxa6ny9995yrc4gw[1]](https://i0.wp.com/www.krazyworks.com/wp-content/uploads/2021/10/8vl3onvznkopxa6ny9995yrc4gw1-175x150.jpg "Awk & sed Snippets for SysAdmins")
Books have been written on the subject of awk and sed. Here’s a small sample of commands I put together over the years that are useful for everyday system administration tasks. Most of these tasks …
Read the full story »Sun Java Desktop
A few screenshots taken with Sun Java Desktop running under Solaris 10 on a SunBlade 2000 workstation, which also works great as a heated footstool when placed under your desk.
A general view of the desktop …
Monitoring process CPU and memory usage
This article contains examples of using prstat to monitor CPU and memory utilization by individual processes and groups of processes.
Example 1: Show CPU and memory usage by all processes called “*ora_smon_imanax*”
The following prstat command will …
Using pkg-get on Solaris
Pkg-get Installation Notes
Pkg-get is an open-source, Sun-approved software installation and management tool for Sun Solaris. You can use pkg-get to install a variety of pre-compiled software without having to worry about version compatibility, patch requirements, …
Installing SuSE Linux 10 on a laptop
What’s the best Linux distro for desktop applications? My subjective opinion based on years of Linux experience is that SuSE 10 at the moment offers the best combination of features and user friendliness. The latter, …
Veritas Enterprise Administrator GUI
The following is an overview of the GUI for Veritas Enterprise Administrator 3.2
Exporting spreadsheet data to MySQL
The following is a process for migrating spreadsheet data to MySQL database using a Shell script in a Unix environment. To follow this tutorial you must already know how to create MySQL schemas and tables. …
Script to modify Veritas HA Cluster Resource Configuration
The following interactive Korn shell script can be used to make common changes to the configuration of Veritas HA Cluster resources. The script enables you to view the listing of available resources; view resource configuration; …
Bounce Veritas HA Cluster resource
The following is a Korn shell script that can be used from command line or cron to bounce a Veritas HA Cluster resource. This can be useful to resolve certain problems with Oracle databases running …
Cygwin X-server configuration
To connect with Cygwin to a Unix X-server in XDMCP-broadcast mode, create a shortcut as shown below. In the target field enter:
Running Windows Apps on Linux
CrossOver is a commercial variation of Wine freeware – a Windows emulator for Linux. This program allows you to run popular Windows applications under x86-based Unixes, including Linux, FreeBSD, and Solaris. Wine and CrossOver can …
Configuring multi-IP network interfaces
This article explains how to configure a network interface to support virtual IP addresses. This is useful in a cluster environment or in any high-availability service cnfiguration, when you need to ensure that at least …
Handling errors and trapping system calls
In the course of writing a shell script it is important to consider possible error and unexpected interrupts. Let’s say you wrote an interactive script that allows users to archive old files to free up …
Passing shell variables to awk and sed
By default awk and sed do not expand shell or system variables and do not pass their own variables back to the shell. To use shell variables awk and sed statements must be included in …
Solaris performance monitoring
The following is a brief overview of common performance monitoring tools for Solaris, including built-in tools, freeware add-ons, and commercial applications.
Souce: http://www.sunperf.com/perfmontools.html
Built-in Tools
vmstat
The vm in vmstat stands for Virtual Memory, of course. So let us …
Wget examples and scripts
Wget is a command-line Web browser for Unix and Windows. Wget can download Web pages and files; it can submit form data and follow links; it can mirror entire Web sites and make local copies. …
Uninstalling Solaris 10 from a multi-boot system
Boot into one of the operating systems you would like to keep (i.e. Windows, Linux, etc.) and set its partition as “Active”. Reboot your system. If the system boots into the OS of your choice …
Basic Network Configuration Under Solaris
The following document provides a general overview of the network configuration process for Solaris. For a detailed review of Solaris network configuration please see Chapter 4 of the O’Reilly Solaris 8 Administration Guide by Paul …
Multi-booting Windows XP and Solaris 10
When creating a multiboot system with Windows XP and Solaris 10 you need to install Windows XP first. If Windows is already installed, repartition the hard drive to allocate sufficient space for your Solaris installation. …
Create boot block on Solaris disk
To make a Solaris disk bootable you need to install the boot block on the disk. This should be done, for example, after copying the primary boot disk to the secondary disk.
Basic Exceed configuration
The following is a list of steps for basic configuration of Exceed to connect to Unix servers.
Solaris boot disk copy using dd
The following Korn shell script will make a bootable copy of the boot disk on a Solaris system. The script uses dd and requires that the source disk and destination disk have the same geometry.
Command-line backup methods
The following is a brief overview of standard Unix comman-line utilities used for data backup on Solaris systems. Most of the information below is also applicable to other unixoid systems.
Commands & Shells »
Synology NAS Hacks
![rhd3hj6zvnqeth7qo8em0alduj0[1]](https://i2.wp.com/www.krazyworks.com/wp-content/uploads/2021/10/rhd3hj6zvnqeth7qo8em0alduj01-80x80.jpg "Synology NAS Hacks")
I’ve been using various Synology NAS devices for many years now, and they’re great. Well, almost. There are a few rough spots that don’t thrill me. These consumer-grade devices are designed to be difficult to …
Finding Duplicate Photos
![9dwz62kvm0gtjya9kwb7pawtk9y[1]](https://i2.wp.com/www.krazyworks.com/wp-content/uploads/2021/10/9dwz62kvm0gtjya9kwb7pawtk9y1-80x80.jpg "Finding Duplicate Photos")
Being a shutterbug and a digital hoarder can get expensive. A couple of days ago, my
TerraMaster D5-300 5-bay DAS crashed. Again. This time it was the power supply. I replaced it only to discover that …
Applications »
Synology NAS Hacks
I’ve been using various Synology NAS devices for many years now, and they’re great. Well, almost. There are a few rough spots that don’t thrill me. These consumer-grade devices are designed to be difficult to …
WordPress: Post-processing of the image failed
![ytioq398kc1wnvvz95uixhcn5ii[1]](https://i2.wp.com/www.krazyworks.com/wp-content/uploads/2021/08/ytioq398kc1wnvvz95uixhcn5ii1-80x80.jpg "WordPress: Post-processing of the image failed")
This particular WordPress issue appeared with version 5.3 and is refusing to go away. However, the problem here is not with WordPress but with the Apache ModSecurity. The particular ModSecurity rule in question is 200003 …
Data »
Synology NAS Hacks
I’ve been using various Synology NAS devices for many years now, and they’re great. Well, almost. There are a few rough spots that don’t thrill me. These consumer-grade devices are designed to be difficult to …
Finding Duplicate Photos
Being a shutterbug and a digital hoarder can get expensive. A couple of days ago, my
TerraMaster D5-300 5-bay DAS crashed. Again. This time it was the power supply. I replaced it only to discover that …
Monitoring »
NFS I/O Stats with Logging
![tq9mhhd5xy2q0kto2j1785n6odv[1]](https://i1.wp.com/www.krazyworks.com/wp-content/uploads/2021/10/tq9mhhd5xy2q0kto2j1785n6odv1-80x80.jpg "NFS I/O Stats with Logging")
The nfsiostat is an excellent tool for analyzing NFS performance. The only major problem with this utility is that it’s designed to be used interactively. It does not have logging or timestamping capabilities. I needed …
Finding Cron Jobs
![iwoau71okwxqh4jv3k4ook32qps[1]](https://i2.wp.com/www.krazyworks.com/wp-content/uploads/2021/08/iwoau71okwxqh4jv3k4ook32qps1-80x80.jpg "Finding Cron Jobs")
Cron is an indispensable tool for system administration. The difficulties in working with cron in a large environment stem from its decentralized nature. Cron jobs multiply like rabbits, and keeping track of them is not …
Networking »
NFS I/O Stats with Logging
The nfsiostat is an excellent tool for analyzing NFS performance. The only major problem with this utility is that it’s designed to be used interactively. It does not have logging or timestamping capabilities. I needed …
Inventorying NFS Mounts and Mount Options
![4ucne6vs8m7hqdl0el9ddqd1sql[1]](https://i2.wp.com/www.krazyworks.com/wp-content/uploads/2021/10/4ucne6vs8m7hqdl0el9ddqd1sql1-80x80.jpg "Inventorying NFS Mounts and Mount Options")
As time goes by, NFS mounts multiply like rabbits. Added by many different people over the years, these entries present a dizzying variety of mount options – most are a copy-paste job that makes little …
Editor
Igor
Sr. Unix SysAdmin with twenty years experience supporting Solaris, HP-UX, AIX, IRIX, and Linux servers in a large distributed environment.
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