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Unix OS

Unix is a multitasking, multi-user computer operating system originally developed in 1969 at Bell Labs. Today, it is a modern OS with many commerci...

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Troubleshooting Solution

Linux: Viewing the status of all ports

This may be a very simple question, in which case I apologize, but for the life of me I can't find …

Build Your Own FreeBSD Update Server

Attention: This article will no longer be maintained. If you have any questions, please feel free to…
Research Solution

How many Bitcoin GPU's, today?


How many Bitcoin GPU's, today?

A few years ago, I was told there were 2 Billion GPU's mining Bitcoin.

Troubleshooting Solution

Self hosting OpenStreetMap OSM and Layers

If we self hosted the full OSM database and what ever else is needed, could we be 100% independent …
Troubleshooting Solution

crontab issue



I have two lines on  /etc/cron.d/ only the first line is executing, why ? : 

30 18 * * * root

Troubleshooting Solution

AIX - GPFS slowness problem


The customer complains a slowness in the transactions, from the analysis of the following …
Troubleshooting Solution

AIX bos.cifs_fs.rte  support smb2 ?



I have a version AIX cifs client  :

root@ZI720P7A [/] lslpp -L |grep cifs

Troubleshooting Solution

unix insecure permissions on dirs and files

On redhat 7 I'm trying to recurively search for files in a dir and it's sub dirs that are insecure …
Troubleshooting Solution

What is the purpose of "/dev/tty" when using the less command?

First I create a regular file with some contents (manual page of find command):

man find > …
Troubleshooting Solution

Script to change perms on files and dirs but change them back to their original perms.


Does anyone have a script to change the permissions of all files and dirs found under a path that

Troubleshooting Solution

Find  - perms checking and prune on Redhat


I was looking for some experts to help me with some find commands to check perms with pruning and

Troubleshooting Solution

Unix prune command. find perms and change


Trying to find the best way to find all files and dirs that have perms 400 600 or 700 and exclude

Troubleshooting Solution

More efficient way without using lsof to check open files


Is there a more efficient way to check for open file systems in these directories

or is there a more

Troubleshooting Solution

UNiX Script filesystem space usage Part2

I had asked for assistance creating a script to display filesystem usage over a certain percentage. …
Troubleshooting Solution

SCO5 WARNING: table_alloc - Failed to get address space for exec data table


Running SCO OpenServer 5 and receiving the following message:

WARNING: table_alloc - Failed to get

Troubleshooting Solution

AIX update errors

I was asked to do an AIX update on an AIX 6.1 system. Before I started I did an lppchk -v and got …
Troubleshooting Solution

The columns of the "open file table"?

In reality, the "open file table" is not really a table, but let's say we will see it as a table. …

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