Tag Archives: solaris

How to limit SSH (TCP port 22) connections with ufw on Ubuntu Linux

How to limit SSH (TCP port 22) connections with ufw on Ubuntu Linux

How do I limit ssh connection attempts using UFW (Uncomplicated Firewall) on Ubuntu or Debian Linux server?
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Download Free eBook PDF: The Awk Programming Language

Download Free eBook PDF: The Awk Programming Language

AWK is a programming language designed for text processing and typically used for a data extraction and reporting tool. It is a standard feature of Linux, FreeBSD, OpenBSD, MacOS and most Unix-like systems.

The Awk Programming Language

The Awk Programming Language

This is one of my favorite books. It is a superb book if you are looking to learn about AWK. AWK is very fast when it comes to data processing. I highly recommend this classic book to all Unix fans.

Download The Awk Programming Language Book PDF Version {11.7 MB} or use wget command as follows:
$ wget https://archive.org/download/pdfy-MgN0H1joIoDVoIC7/The_AWK_Programming_Language.pdf
Sample outputs:

--2017-01-23 10:17:18--  https://archive.org/download/pdfy-MgN0H1joIoDVoIC7/The_AWK_Programming_Language.pdf
Resolving archive.org (archive.org)... 207.241.224.2
Connecting to archive.org (archive.org)|207.241.224.2|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://ia802309.us.archive.org/25/items/pdfy-MgN0H1joIoDVoIC7/The_AWK_Programming_Language.pdf [following]
--2017-01-23 10:17:19--  https://ia802309.us.archive.org/25/items/pdfy-MgN0H1joIoDVoIC7/The_AWK_Programming_Language.pdf
Resolving ia802309.us.archive.org (ia802309.us.archive.org)... 207.241.228.49
Connecting to ia802309.us.archive.org (ia802309.us.archive.org)|207.241.228.49|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 8204128 (7.8M) [application/pdf]
Saving to: 'The_AWK_Programming_Language.pdf'

The_AWK_Programming_Language.pdf            100%[========================================================================================>]   7.82M  11.7MB/s    in 0.7s    

2017-01-23 10:17:20 (11.7 MB/s) - 'The_AWK_Programming_Language.pdf' saved [8204128/8204128]

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How to map static IP address using dnsmasq under LXD (Linux containers)

How to map static IP address using dnsmasq under LXD (Linux containers)
I am using LXD (Linux container) to host Apache, MySQL, Perl and PHP-based app. I would like to assign or map fixed IP address to my MySQL container. How do I allow dnsmasq DHCP server to assign a static IP address to LXD container based on name or MAC address?
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How to log real user’s IP address with Nginx in log files

How to log real user’s IP address with Nginx in log files

My nginx server is behind a reverse proxy load balancer. How can I show the correct client IP address in nginx log files when nginx is behind a load balancer?
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How to create a new sudo user on Ubuntu Linux server

How to create a new sudo user on Ubuntu Linux server
I am a new Ubuntu Linux 16.04.xx LTS server user. How do I create a new sudo user on my server? How do I add a new user as sudoer file using the command line option on Ubuntu? The sudo command allows a permitted user to run a command as the superuser (root user) or […]
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Error while loading shared libraries: libXrender.so.1 on Linux

Error while loading shared libraries: libXrender.so.1 on Linux

I am trying to use wkhtmltopdf command to create and convert html pages to a pdf. However, I am running into errors though as follows when try to use wkhtmltopdf via a shell or Python script:
     Creating foo.pdf …
     ~/bin/wkhtmltox/bin/wkhtmltopdf: error while loading shared libraries: libXrender.so.1: cannot open shared object file: No such file or directory
     Error: foo.pdf not found.

How do I fix this problem with out installing the xserver on my Ubuntu or Debian server?
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