A Simple Server
The task is to construct a simple server which just passes a string to the client. Client/server describes the relationship between two computer programs in whi...
Category: Notes
Fixed: USB Drive Read Only in Ubuntu 13.04
Problem : USB disk/storage devices are auto loaded as Read Only in Ubuntu. When attempting write operation it gives the message like “Read only file syste...
Remove virus “myFolder.exe”
I could fix the usb-disks infected with the virus which replaces your folders with a file folderName.exe, by following these steps (on Windows) – Run the ...
javax.net.ssl.SSLHandshakeException: unable to find valid certification path to requested target
Error: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuil...
Skip Authorization on MySQL DB
To skip authorizations and login without password to MySql server, sudo vi /etc/mysql/my.cnf Add the line skip-grant-tables after the linewhich reads skip-exter...
Chat/Text messaging from commandline on Linux
Want to urgently copy a text message from one pc to another, or have a short conversation with a peer on another pc ? here’s how – @ PC1: nc -l [por...
How to find the latest queries run in MySQL
Run the following queries – SET GLOBAL log_output = 'TABLE'; SET GLOBAL general_log = 'ON'; After the latest 100 queries executed after this is done can b...
Activate password authentication on Ubuntu VMs on Amazon EC2
ssh -i [path to private-key-file] [target IP] # In the host shell sudo adduser [username] # Add a new user; this command also prompts for setting the passwo...
Extract .gz file using gzip without deleting the original file
Extract the .gz file to standard output (option -c) and pipe this to target file. # example <pre><code>gzip -c inputfile.gz > outputfile</code...
Find the files contained in/provided by an Ubuntu/Debian package
On console, run dpkg -L [package name] KjKj [/.] Sreekumar programs computers as a hobby and profession. Into programming from his school days, Sree uses Codema...