linux

I'm running Centos 6, and every once in a while the cursor changes to the one shown below

I am not 100% sure, but this has happened about 3 times and it may have to do with Adobe Acrobat reader. Clicking on the windows doesn't do anything, and the only way to solve this problem is by rebooting my VM instance. Any idea what may be causing this issue?

Problem: You have a contact us form hosted on your website sending an email to your local domain, but the email never leaves your web server because your mail server is hosted elsewhere. The mail works fine for all other email domains (your customers receive confirmation emails), but your own domain fails to arrive (cc'ing to yourself).

This is really mind boggling problem, and it took me a while to find a solution that works in my environment. In a nutshell, there are a number of solutions but in certain environment first few options doesn't work.

There seems to be a number of RHEL packages that support far east Asian language support like Korean, Japanese or Chinese. None of the package description explains how to install them, and configure to work with different languages so here is one method I found working.

1. Before you can install Linux packages on your system, you'll have to login as a 'root' user either by 'su' or 'login' command.

2. Install required Linux packages.

I've had a hell of time today trying to figure out vmware server 2 network bridging problem. The server I've setup more than 2 years ago have been running flawlessly with more than a few reboots over the course of 2 years, and never had network problem in the Guest Operating system running Centos 5.

I have been working with PDF files for many years, and use this document format for exchanging documents with clients, friends and various people. I prefer PDF over MS Word due to its portability and non-commercial status. There are various tools available to produce PDFs, split & merge, password protect permissions and PDF documents, and transform from one version to another.

If you need to share a holder between your Windows host and Linux guest, you may use native VMware folder sharing available on VMware Workstation or VMware Player. To allow folder sharing, you must install VMware Tools on the guest operating system. I've used a VMware Player to demonstrate the configuration options, but WMware Workstation 8 will follow the similar steps.

Prerequisites
■ VMware Tools installer is written in Perl, verify that Perl is installed in the guest operating system.

1. Go to Virtual Machine -> Virtual Machine Settings ....

ImageMagick is a software suite to create, edit, compose or convert bitmap images. To use this utility in PHP, you'll need to install ImageMagick Linux package and also build and install a PHP extension.

Prerequisite for installing imagick PHP extension is php-pear and gcc packages, so let's get those packages installed.

# yum install php-pear gcc

Now, that you have php-pear and gcc, you may install ImageMagick packages.

# yum install ImageMagick ImageMagick-devel php-devel
# pecl install imagick

I've had a chance to install Subversion on Windows machines in the past, but this is my first try on SuSE Linux. The process is pretty straight forward, and it's fairly easy to follow. Here is the run down summary of how to get started.

1. Use Zypper to install the following modules:

# zypper install subversion subversion-tools apache2

2. Once you have required software modules, installed browse the following README file to setup your subversion repositories.

An SSL certificate contains the information about issuer, valid dates, subject and other cryptic information. The openssl x509 subcommand may be used to retrieve those information from a SSL certificate.

# The "-text" option will output full breadth of certificate information.
bash# openssl x509 -text -in server.crt

# The "-issuer" option will show issuer.
bash# openssl x509 -noout -in server.crt -issuer

# The "-subject" option will show Organizational information.
bash# openssl x509 -noout -in server.crt -subject

To disable responses to a ICMP ping request, the following two kernel parameters can be added to the /etc/sysctl.conf file.

# Disable ping response
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_echo_ignore_all = 1

To apply the changes, perform the following command.

# sysctl -p

To make it one time change, run the following command.

echo 1 >/proc/sys/net/ipv4/icmp_echo_ignore_all