After configuring AWS SES service with Postfix, you may have found error in logs – SASL authentication failed . The error will not allow you to send email from server by using AWS SES service. Reasons For Error : SASL authentication failed 1. Incorrect Credential : (a) Many times the “SASL authentication failed” error happened…
The tutorial will give you idea, how you can send Nagios Report as pdf file via email. We will achieve this requirement, with the help of script and using wkhtmltopdf command line tool. We will set the Nagios Report script in crontab and send it via email to receiver person/team. In our previous post we…
To convert website page to pdf and image is very useful for various reasons. This kind of requirement you may have seen while making any report and we need to convert website page to pdf or image. Recently, we got requirement to create website page to pdf for some report. Actually the report was displaying…
While installing Readthedocs package inside Virtual Environement on Ubuntu 14.04 LTS , I found this error “Python headers are required to build Mercurial but weren’t found in /usr/include/python2.7/Python.h” . It seems the dependency issue with header files for python. So what should be fix for this issue. It is very simple, we have to installed…
Learn what is Ansible and its features. How to install Ansible on Ubuntu. Red Hat and CentOS in various versions. The Article will help you to provide basic understanding on Ansible and help you to get started.
The post will explain, how to set postgres password on PostgreSQL 9.4 . We expect , you have already install postgres 9.4 on your Ubuntu system . The user called postgres has all privileges to work in postgres server. It is like an administrator. After installing postgreSQL 9.4 , by default without password user can…
PostgreSQL is an object-relational database system (ORDBMS). It is free and its source code is available. Many volunteers, individuals and companies are contributing to develop the postgresql , the group is often addressed as PostgreSQL Global Development Group . PostgreSQL is cross platform means it can be run on many Linux/Unix based Operating System, Windows…
Webmin which is a web based system administration tool for unix based servers . The post will guide you to install latest webmin on Ubuntu 14.04 LTS Server. The webmin has list of modules to manage the unix / linux servers. One of the well known module is Virtualmin which will talk later on our…
This is quick post on print new line character in Unix / Linux. Here, we will share two methods of print / echo new line character. Generally , when we do bash/shell scripting most of the time we require this. Let’s start this essential basic of bash/shell scripting. echo command : new line character In…
Recently while installing redis from source, met with error – zmalloc.h:50:31: fatal error: jemalloc/jemalloc.h: No such file or directory . It seems the jemalloc is the dependency which is not allowing redis to compile. NOTE: We have already install redis 3.0 from source on Ubuntu 14.04 / CentOS 7 / RHEL 7 , where we…
In this tutorial we will learn, how to install redis 3.0 from source on Ubuntu 14.04 / CentOS 7 / RHEL 7. In our previous post we wrote tutorial on, install redis on CentOS 7 with yum command . Redis is a an Open Source advanced key-value cache and store . To know more about…
Wget command is generally used by many Linux/Unix users. GNU Wget is a free utility for non-interactive download of files from the Web. It supports HTTP, HTTPS, and FTP protocols, as well as retrieval through HTTP proxies (The definition taken from man wget command). If you are internet user, you many times have faced with…
I am working with grep command and found two dashes ( — ) in output. How can I print grep command output without two dashes ( — ) that is also called separator. Answer : To print grep command output without separator , you can use the option –no-group-separator with grep command. How to print…
The osTicket is one of the famous open source ticketing tool , widely use in many organisations and companies. We will explain, how to install osTicket ( Open source ticketing tool) on Ubuntu 14.04 LTS . We will do self hosted osTicket installation. In case, you are looking for professional support for osTicket , that…
The secondary logging will help you to save history command output as log. In this practical, we will set the secondary logging for all users including root. Secondary logging will help you in audit by this way you can find out on which date and time users hit the command.