How to

Read all posts Tagged for this section

Fix FTP Passive Mode problem on OpenStack & EC2 VMs

Have you installed VSFTP in your OpenStack or Amazon EC2 VM and getting errors such as "Entering passive mode...connection failed"? If yes, then you have landed on the right page. This tutorial will help you to fix FTP passive mode ...

How to Allow SFTP and disallow SSH?

In this tutorial, I will explain how to configure SSH to allow SFTP and disallow SSH login access. Solution: Well, SFTP uses SSH and by default the users will able to use both SSH and SFTP. But if you ever want users to ...

Install PHP 7 on a fresh Ubuntu VPS: [Fix] Unable to locate package PHP

Recently one of my client provided a fresh VPS and asked me to install PHP 7, Apache and MySQL. While installing PHP, I encountered the below error: root@webimage:~# apt-get install php Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to ...

COMODO SSL Certificate Installation : Nginx

COMODO SSL Certificate Installation - I installed LEMP stack for one of my client on his CentOS 7 machine and configured SSL certificate obtained from COMODO for his domain. It was working fine in desktops and mobile devices. But my ...

Call to undefined function simplexml_load_file() – PHP Error [Solved]

While working on a migration of a Joomla powered website on to a new VPS with PHP version 7.0 and Apache 2.4, encountered the an error "Call to undefined function simplexml_load_file()". Below is the complete error. Error displaying the error page: Call ...

StartSSL Distrusted, Migrate to LetsEncrypt!

TRUST is the word that comes to our mind when we speak about Certificate Authority. StartSSL, a certificate authority that provides free SSL certificate with a validity of one year for non-commercial use. An initiative that aimed to secure the internet traffic has now ...

Understanding Affinity/Anti-Affinity Group Policies in OpenStack Mitaka

Nova service controls where the instances are started within OpenStack cloud environment. It means, the nova-scheduler decides which hypervisor will run a particular instance and this behavior is controlled using two filters (Affinity/anti-affinity group policies) - namely, ServerGroupAntiAffinityFilter and ServerGroupAffinityFilter. The ServerGroupAffinityFilter ...

Ctrl+S freezes Vi Editor & Unix terminal? Here’s how you can resume it!

Working on a Unix terminal and all of a sudden the terminal freezes after pressing Ctrl+S? Well, did you see the same behavior when you were editing a file using Vi? Not a problem, this tutorial will help you to resume ...

Delete Blank Rows in Excel – A Quick Tip!

Do you want to delete blank rows in an Excel file, the faster way? Excel generally uses the blank rows to determine data ranges, but sometimes you might want to get rid of those. For e.g., say you want to ...

vps germany

How to update GPG key for MySQL APT repository on Debian/Ubuntu?

If you are getting an error "GPG error and Duplicate sources.list" while configuring MySQL repository for installing MySQL server version 5.7, then here's how you can udpate GPG key. #apt-get update ..... W: GPG error: http://repo.mysql.com jessie InRelease: The following signatures were ...

How to Fix the_date() Returning Empty Date inside Loop in WordPress

Are you using the_date function inside the loop to display post published date? Well, you might notice the_date() returning empty date for the posts that are published on the same day. For example, if you have two posts published on the ...

How to fix Call to undefined function apc_fetch() – PHP Fatal Error [Solved]

I have been migrating one of the Joomla website and was stuck with a "PHP fatal error Uncaught Error: Call to undefined function apc_fetch()". If you are stuck with a similar error, then here's how you can solve it. Before that, ...

How to Install MySQL v5.7 using apt-get on Debian 8 Jessie

This tutorial will explain how to install MySQL v5.7 on Debian 8 Jessie server. The default repositories in Debian 8 will install MySQL version up to 5.6, so if you ever want to install 5.7, then you need to setup a ...

Apache Error: Symbolic link not allowed or link target not accessible

In continuation to my tutorial on Installation of Datawrapper and possible errors with solutions, here's another error in Apache - "Symbolic link not allowed or link target not accessible". Below is the complete error message from Apache error_log. AH00037: Symbolic link not ...

Not safe to rely on system’s timezone settings -PHP Warning

Here's another error related to Datawrapper installation - "PHP warning:  It is not safe to rely on system's timezone settings". Below is the complete error message from Apache error_log file. PHP Warning:  phpinfo(): It is not safe to rely ...

M2Crypto SSL Check Error: Peer certificate subjectAltName does not match [Solved]

Question: I'm stuck with M2crypto SSL check error while installing Webmin package on RHEL 5.5. Here's the complete error message: # yum install webmin File "/usr/lib64/python2.4/site-packages/M2Crypto/SSL/Checker.py", line 88, in__call__ fieldName='subjectAltName') M2Crypto.SSL.Checker.WrongHost: Peer certificate subjectAltName does not match host, expected netix.dl.sourceforge.net, got DNS:mirrors.netix.net How to solve this ...

Fix 404 Error on Password protected folders inside WordPress!

If you are trying to password protect a folder inside WordPress directory, then you will probably end up with '404 not found' error while accessing it via web browser. This error is caused due to the WordPress Permalink feature. This ...

Unknown column password_last_changed in ‘mysql.user’ [Solved]

Question: After upgrading MySQL to version 5.7, I'm not able to create a user or set password using GRANT query. Here's the error message: Unknown column password_last_changed in 'mysql.user'. For e.g., mysql> GRANT ALL PRIVILEGES ON db_name.* TO 'db_user'@localhost IDENTIFIED BY 'mypass'; ERROR 1054 (42S22): Unknown ...

  1. Pages:
  2. 1
  3. 2
  4. 3
  5. ...
  6. 95