Server Management Services | Cloud Management | Skynats

Tag: server management

Server Management Services | Cloud Management | Skynats
Client Area

Tag: server management

How to fix No input file specified error on WordPress

In some cases, we can see No input file specified error while accessing your website just like shown in the image below.

The No input file specified error can be fixed in many ways and we are discussing the major 3 fixes.

We are managing a lot of WordPress websites under our Server Management plan and we will be doing regular updates by our expert engineers to prevent all vulnerabilities.

  1. Tweaking PHP Version

If your PHP version is older (5.6) then you can update it to PHP 7.4 OR latest in order to solve.

2. Update the .htaccess file

This error can happen when updating WordPress to the latest version because of incorrect mod_rewrite rules. Check the .htaccess file that if it is configured properly with the below default code.

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

We can create a new .htaccess file by goes to the wp-admin link and Settings –> Permalink, without changing anything we can save it. Then WordPress will automatically create a .htaccess for it.

Disable the faulty Plugin

By using certain plugins will shows this error in WordPress and try it by disabling the plugin that is faulty which causes the issue. You can disable all the plugin and try activating one by one until you get the error.

Prevent your website from Downtimes

Get our experts to manage your server with weekly auditing and 24/7 monitoring
GET STARTED NOW
September 23, 2020
0

WordPress Zero-Day Vulnerability in File Manager Plugin

Several WordPress sites are being probed and attacked in this week over 700000 active installations. This is caused due to the WordPress Zero-Day Vulnerability in File Manager Plugin in WordPress and this will help unauthenticated users to execute commands and upload malicious files on websites. A new patch 6.9 was released on September 1 and this will be a solution for this vulnerability. Wordfence deployed an additional firewall rule for preventing this vulnerability. The Zero-day vulnerability affected plugin details are given below:

We are managing a lot of WordPress websites under our Server Management plan and we will be doing regular updates by our expert engineers to prevent all vulnerabilities.

Description: Remote Code Execution (RCE)
Affected Plugin: File Manager
Plugin Slug : wp-file-manager
Affected Versions: 6.0 - 6.8
CVSS Score: 10.00 (Critical)

Solution :
Patched version: 6.9

File Manager plugin helps WordPress administrators to upload and manage their site files, this plugin contains an additional library, elFinder. The source of the issue starts with the file manager plugin renaming the extension on the elFinder library’s connector.minimal.php.dist file to x.php, so it could be executed directly, even though the connecter file was not used by the File Manager itself. But elFinder has built-in protection against directory traversal.

In this type of library, there are example files that can access by anyone. This file could be used to initiate an elFinder command and was hooked to elFinderConnector.class.php file.

The hackers tried to inject this type of files recently;

  1. hardfork.php
  2. hardfind.php
  3. x.php

If your site were injected by these files you can see in /wp-content/plugins/wp-file-manager/lib/files directory of the WordPress site.

So from here, we can conclude that this zero-day vulnerability in the File Manager plugin can be prevented by updating the plugin to a 6.9 version immediately.

Prevent your website from Downtimes

Get our experts to manage your server with weekly auditing and 24/7 monitoring
GET STARTED NOW

September 7, 2020
0

Increase max_execution_time in WordPress

WordPress is mainly running based on PHP scripts. Every server sets a time limit for scripts that can run on the server. By default, the maximum execution time of PHP for WordPress is set as 30 seconds, if the limit exceeded then the WordPress shows the error as exceeded the limit. There are many methods to increase max_execution_time in WordPress.

We are dealing with many WordPress errors daily and have a strong experience to fix them. All these issues are covered under all our Server Management plans.

It can be solved by three ways;

  1. Edit php.ini file
  2. Edit wp-config.php file
  3. Edit .htaccess file

    Let’s see how these 4 methods we can do in an apache web server.
  • Edit php.ini file

We can increase the “max_execution_time” value in php.ini file and the php.ini file will be mostly located in /etc/php.ini

vim /etc/php.ini
###
max_execution_time = 300
###
  • 2.Edit wp-config.php file

The wp-config.php file is the default WordPress configuration file and we can increase the “maximum execution time” in wp-config.php file

set_time_limit(300);
  • Edit .htaccess file

If we use the Apache webserver then there is a .htaccess file that is used for how apache serves files from its root directory. Edit .htaccess file located in the WordPress installed root directory of apache by adding the below line at the end of the file.

php_value max_execution_time 300

After all the above changes, it is recommended to restart Apacge webserver for the changes to take effective.

service apache2 restart

Prevent your website from Downtimes

Get our experts to manage your server with weekly auditing and 24/7 monitoring
GET STARTED NOW
September 3, 2020
0

How to Install Redis on Ubuntu 18.04?

Redis is an open-source, in memory-data structure store and it can be used as a database cache and message broker. It’s a distributed in-memory key-value database with optional durability. It provides data structures such as strings, hashes, lists, sets, sorted sets, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams.

This blog helps you to Install Redis on Ubuntu 18.04 version and if you are looking for installing and managing Redis for your application or server, please contact our expert team to get it done. You can also refer our high-performance server management plan to get this done under monthly server management.

Installation of Redis on Ubuntu 18.04

sudo apt update
sudo apt install redis-server

Configure Redis Server on Redis configuration file

cd /etc/redis/
vim redis.conf
####Change the bind ip address with 127.0.0.1
bind 127.0.0.1
####Change the "supervised" option to systemd because we are using ubuntu server and systemd.
supervised systemd

Start and enable Redis server

systemctl restart redis-server
systemctl enable redis-server

Check the status of Redis server, Redis server will listen on 127.0.0.1 on port 6379.

systemctl status redis-server
netstat -plntu

Check Redis by “redis-cli” command

redis-cli ping
redis-cli ping "Hello Redis"

If the “redis-cli ping” command shows output as “PONG” and the “redis-cli ping “Hello Redis” shows output as “Hello Redis” then we can confirm that the Redis server is installed correctly.

Redis needs to be configured and hardened properly to secure the environment and to make it worth for your application.

Do you want our team to install and configure Redis property for your website?

CONTACT US NOW
August 3, 2020
0

How to Install Netdata on Centos7

Netdata is an open source monitoring system for Linux servers. It provides performance and health monitoring for systems and applications. By using this tool we can monitor CPU usage, Memory, processes, Disks like the overall performance of a Linux server.
This topic covers the steps to install netdata on the centos7 server. Please try our server management plans to get this setup covered for free.

Install dependencies for Netdata

curl -sL https://rpm.nodesource.com/setup_10.x | sudo bash -
yum install epel-release
sudo yum install curl jq nodejs
sudo yum install git zlib-devel libuuid-devel libmnl gcc make git autoconf automake pkgconfig curl findutils libuv-devel

Install Netdata using the official installation script

git clone https://github.com/firehol/netdata.git --depth=1
cd netdata/
./netdata-installer.sh
systemctl start netdata
systemctl enable netdata

Test Netdata using

http://server-ip-address:19999

Netdata Dashboard will be as below

Netdata dashboard
Netdata Dashboard

Do you want us to install and configure Netdata?

CONTACT US NOW
July 27, 2020
0

Country Based Redirection In Magento using GeoIP

The GeoIP module is used to find which Geolocation or area is used by the IP from IP location database. We can setup country based redirection rule in htaccess for Magento2 which will redirect the required stores to the specific countries.
To add rules for country based redirection in Magento we have to install the GeoIP module.

The below installation needs to be done on a centos 7 server and if you need this to be done from our end or need help to setup on any other OS, Click here to contact our experts to get it done right now.

Install GeoIP and dependencies

yum install GeoIP GeoIP-devel GeoIP-data zlib-devel

Change the directory to the /usr/share/GeoIP/, upload and extract GeoIP database in this location
You can download the GeoIP database from https://dev.maxmind.com/geoip/geoip2/geolite2/

cd /usr/share/GeoIP/
tar -xzvf GeoLite2-ASN_20200630.tar.gz

Install the required packages for GeoIP

yum install httpd-devel apr-devel ea-apache24-devel.x86_64 ea-apache24-tools.x86_64

 Download and extract GeoIP module using the below steps

wget https://github.com/maxmind/geoip-api-mod_geoip2/archive/1.2.10.tar.gz
tar -xzvf 1.2.10.tar.gz
cd mod_geoip2_1.2.10
sed s/remote_ip/client_ip/g -i mod_geoip.c

Compile and install the GeoIP module

apxs -i -a -L/usr/lib64 -I/usr/include -lGeoIP -c mod_geoip.c

Load the module in Apache at Apache modules conf.

vim /etc/apache2/conf.modules.d/mod_geoip.conf

###########
LoadModule geoip_module /usr/lib64/apache2/modules/mod_geoip.so

<IfModule mod_geoip.c>
GeoIPEnable On
GeoIPScanProxyHeaders On
GeoIPDBFile /usr/share/GeoIP/GeoIPASNum.dat Standard
GeoIPDBFile /usr/share/GeoIP/GeoIPCity.dat Standard
</IfModule>
###########

Check Apache Configuration and restart Apache

httpd -t
service httpd restart

Verify if GeoIP module is enabled by

httpd -M | grep geoip

You can see the result as shown below

Next, we have to add the rule for redirection of countrywide access in Magento2 site. There are certain country codes available for GeoIP database. We can use that country codes here to add rules in .htaccess.

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{ENV:GEOIP_COUNTRY_CODE} ^(GB|RU|IN)$
RewriteCond %{REQUEST_URI} !^/store/
RewriteRule .* https://www.example.com/store/ [L]
</IfModule>

where GB|RU|IN are the country codes for UK, Russia and India

Restart Apache

service httpd restart

According to the above rule, the users accessing from UK and Russia and India for /store of https://www.example.com, will redirect to https://www.example.com/store.
By using GeoIP module we can also block and deny countrywide access to the site.

Are you struggling with managing your server?

check our management plans here
July 23, 2020
0
Company
Services
Quick Contact

© Copyright 2020 Skynats.com