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WordPress vs Joomla - Which is Better
This article covers the comparisons and differences of both WordPress vs Joomla. Basically, both WordPress and Joomla is an option for web hosting providers as options for web development tools.
Choosing a Content Management System (CMS) is an important decision that can have huge repercussions for your website.
There are a number available, each with their own pros and cons, and fanatical fanbases pulling for their chosen platform.
A detailed comparison (WordPress vs Joomla):
1. Search engine optimization
If we compare the Search Engine Optimization (SEO) capabilities of both platforms out of the box, Joomla takes a slight edge due enabling its users to set meta descriptions and keywords for new articles.
2. Security
Due to its popularity, WordPress has a giant target on its back when it comes to security vulnerabilities.
Delete Data in SQL using DELETE statement - How to use it
This article covers how to Delete Data in SQL using the DELETE statement.
The SQL DELETE Query is used to delete the existing records from a table.
You can use the WHERE clause with a DELETE query to delete the selected rows, otherwise all the records would be deleted.
In Structured Query Language, more commonly known as SQL, the DELETE statement is one of the most powerful operations available to users.
DELETE operations irreversibly delete one or more rows of data from a database table.
Being such a fundamental aspect of data management, it's important for SQL users to understand how the DELETE statement works.
The basic syntax of the DELETE query with the WHERE clause is as follows:
DELETE FROM table_name
WHERE [condition];You can combine N number of conditions using AND or OR operators.
Note: Be careful when deleting records in a table! Notice the WHERE clause in the DELETE statement.
The WHERE clause specifies which record(s) should be deleted. If you omit the WHERE clause, all records in the table will be deleted!
To Delete All Records:
It is possible to delete all rows in a table without deleting the table. This means that the table structure, attributes, and indexes will be intact:
DELETE FROM table_name;
DROP is used to delete a whole database or just a table. The DROP statement destroys the objects like an existing database, table, index, or view. A DROP statement in SQL removes a component from a relational database management system (RDBMS).
Zabbix server cant connect to java gateway - Fix it now
This article covers how to fix Zabbix error "Server can't connect to java gateway" by making some changes in the server configuration files and restarting the Zabbix and java gateway.
Zabbix is software that monitors numerous parameters of a network and the health and integrity of servers. Zabbix uses a flexible notification mechanism that allows users to configure e-mail based alerts for virtually any event.
This allows a fast reaction to server problems.
Zabbix offers excellent reporting and data visualization features based on the stored data.
This makes Zabbix ideal for capacity planning.
Redis Slow Log - More about it
This article covers how Redis Slow Log works. Redis Slow #Log is one of the best tools to debug and trace the Redis database.
The Redis Slow Log is a system to log queries that exceeded a specified execution time.
The execution time does not include I/O operations like talking with the client, sending the reply and so forth, but just the time needed to actually execute the command (this is the only stage of command execution where the thread is blocked and can not serve other requests in the meantime).
You can configure the slow log with two parameters:
1. slowlog-log-slower-than tells Redis what is the execution time, in microseconds, to exceed in order for the command to get logged. Note that a negative number disables the slow log, while a value of zero forces the logging of every command.
2. slowlog-max-len is the length of the slow log. The minimum value is zero. When a new command is logged and the slow log is already at its maximum length, the oldest one is removed from the queue of logged commands in order to make space.
Redis Slow Log configuration can be done by editing redis.conf or while the server is running using the CONFIG GET and CONFIG SET commands.
Available since 2.2.12.
This #command is used in order to read and reset the Redis slow queries log.
Redis slow log overview
The #Redis Slow Log is a system to log queries that exceeded a specified execution time.
Slowlog, as its name, is used to record commands whose execution time exceeds limitation (a little slow).
The execution time does not include I/O operations like talking with the client, sending the reply and so forth, but just the time needed to actually execute the command (this is the only stage of command execution where the thread is blocked and can not serve other requests in the meantime).
The Redis SLOWLOG is used to help identify queries which are taking too long to execute.
You can configure the slow log with two parameters:
slowlog-log-slower-than tells Redis what is the execution time, in microseconds, to exceed in order for the command to get logged. Note that a negative number disables the slow log, while a value of zero forces the logging of every command. slowlog-max-len is the length of the slow log. The minimum value is zero. When a new command is logged and the slow log is already at its maximum length, the oldest one is removed from the queue of logged commands in order to make space.
The configuration can be done by editing redis.conf or while the server is running using the CONFIG GET and CONFIG SET commands.
Methods to reduce server load
This article covers tips to reduce server load. The load speed of websites mainly depends on the constant load that the server is maintained.
Load expresses how many processes are waiting in the queue to access the computer processor. This is calculated for a certain period of time, and the smaller the number the better.
Tips To optimize and speed up your server:
1. Enable caching.
2. Setup a fast reverse proxy.
3. Choose the right application server.
4. Fine tune your web server.
5. Turn on HTTP/2.
6. Defragment your database tables & optimize server settings.
7. Fix your DNS query speed.
8. Trim down your site's critical rendering path.
Why is your Website server slow?
The cause of slow servers usually lays with the web host.
You could be having a slow site because you are hosted on a free web hosting.
You are on a low quality hosting service with poor support.
Or your site needs a higher spec hosting account with more resources eg a VPS.
A large volume of unoptimized images is usually the most common reason behind website slowness.
High-resolution images can consume lots of bandwidth while loading.
Uploading larger sized images and then scaling them down can unnecessarily increase the size of your web page – causing your website to load slowly.
MongoDB failed to load list of databases - Fix it now
This article covers how to resolve the error 'MongoDB failed to load the list of databases' can occur due to various reasons that include failed database user/password authentication, outdated Robo 3T version, and so on.
The error 'MongoDB failed to load the list of databases' means that you can't connect if there are no databases to list.
To fix the error 'MongoDB failed to load the list of databases':
1. You can fix this issue with 1.2 connecting to a new mongo 4.2.
It's fixed when using robo3t version 1.3, which supports newer version of mongo.
2. You can create a database and a collection for it.
Once you create a database and a collection, it works.
3. You will need to upgrade mongodb to the last version, so you can to connect in your local database.
