In recent years, cloud computing has become an increasingly popular way to store and access data and applications. In the Cloud, users can access their personal files on any computer with the internet without installing any external software or applications. The centralized data storage, processing and bandwidth makes this technology more efficient. At its core, Cloud computing involves using a network of remote servers to store, manage, and process data. Large cloud-based companies, such as Amazon Web Services, Google Cloud, or Microsoft Azure, usually provide these servers through their vast network …
Server
An associated key pair ( private key and a public key) is necessary to access EC2 instance securely. In case you have lost or corrupted the key pair, here’s how you can regain access to AWS EC2 Linux instance. Let’s assume that the EC2 instance running contains a website but you have lost the key pair that is associated with the EC2 instance. And here we will show the two easiest ways to regain access to AWS Linux EC2 instances. By using an Amazon Machine Image (AMI) By swapping the …
The ionice command is used to set I/O scheduling class and priority for a program. The I/O schedule for a program can be changed to the following: CFQ Noop scheduler Anticipatory Deadline The current Disk Scheduler can be viewed from root@twenty ~]# cat /sys/block/sd[ab]/queue/schedulernoop anticipatory deadline [cfq] The current scheduler can be changed by [root@twenty queue]# echo anticipatory > scheduler[root@twenty queue]# cat /sys/block/sda/queue/schedulernoop [anticipatory] deadline cfq Ionice Utility The ionice sets the io scheduling class and priority for a program or script. It supports the following three scheduling classes Idle: …
A fork bomb is a type of denial-of-service attack that can be executed on a computer system. It is a malicious program or script that creates a large number of processes, overwhelming the system and causing it to slow down or crash. The fork bomb works by creating a large number of child processes, which in turn create more child processes, leading to an exponential growth in the number of processes. The code for a fork bomb is often written in bash and executed in the command line. Once activated, …
Outsourced tech support is when you hire an external company to handle your business’s technical support. It is becoming increasingly popular among small to medium businesses as an affordable solution for their IT support needs. The benefits of outsourced tech support include reduced costs compared to hiring an in-house team, flexibility in scaling up or down as required, the opportunity to focus more on your business’s core functions, and access to up-to-date server technology and practices. Outsourcing Tech Support: Advantages As mentioned, the most significant advantage of outsourced tech support …
Clearing cache memory in Linux is a common task that is often necessary to improve system performance or to troubleshoot issues. One way to clear cache memory without having to reboot the system is by using the sysctl command. The sysctl command can be used to configure kernel parameters at runtime, which allows for various system settings to be adjusted without having to reboot the system. To clear the cache memory in Linux, you can use the following command: root@twenty ~]# sync && sudo sysctl -w vm.drop_caches=3 && sudo sysctl …
The WHM/cPanel can be accessed without knowing the actual password if it satisfies a single condition i.e you must have shell access to the server. If you have the shell access through SSH Keypair or using VPS nodes on the server, you can simply access the WHM panel without knowing the actual root password of the server. The steps to create a session to access the WHM panel for the root or any reseller accounts without a password is detailed below. whmapi1 is the command which could be executed via …
AWS CodeBuild is a completely overseen persistent incorporation administration. You simply indicate the area of your source code, pick your construct settings, and CodeBuild will run manufacture contents for accumulating, testing, and bundling your code. There are no servers for provisioning and scaling purposes, or software for installation, configuration, and operation. Build Caching in CodeBuild A cache can store reusable bits of your build environment and use them over various build. By using a cache, you can save more time in the project build setup. AWS CodeBuild now enables you to store …
Data analysis is a difficult task, which has seen an attempt to make things simple, forever. Amazon Athena is a data analysis platform that allows you to perform complex queries in a short amount of time. It employs no servers, which makes the setup simple. It is not a database management system. As a result, you get charged for the queries you run. Simply point your data into S3, define the required schema, and you’re ready to go with a typical SQL query. An introduction to AWS Athena Amazon Athena …
Email Migration is a process used to migrate mailbox content from one account to another. The command imapsync is a tool allowing incremental and recursive IMAP transfer from one mailbox to another.By default all folders are transferred, recursively. We sometimes need to transfer mailboxes from one imap server to another. This is called migration. What is imapsync command? imapsync is a good tool because it reduces the amount of data transferred by not transferring a given message if it is already on both sides. Same headers, same message size and …