In this article, we will talk about some basic security practices that are best to configure before or as you set up your applications.
The SSH key is a pair of cryptographic keys that can be used to verify the SSH server as an alternative to a password-based login. Private and public key pair created prior to authentication. The private key is kept confidential and secure by the user, while the public key can be shared with anyone.
To configure SSH key authentication, you must place the user’s public key on the server in a special directory. When the user connects to the server, the server will ask for proof that the client has a relevant private key. SSH Customers will use a private key to respond in a manner that proves private key ownership. The server will then let the customer connect without a password.
A firewall is a piece of software (or hardware) that controls what services are exposed to the network. This means blocking or restricting access to any port unless they should be available in public.
On a typical server, a number services may be running by default. These can be categorized into the following groups:
- The public service accessible to anyone on the internet, often anonymously. This good example is a web server that might allow access to your site.
- Personalized services only accessible by select group of authorized accounts or from specific locations. An example can be a database control panel.
- Internal services are accessible only within the server itself, without disclosing service to the outside world. For example, this might be a database that only accepts local connections.
The firewall can ensure that access to your software is restricted by the above categories. The public service can be left open and available to everyone and private services can be restricted based on different criteria. Internal services can be made entirely to the outside world. For unused ports, access is strictly restricted in most configurations.
VPNs and Private Networking
Private networks are networks that are only available to certain servers or users. VPN, or virtual private network, is a way to establish a secure connection between remote computers and deliver connections as if it were a private network. This provides a way to configure your services as if they were on a private network and connect remote servers through a secure connection.
Public Key Infrastructure and SSL/TLS Encryption
Public key infrastructures, or PKI, refer to systems designed to create, manage, and certify certificates to identify individuals and make communication difficult. SSL or TLS certificates can be used to authenticate entities that are different from one another. After verification, they can also be used to establish encrypted communication.
Service auditing is a process for knowing what services are currently running on servers in your infrastructure. Often, the default operating system is configured to run certain services on boot. Installing additional software can sometimes be interesting in dependence that also starts automatically.
Service auditing is a way of knowing what services are running on your system, which ports they are using for communication, and what protocols are accepted. This information can help you configure your firewall settings.
File Auditing and Instruction Detection System
File auditing is a process of comparing current systems to file records and features of your system files when it is a well known condition. This is used to detect changes to the system that may have been authorized. The intrusion detection system, or IDS, is a piece of software that monitors the system or network for invalid activity. Many IDS executions are based on the use of file auditing as a method of checking whether the system has changed.
Isolated Execution Environment
Isolating execution environments refers to any method in which individual components are run within their own dedicated space. This can mean separating out your discrete application components to their own servers or may refer to configuring your services to operate in
chroot environments or containers. The level of isolation depends heavily on your application’s requirements and the realities of your infrastructure.
Feel free to contact E-SPIN for the solution for your system and operation to reduce risk of your businesses and organization. We can secure and protect your businesses with our various software security technology, as well as handling of your server and system security concern.