Along with server and network security, host security should be among a network’s top security priorities. Furthermore, the most dangerous element in an organization is the end-users as they will directly interact with the company’s resources and network. This is why cybersecurity professionals need to secure their networks and resources against the potential threats from end-users, removable media, and peripherals.
What is host security?
With the advancement in technology, number of devices connecting to the network are also increasing and organization need to implement security policies, especially when these are not corporate devices. From handheld devices like phones and tablets, to the new work-from-home environment, there are more and more types of devices (hosts) being added to a network. It is of utmost importance that these devices are protected at all times, both software and hardware included. This is where host security comes in.
How do you manage devices and host security?
Two general areas that must be covered when dealing with network security devices are:
- Using protocols and software for protecting data. This method involves using software to help an organization protect internal network components like personal host-based firewalls and antivirus software.
- Addressing the physical components like network components, hardware, and physical security designs for securing the device.
How do you ensure security on a server?
Host security is an important part of server management for server administrators and web hosting providers. Some of the network security techniques that you can use are stated below.
1. Public Key Authentication for SSH
Organizations that want to secure their network needs to avoid using unencrypted access and opt for SSH, https, and SFTP. For better security, the organization should use SSH keys instead of password authentication on SSH. With this network security method, there will be no risk of a successful brute force attack on a weak password.
2. Strong Passwords
A secured server is usually a challenge for criminals. However, many server administrators often leave their server unsecured by using easily guessed passwords. Therefore it is best to use long and random passwords for restricting users with login type access.
A host-based firewall is a software or hardware device that helps to control how a service is exposed to a network and the types of traffic that can enter or go out of a given server. For better host security, organizations need a properly configured firewall to ensure that only publicly available services can be reached outside your servers.
4. Malware Scanning Software
You need a network defense mechanism to keep malicious individuals out of your server. Although some malicious individuals will manage to breach your server’s security, you will want to know about this as soon as possible. You will find lots of malware scanning software that you can install on your server.
5. Keep Software Up-To-Date
Generally, out-of-date software may likely comprise of security weaknesses that hackers can use to breach your server. Therefore organizations need to ensure that they use updated software.
6. Regular Backup
Although this may not be considered as a security measure, the major reason for securing a server is to keep the data stored. Since it is impossible to guarantee that a server will not be breached, organizations need to back up and encrypt their data in an offsite location. Organizations can then perform testing of recovery from backups regularly to neutralize ransomware attacks.
7. Monitor Logs
One of the essential security tools is the log. This is because a server gathers information about what it does and who connects to it. Furthermore, the patterns in the data collected can then show the malicious behavior or security compromises. There are several apps that you can use to monitor your server’s logs.
Some of the other tips that you can use to manage your server and network security are turning off unnecessary services, isolate the execution environment, through file auditing and intrusion detection system, etc.
Become a Certified Network Defender
EC-Council’s Certified Network Defender (CND) is a lab-intensive and hands-on network security training that focuses on creating network administrators that can protect, detect, and respond to any threats on the network system. In this training program, you will learn the various techniques used to ensure host security. Learn more on the program page.
How can we protect data security?
There are lots of ways that you can improve and protect data security. Some of them are beefing up password requirements, setting up two-factor authentication, encrypting data on the device, encrypting cloud data, securing your login information, limiting admin access, locking up your hard copy files, backup and update your data, etc.
What is network security?
Network security is a broad term that covers a multitude of technologies, devices, and processes. In its simplest term, it is a set of rules and configurations designed to protect the integrity, confidentiality, and accessibility of computer networks and data.