You don’t want to risk your Linux server’s security. Install these six devices to create a secure network.
When compared to popular proprietary operating systems like Windows and macOS, tech experts frequently claim that Linux is the best safe option. Although that is generally true, Linux does not provide you with a secure environment by default.
The security of a Linux server mostly depends on the precautions you take and the technologies you employ to fortify your system against malware, viruses, and other harmful attacks.
Nothing is impenetrable, thus it makes sense to secure your Linux server with the top open-source security solutions available.
Scanners and Analyzers for the Open Network
Various tools are used by a system administrator to track, scan, and examine various vital network events. When configuring the security settings on your server, you should only rely on the o
pen-source applications that are the most well-known and trustworthy.
1.ClamAV
An open-source antivirus tool called ClamAV is made to search for malware and viruses that target Linux systems. It offers a multi-threaded scanning tool that is perfect for real-time detection of a variety of threats, all of which are based on their unique signatures. You can use ClamAV’s built-in command-line interface to detect live threats as well as perform system-wide scans on demand and update signatures.
ClamAV is not even close to competing with other proprietary antivirus software, such as those made available by well-known companies like ESET or BitDefender. Both businesses brag of being user-friendly and provide a long range of features. On the other hand, ClamAV excels at its core duties and is a superb open-source antivirus programme that lacks the flashy extras that its rivals offer.
2. Wireshark
Since 1998, the open-source network monitoring application Wireshark has been regarded as one of the top packet sniffers and network protocol analyzers. A sizable global community of software developers and network experts generously supports it. Updates are provided by this support group in the form of the most recent network developments, encryption techniques, and security fixes.
Given the growing security dangers of today, Wireshark is safer than any closed-source networking software because it is a potent open-source tool. This is the reason why big businesses, government agencies, and major multinational enterprises rely on this application to help them with various types of network problems and traffic monitoring. This entails doing crucial duties, such as capturing and looking through the content of live packets.
3. Nikto
Nikto is an open-source, GPL-licensed scanning programme that performs in-depth evaluations of web servers. It is capable of identifying more than 6,700 different varieties of harmful code, 1,250+ out-of-date server versions, and even specific server problems within 270 different versions.
Nikto can be used to examine configuration settings for servers that have different index files. It makes an effort to identify the installed web servers and the associated programmes. You will always have the most recent version because the tool plugins receive frequent, automated updates from the developer.
Nikto is not intended to be used as a covert tool, so you should avoid doing so. It can quickly test web servers, but you must be aware that the server administrator is keeping an eye on Nikto’s log files.
4. Snort
The most innovative tool in every Linux system administrator’s toolbox is Snort, and the greatest part is that you may download it for free. By comparing suspicious network activity against a list of predetermined rules, its Intrusion Prevention System (IPS) is equipped with rules to find hostile activity inside the network.
As a packet sniffer, logger, or system-wide full-time network IPS programme, these are the three main uses for Snort.
Although you would typically use this programme as a packet filter, it can recognise threats based on their signatures, which Wireshark cannot. However, Snort’s effectiveness in blocking suspicious network activity while allowing genuine ones rests heavily on the user’s ability to define rules.
5. Nmap
It is a never-ending challenge for large server organisations to study their network packets and the various kinds of vulnerabilities hiding within their networks. There aren’t any short network tools on the market, but few few are as effective and flexible as Nmap in terms of network security, auditing, and mapping.
An open-source and totally free programme for examining network vulnerabilities is called Nmap, or network mapper. Network administrators can look at active devices, find available hosts, find open ports, and quickly uncover security vulnerabilities on local systems.
Nmap is a perfect security tracking tool for any Linux server administrator whether you wish to monitor large and complex networks with numerous devices, subnets, or single hosts.
The main responsibilities of Nmap are the analysis of unprocessed IP packets and the provision of live host network information, including banners, services, and ports. With the aid of this tool, you may quickly take the necessary action after finding any open ports in a system.
Malware and Virus Scanners
You should not trust in urban legends like “Linux can’t be infected,” even though Linux distributions are more secure than other types of systems. These beliefs are falsehoods, just like they sound.
To prevent extensive network outages brought on by the invasion of malicious malware, Linux server operators need to treat their system security seriously.
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