What is DNS security?
DNS security is the process of defending DNS infrastructure against cyberattacks to maintain its speed and dependability. When the DNS protocol was first developed, integrated security was not included. More advanced threats surface every day, and they quickly take advantage of any vulnerabilities in the DNS protocols. This is why maintaining several levels of security surrounding the DNS is necessary.
Common DNS Security Threats
Let’s take a look at some of the most prevalent security threats that target the DNS:
1. DNS Spoofing (Cache Poisoning)
In DNS spoofing attacks, hackers corrupt the DNS cache by inserting false information into a DNS resolver. When a user tries to access a legitimate website, the compromised resolver redirects them to a malicious site instead. This can be used to steal sensitive information like login credentials or spread malware.
2. DDoS Attacks
Distributed Denial-of-Service (DDoS) attacks flood a DNS server with an overwhelming amount of traffic, making the service unavailable to legitimate users. DNS servers are often targeted in these attacks to bring down websites or disrupt critical online services.
3. DNS Tunneling
DNS tunneling is a method used by attackers to hide data within DNS queries, which can then be used to exfiltrate information from a compromised network. It allows attackers to bypass firewalls and other security measures because DNS traffic is often trusted by default.
4. Man-in-the-Middle Attacks
In a DNS man-in-the-middle attack, an attacker intercepts the communication between a user and the DNS resolver. By doing this, the attacker can manipulate the DNS query and return a malicious IP address, directing the user to a fake website.
5. Domain Hijacking
Domain hijacking occurs when attackers gain unauthorized access to a domain’s DNS settings, allowing them to reroute traffic, steal data, or take control of the domain. This type of attack can have devastating consequences for businesses, especially if they lose control of their domain names.
What kind of DNS security measures are in place on Lania’s Servers?
Here at Andromedia, we use lania.com.au as our hosting and domain platform. Lania’s servers keep your website running without interruption.
PCI compliant
All of Lania’s servers are PCI-compliant, i.e. the technical and operational guidelines companies adhere to to safeguard and preserve credit card information supplied by cardholders and transmitted during card processing transactions is known as payment card industry (PCI) compliance.
Hardware Firewall
A firewall is a network security tool that monitors traffic entering and leaving the network. Hardware firewalls prevent certain types of traffic from leaving the network and block traffic over any unused or unwanted ports from entering the network, such as traffic that could leak sensitive data. Lania uses Fortinet Firewalls, one of the best hardware firewalls in the industry.
Web Application Firewall (WAF)
A WAF, or Web Application Firewall, filters and monitors HTTP traffic between a web application and the Internet. It generally shields web applications from various threats, including SQL injection. Lania uses ModSecurity, an open-source web-based firewall application (or WAF).
ConfigServer Firewall (CSF)
CSF is a software-based firewall installed on the servers. It offers a sophisticated and user-friendly web-based interface for controlling firewall settings, and the server account is shielded from malicious tools that attempt to access your website via unaffiliated services. Login Failure Daemon (LFD) is a child service with ConfigServer Firewall.
Login Failure Daemon (LFD)
LFD is a process that periodically searches the most recent log file entries for login attempts made against your server that may have failed repeatedly in a short time. These attacks are commonly called “brute-force attacks,” the LFD process reacts swiftly to such patterns by blocking offending IPs.
DDoS Mitigation
The process of effectively defending a targeted server or network against a distributed denial-of-service (DDoS) attack is known as DDoS mitigation. An intentional attempt to obstruct regular traffic on a server, service, or network by flooding the target or its surrounding infrastructure with excessive Internet traffic is known as a distributed denial-of-service (DDoS) attack.
CXS
A server antivirus system called ConfigServer Exploit Scanner (CXS) identifies and removes different kinds of malware.
CloudLinux and CageFS
In addition to security, Lania servers provide privacy in that users cannot see other users or discern whether other users are present on the server by using a virtualized file system on Linux-based Operating System Servers known as CageFS.
Contact us if you have any questions regarding Hosting and Domains.
Sources:
- https://www.cloudflare.com/en-gb/learning/dns/dns-security/
- https://synergywholesale.com/faq/article/security-measures-in-place-on-our-servers/
- https://www.namecheap.com/support/knowledgebase/article.aspx/10123/89/using-cxs-scan-via-ssh/
- https://configserver.com/configserver-security-and-firewall/
- https://www.hostpapa.com/knowledgebase/csf-configserver-security-and-firewall/
- https://www.checkpoint.com/cyber-hub/network-security/what-is-firewall/what-is-a-hardware-firewall
- https://www.cloudflare.com/en-gb/learning/ddos/glossary/web-application-firewall-waf/
- https://www.cloudflare.com/en-gb/learning/ddos/what-is-a-ddos-attack/
- https://www.cloudflare.com/en-gb/learning/ddos/ddos-mitigation/
- https://cloudlinux.zendesk.com/hc/en-us/articles/8955430586908-What-is-CageFS
- https://www.investopedia.com/terms/p/pci-compliance.asp