Hong Kong servers, like other internet hosting platforms, are always under the threat of cyber attacks. Cyber attacks can seriously damage user websites, and can even directly destroy customer Internet service businesses. Whether it is for the later operation and maintenance of the website, or to help prevent and defend against network attacks, we should have a comprehensive and detailed understanding of several common network attacks on Hong Kong servers. So what are the common types of network attacks on Hong Kong servers?

1. Denial of service attack.

Denial of service attack, attempting to prevent you from providing services by crashing your server or overwhelming it. Denial of service attack is the easiest to implement and the most common attack behavior at present, mainly including: UDP flood, SYN Flood, DNS Query Flood , HTTP Flood, slow connection attacks, and hybrid attacks. In the face of these attacks, you need to filter subsequent connections from the same host on the firewall, and patch it to filter out those that come in on the external interface with internal source addresses. At the same time, in order to prevent hackers from using your network to attack others, turn off the broadcast address feature of the external router or firewall. To prevent being attacked, set rules on the firewall to discard ICMP packets.

2. Exploitation attacks.

Exploitation attack is a type of attack that attempts to directly control your server, mainly including: password guessing, Trojan virus, buffer overflow and other attack methods. When using Hong Kong servers, it is recommended to use strong passwords and passphrases to ensure that available services such as NFS, NetBIOS and Telnet are not exposed to the public. Locking is recommended if your server supports locking policies. At the same time, to avoid downloading suspicious programs and refusing to execute them, use network scanning software to regularly monitor the listening TCP services on internal hosts. In addition, the original operating system must be updated in time.

3. Information gathering attacks.

Information-gathering attacks do not cause harm to the target itself, and are used to provide useful information for further intrusions. Mainly include: address and port scanning, system structure spying, using information services, etc. For this type of attack, we can use firewalls to detect malicious scans and block scan attempts, while filtering out domain switching requests at the firewall.

4. False news attacks.

False message attacks are generally used to attack messages with incorrect target configurations, mainly including: DNS cache pollution, forged emails. Hackers can forge emails to your internal customers, claiming to be from someone the customer knows and trusts, with an installable Trojan horse attached, or a link to a malicious Web site. We need to filter incoming DNS updates on the firewall, external DNS servers should not be able to change what your internal server knows about internal machines.

The above are several common network attacks on Hong Kong servers. We can use these attack principles to deploy corresponding ones. Perfect security protection strategies, including setting and regularly updating high-strength administrator passwords, modifying default permissions and ports, installing firewalls and network security protection software and patches, using large bandwidth, deploying Hong Kong high-defense server solutions, etc. Through a comprehensive network attack protection strategy, we can maximize the security of Hong Kong servers and smoothly create and expand your Internet services.