Network security threats and solutions

Network security threats and solutions,Data theft,Smuggling of information,War of information,Flood of SYN,Death's Ping,Spoofing an IP address,Bombing by email.

Network security threats and solutions

Security Issues and Solutions in the Network Even if all security policies are followed, several security vulnerabilities can develop. This can result in data loss, network outage, or trafficking of your ebb. We've arrived to the portion when we'll discuss the middle ground.

Data theft

In most local area networks, this is the case. Important data can be stolen from your network by users or external cats on the network's edge. The digital data capability allows for easy copying while maintaining the integrity of the data. To prevent picture copying, disable portable or removable storage devices on various network workstations. The first step is to disable or lock all floppy drives on all workstations. The computer's bias can be used to deactivate the floppy drive, or the hardware lock can be employed. The usage of a hardware lock is convenient. If the administrator has the key, he or she can open it if necessary.

Smuggling of information

Employees in your organization may be able to pass on secret corporate information to competitors. It is not required that it be in digital format. Assume you're in the process of submitting a tender. If your opponent learns of the price you mentioned there, you may lose the tender. To smuggle this information, the user simply needs to glance at the file once and jot down or memorize the amount of money.

This type of data smuggling can't be stopped with software or hardware. You must rely on the staff's honesty for this. Bringing this level of honesty and fidelity can cause moral divides between them.

War of information

This is a different kind of network attack. In retaliation, someone could launch such an attack on your network. Assume I'm the network administrator for your company. For whatever reason, you've been hired to take my place. For the time being, I don't want you to be happy. Every day, I annoy you with a variety of attacks. You will be killed in two days if you are not informed of these attacks, and you will have to say your goodbyes. So, figure out what kind of attack you might face.

On the internet. Attacks on TCP/IP networks can be divided into two categories: denial of service and stealth attacks. The first sort of assault aims to disable your server or network, while the second type aims to obtain, modify, or delete information via breaking into the network. The following sections detail the numerous attacks against the TCP/IP network.

Flood of SYN

During the TCP / IP session, we learnt that during a connection utilizing TCP / IP, one computer sends a request to another computer. A link is created between them when the computer responds to the request. Before synchronization, these communications are known as SYN packets, which are synchronization messages. If a computer sends a SYN packet to a computer that does not have its own address, the target receiver computer will be unable to respond to the SYN packet once it is received. The receiving computer may go insane if the sender computer continues to send SYN packets in this manner. This is a case of SYN flooding. This attack has the potential to bring down any server or machine.

This attack can happen to you in real life. At the end of the day, you simply went to bed. The phone rang at that very moment. When I quickly took up the phone, there was no answer on the other end. The phone was turned off. It rang again, with the same quiet. What would you do if the phone continued to ring for several seconds? You can either pick up the phone receiver or tear it off with your mind. However, because the computer is unable of doing so, the corner eventually loses control owing to the weight of the SYN packet.

Many operating systems have been patched to prevent this exploit. To avoid such attacks, you must apply this patch.

Death's Ping

The ping program is used by TCP/IP to test connectivity with other hosts. This is a useful program for debugging TCP/IP networks. We transmit ICMP messages of a specific size to an IP address in the corner using Ping. When the communication reaches Hast, it receives a response.Ping of Death assaults use this ping mechanism. Ping messages are sent to the target computer by raising the size of the ping packet in this form of attack. A ping packet's maximum acceptable size is 65,536 bytes. A TCP / IP Haste becomes crippled when a large-sized corner packet hits it. Hopefully, fixes for many operating systems have been developed to avoid ping attacks. Using these patches, you can protect yourself from this assault.

Spoofing an IP address

One of the trademarks of smuggling is IP spoofing. The destination and source addresses are contained in each TCP packet header that flows in the TCP / IP protocol. Someone monitors the arrival and departure of each data packet in the network until the IP address of the IP packet sender is known in an IP spoofing attack. As a result, once the IP address of the machine is known in the firewall's inner corner, it becomes easier for the attacker to connect to it.

IP spoofing assaults result in unlawful information trafficking, making this a particularly dangerous attack for sensitive networks. IP spoofing can take place on practically any network. Using suitable firewalls and proxy servers can prevent this.

Bombing by email

If an attacker has your e-mail address, he can send thousands of emails at once. Your mail server may become unusable as a result of the volume of this message, or your mailbox quota may be exceeded. The mailbox will be unable to receive fresh mail after the quota has run out. It is not as lethal as other types of attacks. For such bombings, there are a variety of tools available on the internet.

If you don't respond quickly enough to such attacks, your network may be disrupted. As a result, you should examine the files and logs on a frequent basis to see if anything unusual is occurring.