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What Is Denial Of Service Attacks?
What Is Denial of Service Attacks? Denial service attack (DoS): DoS is the kind of cybersecurity attack in which the malicious actor goals to exhibit the computer or other unavailable devices to its planned users by disrupting the normal functioning of the device. It is the scheme to overburden theRead more
What Is Denial of Service Attacks?
Denial service attack (DoS):
DoS is the kind of cybersecurity attack in which the malicious actor goals to exhibit the computer or other unavailable devices to its planned users by disrupting the normal functioning of the device. It is the scheme to overburden the machine or the network to make it unavailable. In the service denial of use attack, a single computer is the origin of the attack. Daniel’s service of the attack sends more traffic to the target making it unavailable service to normal users. The target examples include websites, online banking, email, or any other service that depends on the target computer or network.
Different types:
There are various types of the denial service of attack like as,
Flood attacks:
In a flood attack, DoS send the extended or maximum number of packets that surpass the capacity of the server. In a flood attack, a malicious actor can overfill the capacity. Most the denial service of flood attack is successful because the malicious actor has more bandwidth in comparison to the target.
Resource exhaustion:
In resource exhaustion, it targets the framework to utilize all the storage and memory, which results in slow performance or might be possible to stop all the functions together in the device. It is also called buffer overflow in which a machine uses all the storage available in the CPU, memory, and hard disk space. It results in system crashes and inactive behavior.
Distributed denial service of attack (DDoS):
DDoS is the type of denial service of attack it comes from various distributed sources such as botnet DDoS attacks. In this type of attack, the traffic is used to come from different distributed sources to overwhelm the target. By blocking the traffic source, it will not stop the attack.
See lessWhat Does It Mean To Get Doxxed?
What Does It Mean to Get Doxxed? Doxing: Doxing or also spelled as doxxing is the act of publicly showing private personal information of an individual or an organization through the internet. Methods used to obtain this information is the social media website like Facebook, databases, social engineRead more
What Does It Mean to Get Doxxed?
Doxing:
Doxing or also spelled as doxxing is the act of publicly showing private personal information of an individual or an organization through the internet. Methods used to obtain this information is the social media website like Facebook, databases, social engineering, hacking, and website like Grabify this site is famous show the internet protocol addressed by false links. It might be carried out due to some reasons like extortion, or online shaming or it is also linked with the hacking system.
It is the type of cyberbullying use the records, personal information, and statements for harassment to cause financial harm. Simply by doxing it reveals someone’s secret information on the internet publicly. Hackers exposed the other attackers who are hiding behind fake names due to competition.
Working:
Track username:
Most people use the same username on different accounts for various websites.it is very easy for attackers to use the username. Data from these accounts are compiled in the portfolio document that shows your information.
Phishing:
In phishing someone hacked your email they can easily use your account for doxing or hacking your information. Phishing occurred you click on the false website link or attachment and enter your information on the website.
Track IP address:
Doxers can figure out your IP address and use the fact to know where your physical location is to execute an attack. For example, they access your ISP (internet service provider) and act to be you obtain information about you by asking questions.
Data broker:
Data brokers collect information and sell it to others for profit. They collect goal data through social websites. It also includes the loyalty card website that tracks your habits and searches history for gathered information. It is the business to sell data for profit. Sometimes brokers purchase data from others and sell it on the dark web.
Doxers looking for:
Doxers looking for some important information like,
Protection:
These are some preventive measures for not to being doxed,
- Use VPN
- Strong password
- Update privacy setting
- Away from a phishing email
- Separate email accounts for a different purposes
- Careful about app permission
- Protect financial account.
See lessWhat Is The Dark Web Used For?
What Is the Dark Web Used For? The Internet has changed in many aspects as in 1990 the most controversial development is the progress of the Dark Web. Adults are worried about young people using the Dark Web for illegal activity. There is a positive effect of this feature is that people don't need tRead more
What Is the Dark Web Used For?
The Internet has changed in many aspects as in 1990 the most controversial development is the progress of the Dark Web. Adults are worried about young people using the Dark Web for illegal activity. There is a positive effect of this feature is that people don’t need to go out shopping, they can do everything using this technology.
Dark Web:
Through the computer or by using a device has a unique online identity like an Internet Protocol address. IP addresses assist the network to send information to the right place. The dark web uses a complex system that unnamed the true IP address of the user. It makes it very difficult to know which websites are visited by devices. There are three main reasons Dark Web is used by people,
Anonymization:
In this world, people have so many reasons to hide and protect their identity. It might be possible if their identity is exposed it caused many problems for example in countries in which political censorship exists or where it bans the free press. The dark web is used by those people that want to reduce the risk to fall victim to crime, for example, people who have been stalked or those who are worried about online banking security. Tor is mostly used by people that search the open web unsafely, a small percentage of the traffic used Dark Web relate to hidden service.
Access to the hidden service:
Onion service or the hidden service is one in which the not only website but also the user is protected by Tor. It means that the information about the host like location or its content is hidden the internet protocol address is unidentified. It is called an onion service because the name of the website ends at the onion.
Tor itself is not a hidden service, but the sites it hosts are hidden services. It is used legally for example most people share their personal information or information about crimes without the risk of counterattack. Some hidden service has illegal activities, mostly they require registration (provide a username, and address) and VIP sections which are accessible only by the member-made application and approved by the administration.
Illegal activity:
The dark web is used for illegal activities such as selling drugs, weapons, personal information, bank details, credit card details, fake passports, Netflix accounts, and many more.
See lessWhat Do Viruses Do To Your Phone?
What Do Viruses Do to Your Phone? The same way a virus gets into the computer the phone gets a virus. The common way to get devices infected by viruses is by clicking on the attachments or links from unknown sources. These links are present either in emails, social media messages, or text messages.Read more
What Do Viruses Do to Your Phone?
The same way a virus gets into the computer the phone gets a virus. The common way to get devices infected by viruses is by clicking on the attachments or links from unknown sources. These links are present either in emails, social media messages, or text messages. Browsing and going to malicious websites and downloading the attachments from unprotected applications are also the source of viruses. There are some signs that show you get a virus.
If you get a virus, you noticed some change like when you try to open the app phone speed slow down, some apps behave suspiciously, and more ads appear even if those ads are not related to the browsing history. Performance and behavior changes show that the phone gets a virus. Firstly, start searching the text history if some unknown messages send it means they could be sent by a virus. If your data usage is increased for no reason. The virus that runs the app causes the battery low and increases data usage.
Types of viruses:
These are some common viruses a phone can get,
Common signs of virus:
Sometimes after taking preventive steps phone can get a virus, or be infected with malware.
Invasive advertisements:
Excessive ads show that your phone may get a virus. It will infect the device with an insecure code.
Unexpected charges:
Some applications make money by sending text messages or calls using your phone. Unexpected charges appear on your phone bill.
Poor performance:
The system slows down when you try opening an app or browsing.
Receive strange messages:
Viruses such as malware use your device to send junk mail, it will infect your contacts.
Data usage:
Malicious application your internet service for receiving and sending messages and also used apps. It will cause an increase in the data consumption of your phone.
Reduction in battery life:
Poor battery life means you are using badly written apps. It also means that might be possible phone gets a virus. These viruses use unexpected programs without any reasonable cause to slow down the performance or the battery life of the device.
New apps:
Some new apps appear to download on the device these app contains malware. This unexpected downloading shows that the phone gets a virus.
See lessA Workstation Is Out Of Compliance What Command Prompt?
A Workstation Is Out of Compliance What Command Prompt? Answer: gpconfiguration gpupdate/ force policy update/ force reset session, session number option B is correct. When the workstation is out of compliance the command prompt required is gpupdate/ force. Gpupdate is the group policy update. For aRead more
A Workstation Is Out of Compliance What Command Prompt?
Answer:
option B is correct. When the workstation is out of compliance the command prompt required is gpupdate/ force. Gpupdate is the group policy update. For all the policies that are up to date the command prompt is used in the group policy update. It actually works go to the command window type gpupdate/ force press enter for confirmation. By doing this we make sure that all the policies are up to date and the workstation has enough assent it prevents threats or security risks.
Forcing group policy update:
For example, your phone is managed by a security specialist who claims to add an additional proxy server to allow users to access the Internet. By using this new proxy server through internet explorer, you add a new GPO. New GPO to be applied take time between 90 to 120 minutes. You need to add a new setting that does not tell the users to log off and back to apply them. In a situation like this, you want to overcome the time before the processing background policy kicks in. you can do this all by using the command prompt.
Group policy update using command prompt:
The first option is to run a simple command to tell the users to skip the processing time update or change the GPOs from the server. So, you are physically run out from the user’s machine enter the group update command it will refresh the policies and change the GPO manually.
The gpupdate command will refresh both the user and the group policy object if it is used without parameters. If you want to update one half, use this syntax gpupdate: computer, /target: user.
Many options are available with the group policy update,
/Logoff:
After updating Group Policy, log off the user.
/Sync:
Change the startup processing to in arrange.
/Boot:
After the group policy is applied restart the machine.
See lessWhat Is Run Level In Linux?
What Is Run Level in Linux? Run level: On the Unix and Unix-based operating systems run level is an operating state that is present on the Linux-based system. The numbers of Run levels are from 0 to six. After the OS speed up the Run, the level decides which programs can work. It also describes theRead more
What Is Run Level in Linux?
Run level:
On the Unix and Unix-based operating systems run level is an operating state that is present on the Linux-based system. The numbers of Run levels are from 0 to six. After the OS speed up the Run, the level decides which programs can work. It also describes the condition of the machine after the boots.
According to the need of the system administrators, they set the default run level system in this way they find out the current machine run level for the access to the system. For example, system network is operational or not is also described by the run level. By using the run level command easily know about the previous or current run level of the system.
The six levels of the run levels from 0 to six work in the single-user mode or in the multi-user mode, when the network service is not operable the system shutdown needs to restart. The system layout is different between the Unix versions and Linux distros.
Each run level has a specific number and purpose. 0,1 and 6 run levels are the same but the run levels from 2 to 5 are different, they depend on the Linux distribution. When the system startup only runs level 1 is executed. All the run levels were never implemented in sequence. For example, run level 4 or 5 or 6 did not run first 4, then 5, then 6 in order.
Users can also able to modify the previous run levels and made a new one. User-definable run level is 4 run level.
See lessWhat Is a Port In Networking?
What Is a Port in Networking? Port number: Ports numbers are systematized across the network-connected devices each port is assigned a specific number. Most ports are limited to certain protocols, for example, HTTP (Hypertext Transfer Protocol) messages go to port number 80. Using a specific port nuRead more
What Is a Port in Networking?
Port number:
Ports numbers are systematized across the network-connected devices each port is assigned a specific number. Most ports are limited to certain protocols, for example, HTTP (Hypertext Transfer Protocol) messages go to port number 80. Using a specific port number allows targeting of specific apps or services to devices. Internet protocol enables one to go to and from messages from specific devices.
Computer port:
Computer port number has three main uses in the network, software, and computer hardware.
Computer network port:
A computer network port such as a single physical connection handles various outgoing and incoming requests by assigning different numbers to the port. Port numbers range from 0 to 65535, these are 16-bit numbers Some port numbers are specifically defined as relating to a specific service. For example, port number 21 is related to the File Transfer Protocol (FTP), and port number 80 is specific to the Hypertext Transfer Protocol (HTTP). These specific ports have numbers between 0 to 1023.
Registered ports are 1024 to 49151 used for specific purposes registered with the Internet Assigned Numbers Authority. The dynamic, ephemeral, and private ports are used for any type of purpose the numbers start from 1024 to 49151.
Ports make network connections efficiently:
On the same network different types of data flow to and from the computer, and ports assist the computers how to handle the data they received. For example, Alice uses the FTP to send an mp3 recording to Bob. If Bob’s computer sends this file to the email application but does not know what to do. But Alice uses port number 21 that is because Bob’s computer received the file and store it. Meanwhile, on the same Wifi connection, Bob’s computer simultaneously uses HTTP port number 80 both the webpage file and MP3 file flow to Bob’s computer.
See lessWhat Is a Dns Srv Record?
What Is a DNS Srv Record? The SRV record is a DNS (Domain Name System) resource record. SRV record is used to recognize the specific hosting service by computers, for example, the location, hostname, and port numbers of servers for the service. It is also used to locate the controller of the domainRead more
What Is a DNS Srv Record?
The SRV record is a DNS (Domain Name System) resource record. SRV record is used to recognize the specific hosting service by computers, for example, the location, hostname, and port numbers of servers for the service. It is also used to locate the controller of the domain for the active directory. Internet protocol such as the (XMPP) Extensible Messaging and Presence Protocol and (SIP) session initiation protocol needs SRV support by network elements.
Components:
The components of the DNS SRV record are as follows.
Port: The SRV record in DNS has the following format,
Ports on the network are the actual places that decide which processes on the computer are executed by the traffic network. With the ports, computers are able to differentiate between the different types of traffic. Same as an internet protocol address each port is assigned a specific number. Some protocols like XMPP, SIP, and IMAP link to the particular port along with the specific service server. Within the DNS how ports are specified is discussed by SRV records.
Format record:
_service._proto.name. TTL class type of the recording priority weight target port. In this format, the terms are following,
- Service: the name of the desired service.
- Proto: TP (transport protocol) of the desired service either UDP or TCP.
- Name: a domain name
- TTL: standard domain time to live field
- SRV: record type
- Priority: preference of the target host, a low value is more preferred
- Wight: In the same priority it is the relative weight of the record the chance of getting picked is greater for the higher values.
- Port: the port where the service is found such as TCP and UDP.
- Target: the machine provides the service its hostname.
See lessWhat Is a Good Cpu Temp Celsius?
What Is a Good CPU Temp Celsius? In the personal computer, the central processing unit best performs based on the optimal temperature of the CPU. When the workload is light, the CPU runs at a low temperature, when the workload starts to increase, its temperature also increases. The components or theRead more
What Is a Good CPU Temp Celsius?
In the personal computer, the central processing unit best performs based on the optimal temperature of the CPU. When the workload is light, the CPU runs at a low temperature, when the workload starts to increase, its temperature also increases.
The components or the performance of the central processing unit affected is affected when the temperature is too high. Advanced technologies made the thermal protection program in the system it will cool the CPU if it gets too hot. Sometimes high temperature of the CPU causes the PC to shut down. If the CPU temperature is constantly high, it will cause system parts.
The optimal range of temperature is between 150 and 160 degrees or on a Fahrenheit scale (65 to 70 degrees Celsius). This temperature is for when the PC runs important apps when someone plays games on the PC or uses software temperature increases to 175-degree Fahrenheit or 80 degrees Celsius. Different central processing units have different tolerance levels.
The optimal temperature for laptops is 160 to 170 degrees Fahrenheit or in degrees Celsius 71 to 80 degrees. Because it is tightly packed and airflow is less it operates at high temperatures than the PCs. Laptop temperature increases quickly when the games are playing at 190 degrees Fahrenheit or in degrees Celsius 88.
Reasons for heating:
There are many reasons the CPU overheat,
Things to do when the temperature is too high:
There is any course of action to reduce the high temperature such as,
- Check the proper functioning of the CPU fan
- Is the CPU being clean for dust
- Sufficient airflow is required to clean dust
- Increase the airflow by adding more fans that release the warm air and intake the fresher air.
- Replace the Old CPU with the big one having enough fans and liquid coolers.
- Check the time when you have applied the thermal paste between the CPU or CPU cooler, if three years passed then apply the thermal paste.
See lessWhat Is a Remote Access Code?
What Is a Remote Access Code? Remote access is very common in cyber criminals who use remote access to steal important information, and industries. For running a business securely, you need to have the first layer of security that protects and avoids unwanted access to the system. For security, a reRead more
What Is a Remote Access Code?
Remote access is very common in cyber criminals who use remote access to steal important information, and industries. For running a business securely, you need to have the first layer of security that protects and avoids unwanted access to the system. For security, a remote access code is required. With the help of a remote access code, you will be able to reduce the risk of a security attack.
Remote Access Code:
A remote access code is either the code or the password that the users need to enter for access to the private network system. It is the way of verification either it gives access or blocks access by entering a unit system. This technology is very important in the business it acts as a security layer that avoids attackers to access the network or server.
In the remote access software, this code is present. If the users need to connect to the remote computers, they only access it if they enter these login credentials. This technology is used in the remote access software to ensure the verification of all the access on the specific devices.
For example, if you go on a vacation and someone left a message on your home number, you must enter the remote access code to access the messages sent to you.
Importance:
The major benefits of using the remote access code are to reduce the risk of attack on private devices, either on the business level or household level. This avoids unwanted attack that tries to steal sensitive information stored in the devices. There are many ways to secure the remote access code some are as follows,
Code must long:
The remote access code is long the longer the code the better the security. Attackers find it difficult for guessing or decoding your code when it is complex or long.
Illogical code:
Never use common phrases or common words it’s very easy to guess. Always the illogical and gibberish words. In this way attackers have a hard time breaking into the system.
Use special characters and numbers:
To make a strong password always use special characters and numbers in the code. The main aim of doing this is to make passwords strong and complex.
Update code:
Remote access code update regularly does not use the same code for a lifetime. By doing this you avoid the habit of saving passwords and constantly access to the system.
See less