When operating a website, knowing Who is accessing your system? is extremely important. Not only serving traffic analysis, IP address data also plays a big role in Website security and cyber attack prevention.

Through services IP Geolocation APIyou can determine the geographical location of visitors such as country, city, ISP, time zone… thereby detecting unusual behavior.

IP Geolocation API services like Abstract API, ipgeolocation and DB-IP Allows determining the geographical location of the IP address accessing the website. They help detect VPN, Proxy, TOR and support administrators in monitoring access, analyzing traffic or detecting sources of DDoS attacks.

For example, when the website crashes DDoS attackyou can trace the IP source of the attacker. Then send this information to ISP (Internet Service Provider) related to request blocking of malicious IP addresses.

However, those with experience will usually try bypass IP identification system using:

Therefore, modern IP Geolocation services all integrate additional capabilities detect VPN, Proxy and TOR to increase accuracy.

Here it is 3 popular IP location services that you can integrate into your website.

1. Abstract IP Geolocation API

AbstractIP is a service REST API Allows real-time IP location determination from both IPv4 and IPv6.

This API returns data as JSON and provides a lot of useful information such as:

• Country code
• National flag
• City
• ZIP code/postal code
• Time zone
• ISP
• Connection type

Abstract’s database is okay Updated daily through data sources from ISPs and network providers.

Limited free plan

• 20,000 requests / month
• Maximum 1 request/second
• Supports IPv4 & IPv6

Additionally, the Abstract API has capabilities detect users using VPN, Proxy or TOR when accessing your website.

API integration is quite simple: just register an account, get an API key and follow the documentation to deploy.

2. ipgeolocation.io

ipgeolocation.io is one of the services IP Location API Popular for developers and system administrators.

This service provides many detailed information about visitors such as:

• National flag and country name
• Latitude and longitude
• Money
• ASN (Autonomous System Number)
• ISP
• Time zone

Limited free plan

• 30,000 requests / month
• Maximum 1,000 requests/day

The strength of ipgeolocation is its capabilities detect VPN, TOR and Proxyhelps increase efficiency in access control.

This service also supports integration with many backend platforms such as:

3. DB-IP

DB-IP is service IP Geolocation Database & RESTful API provides IP location data with quite high accuracy.

Information that DB-IP can provide includes:

• Nation
• Language
• Money
• Country phone code
• ISP
• Time zone

This service is available 3 paid plans and unfortunately There is no free plan.

Expense

• From approx 217,000 VND / month
• 2,000 – 50,000 requests / day

You can too 7 day trial. If it’s not suitable, you can cancel and get a refund.

If you need a stable service and large database, DB-IP is an option worth considering.

Quickly compare IP Geolocation services

Common errors when using IP Geolocation

• The IP location is incorrect because the ISP uses NAT
• Users use VPN or TOR
• Database IP has not been updated
• Server caches old data

So IP Geolocation data should be considered reference information not the absolute exact location.

Actual use-case for the website

• Detect abnormal traffic
• Block IP by country
• Detect bots and crawlers
• Analyze users by region
• Personalize content by location

FAQ – Frequently asked questions

Does IP Geolocation accurately determine user location?

Not quite. IP Geolocation only determines approximate location based on ISP data and IP database.

Is it possible to detect users using VPN?

Many IP Geolocation services today are capable of detecting VPNs, Proxies and TORs with relative accuracy.

Should I build my own IP database?

It is usually recommended to use APIs from professional services because the IP database changes constantly and needs to be updated regularly.

Does IP Geolocation help prevent DDoS?

It does not directly prevent DDoS but helps you identify the source of the attack IP to apply blocking or filtering measures.

Checklist when choosing IP Geolocation service

• Choose an API with a regularly updated database
• Supports VPN/Proxy/TOR detection
• There is a request limit appropriate to website traffic
• Fast API speed
• There is clear documentation

Conclude

Services Determine IP location (IP Geolocation) like Abstract API, ipgeolocation and DB-IP all help website administrators track access sources and improve security.

Depending on your needs, you can start with these Free package Or choose paid services to have a more accurate and stable database.

Explore now cHow to transfer music from other services to Apple Music and say goodbye to the hassle of having to recreate playlists from scratch. Apple has listened to users and launched a built-in conversion tool, making the process of transferring music from Spotify or other services smoother and more convenient.

Apple Music releases global music transfer tool

After a long period of testing and a limited rollout in a few countries, Apple has finally released its global music transfer tool. This is good news for those who want to “move house”. Apple Music but don’t want to waste time rebuilding the library from scratch. The tool is now available in most countries, except China, Myanmar and Russia, opening a new chapter for music experiences.

Necessary conditions to start conversion

To use this feature, the most important requirement is that you must have an active Apple Music subscription account. If you don’t have one, you can register for 65,000 VND/month and enjoy a completely free trial month to experience before deciding to stick with it long-term.

How to transfer music from another service to Apple Music

On the phone

This tool works smoothly on both popular mobile operating systems: iOS and Android. The steps are a little different at the beginning.

For iPhone or iPad users:

1. First, you need to access the item Setting on your device.
2. Next, scroll down and find Application > Select Music.
3. Here, you will see options Transfer Music from Other Music Services (Transfer music from other music services).

For Android device users:

First of all, you need to open the Apple Music application installed on your device.

1. Then you click More and select item Settings.
2. Similar to iOS, you will find the text Transfer Music from Other Music Services.

Next steps for both platforms:

1. After clicking on the music transfer option, a list of supported services will appear. Select the platform you want to move to (for example, Spotify) and log in to that account.
2. The system will let you select the specific content you want to transfer, including saved songs and personal playlists.
3. Finally, you just need to press Add to Library (Add to library) and wait. This is the most important step in the process of transferring music from another service to Apple Music.

On the web browser

If you are using a computer, the conversion process is also extremely convenient through a web browser.

1. Please visit the address music.apple.com.
2. Next, you click the button Sign In and sign in with the Apple account you use for the Apple Music service.
3. After successfully logging in, click on your avatar or the first letter of your name in the upper right corner of the screen.
4. In the drop-down menu, you select the item Transfer Music (Switch music).
5. The interface will display supported services, you just need to select the source service and log in.
6. Select the content you want to bring over and click Add to Library.
7. Track and complete the conversion process

After you initiate the request, Apple Music will begin the process of scanning and comparing songs from the old service with its vast music store. When the process finishes, you will receive one of the following two messages:

• Transfer Complete: This message means that Apple Music has found all the corresponding tracks and has successfully added them to your library.
• Some Music Needs Review (Some songs need to review): This happens when Apple Music can’t find an exact match but has found alternative versions (for example, remixes, live versions, or other albums). You need to click Review Now, select the most suitable version and click Save to complete.

Important notes you need to know

• Apple allows users 30 days from the initial transfer to review and select alternative versions for unmatched songs.
• This tool only supports transferring playlists you create yourself. Playlists pre-edited by the old platform (like Spotify’s “Discover Weekly”) will not be carried over.
• Make sure you clearly understand how to transfer music from another service to Apple Music so the process goes smoothly and avoids unnecessary mistakes.

Conclusion

With this new tool, switching to Apple Music is no longer a barrier. Now you can easily carry your entire world of music without worrying about losing it. Try it now How to transfer music from another service to Apple Music to experience the convenience and seamlessness that Apple brings!

In this article, we will learn about network protocols and services. At the heart of the Internet, every ethical hacker must understand common network protocols to be able to understand the architecture of computers.

One of the most important skills to become an ethical hacker is the skill of networking. A computer cannot be without a connection, so hackers are also important. It is important to have network knowledge to get used to the new architecture.

Knowledge of network protocols and services

SMTP

SMTP, short for (simple message transfer protocol), is an email protocol used to send email messages. Defined as RFC 5321, it is the heart of the mail connection. SMTP is much older than HTTP, but it is still used by ordinary users. To support email services, a pair of protocols is required, including SMTP and POP/IMAP.

SMTP uses three basic functions:

1. It verifies who is sending emails through the SMTP server.
2. It also sends out emails.
3. When a message cannot be delivered to the recipient, the message will be sent back to the sender.

POP/IMAP

POP, or “Post Office Protocol” and IMAP, “Internet Message Access Protocol”. These protocols are very important, to send a message to the recipient, it uses IMAP which is responsible for transferring emails between the server and the client.

The main difference between POP and IMAP, POP is a simple approach to downloading messages in the inbox. Where IMAP will sync the current inbox, with new messages on the server, downloading anything new.

How does SMTP work?

Once an SMTP server is set up, email applications can connect and communicate with it. When the user presses “send” on an email, the email client opens an SMTP connection to the server so it can send. The role of the SMTP server in this service, is to act as sorting office, email (mail) is picked up and sent to this server, and then delivers it to the recipient.

SMTP operates in an application layer protocol (Application).

SMB

SMB, abbreviation for (server message block protocol). This protocol is a client-server protocol used to share and transfer data as well as access files.

The server can be accessed to view files, APIs, printers, and other resources.

This protocol is also known as request-response protocol which means it transmits data/messages between the client and the server.

SMB works in class Application or class Presentation.

Once you have established a connection with the SMB protocol, you can view, transfer, and get resources from that server.

It also asks for login information, if the user has set a password on it.

The birth of SMB

Since the introduction of Windows 95 Operating Systems in early 1995, they have included support for the client and server SMB protocol known as “SAMBA”. It runs on UNIX systems.

SMB works in class Application or class Presentation.

TELNET

Telnet, short for (teletype network protocol) insecure version of SSH, telnet is a protocol that allows you to make a connection to a server and execute commands, which is the telnet host. When you establish a connection to Telnet, the client then becomes a virtual terminal – allowing you to interact with the remote server.

Telnet is replaced

Telnet is rarely used by companies, for security reasons. Most companies have been using SSH (secure shell host) because it shows up when you enter your login information. It has now been replaced by SSH.

How does Telnet work?

Connecting to a Telnet server is easy. “Telnet [ip] [port]” is enough to be able to connect to the Telnet server.

FTP

FTP, short for (file transfer protocol), it allows you to transfer files to this service remotely. It uses a client-server model.

How does FTP work?

FTP works in two ways:

1. Command channel
2. Data channel.

Command channel → Command channel is used to transmit commands as well as respond to those commands

Data channel → data channel is used to transmit data.

Security researchers always recommend not using port 21 (FTP) for security reasons.

Once the service is open, you can create a connection between the client and the server.

Active/Passive

FTP servers can operate either actively or passively.

1. Proactive FTP server, connecting to random port numbers for incoming connections.
2. Passive FTP server, opens a connection to a specific port and IP address for passive listening and clients connecting to it.

DNS

DNS, short for (domain name system). This service provides us with a simple way to communicate with devices on the internet without having to remember complicated numbers and values.

For example: https://www.google.com corresponds to “172.217.169.174”

Subdomain

A subdomain is an additional part of the main domain. Subdomains are created to organize and manage different sections of your website, for example:

For example:

admin.example.com → subdomain,

example.com → main domain

DNS is an application layer protocol.

SSH

Secure Shell (SSH) is a network security protocol that uses encryption and authentication mechanisms to implement services such as secure access and file transfer. The initial version, SSH1 focused on providing a secure remote login facility to replace TELNET and other remote login programs that were not secure. SSH also provides more general client-server capabilities and can be used for such network functions.

It is much more secure than TELNET, as it uses encryption and authentication to gain access to the server.

TLS

Server authentication occurs at the transport layer, based on the server possessing the public/private key pair

Transport Layer Secure

How does SSH work?

SSH is easy to use:

ssh [user]@ip-addr/localhost

SSH is an application layer protocol.

ARP

ARP, abbreviation for (address resolution protocol). This protocol is responsible for allowing devices to identify themselves on the network. This is one of the most important protocols in the network layer.

How ARP works

ARP has an important ledger in the network to store information, called a “cache”.

It works with MAC and IP addresses. ARP sends two types of messages.

1. ARP requests
2. ARP replies

ARP requests

When an ARP request is sent, a message is transmitted to every device found by the device on the network. This is nothing more than broadcasting a packet over the network to confirm whether we found the destination MAC address or not.

ARP replies

An ARP response is returned to the originating device to confirm this. MAC address feedback supports data communication.

ARP is in layer 2 protocol.

DHCP

DHCP, short for (Dynamic Host Configuration Protocol) helps a device want to connect to the network. if it has not been manually assigned an IP.

DHCP is based on the client-server model and is based on discovery, offer, request, and ACK.

DHCP sends a request called (DHCP discover) to see if there is a DHCP server on the network. When a DHCP client starts, it automatically sends a special DHCP discover message using the broadcast address. This DHCP discover message asks, “are there any DHCP servers out there”?

DHCP is an application layer protocol

MAC

MAC, short for (media access control). A MAC address is a unique identifier assigned to a piece of networking hardware by the manufacturer.

MAC address consists of six sets of two characters such as 00:12:ED:4B:16:5E. Do you want to see your NIC? If you are using a windows operating system, enter “ipconfig \ all” from the command prompt to display the actual address.

MAC addresses are at layer 2 (data link).

ICMP

ICMP, short for (Internet Control Message Protocol) is one of the most important fundamentals in networking, because no ICMP means no response and that means no connection. Most of the time when you type “ping google.com” you will see TTL (time to live) which means ICMP packets travel as measured by ping, say your home network or the website you want to visit. access.

The easiest way to see ICMP on a network is to use ping and traceroute, but traceroute will also be used to analyze data flowing from its source to its destination address.

As shown in the image above, ttl is 112.

ICMP is shown as a layer 3 protocol.

NAT

NAT, short for (network address translation), originally used to solve the shortage of IPv4 addresses, is now used to mask public IPv4 addresses. To access the Internet, a public IP address is needed, but we can use a private IP address in our private network. The idea of ​​NAT is to allow multiple devices to access the Internet through a single public address.

With NAT, a network can support more than 500 servers with private addresses, and a NAT router can switch these machines to the public address range when clients need to access the internet.

NAT is located at layer 3.

IP

IP, short for (Internet Protocol). Its main job is just to send messages between devices, and like any mailing service, it can’t do its job well if it doesn’t know where the recipient is. such as sending mail, streaming video, or connecting to a website.

For example:

Public IP -> 172.168.16.44

private IP -> 192.168.23.2

IP is in the network layer.

What is SEO service?

To know what SEO services are, you need to learn what SEO is. SEO is an acronym for Search Engine Optimization, this is a tool to help optimize search engines and become a website optimization solution. SEO helps to increase website rankings on these search engines.

SEO service is a service provided by an SEO company or SEO specialist with the aim of optimizing the customer’s website on the search engines. This helps to improve online brand presence as well as increase website traffic and revenue.

Benefits that SEO services bring

Did you know that SEO services bring a lot of benefits to businesses. Specifically, in this section, we will send you 4 benefits of SEO services for your business:

Increase brand awareness

If your website is SEO optimized with attractive content, it will be highly appreciated by search engines and internet users. Also from there, your website will be able to be in the first search results positions. However, designing a standard SEO website is not an easy thing, nor is it enough to just design it once. You need to constantly update and improve because your competitors are also constantly improving their website rankings.

Help the website get quality traffic

Users will stay on your website longer and website visits increase over time as your website meets the information and products that people need. Besides, the content of the attractive website also helps users to be interested and refer to other information on your website. They may even become one of your potential customers

Improve ROI

As you know, the better the website is optimized for SEO, the more revenue it generates for businesses. The more optimized your website is, the higher the ROI. ROI is the ratio of your return on your investment.

Cost savings

Compared to SEM, SEO has a lower investment cost but helps bring higher efficiency. To make it easy to understand, you can imagine that you will have to pay $ 1 for a click on the website, if there are 200 clicks / day, you will need to spend $ 6000 / month (equivalent to about 140 million VND). If the customer is the one making those clicks, the higher the ROI will be.

Therefore, besides using SEM, you need to optimize SEO effectively to reach more potential customers for your business.

What are the reasons that your business needs to perform SEO services?

Currently, the Internet is one of the great tools to help customers quickly access your products or services. Therefore, you need to carry out overall SEO services for your website to appear on the first search page of users. From there, users will choose to click to help increase visits and ROI.

Types of SEO services on the market

SEO services today have many types from many different providers. The most prominent can be mentioned the following 4 basic types of SEO services:

SEO Audit Service

With this SEO service, the service provider will make an SEO strategy based on the results of analyzing the business situation of the business on the Internet as well as the content and quality of the products/services you provide. From there will come up with ideas for SEO strategies to increase the searchability of customers as well as increase the website’s ranking on the search page.

Keyword SEO Services

Keyword SEO Services is a service that helps SEO keywords of businesses be put on the top of the search pages. Companies that receive SEO keywords will support SEO to the top 1, 3, 5, 10.

Overall Website SEO Services

Overall Website SEO service is one of the strategies to help maintain rankings as well as increase the competitiveness of businesses compared to competitors. The overall SEO service works with the form of “overlaying TOP” with keywords that compete with niche keywords on Google. From there, businesses can increase traffic as well as increase the credibility of the website.

SEO traffic service

The last SEO service that we want to introduce to you is SEO traffic service. This is a relatively new service, but it offers a very high ability to build and maintain a brand. Because SEO traffic does not focus on the top rankings, but mainly attracts Internet users to visit the website thanks to Organic Search searches.

Things businesses need to know before implementing SEO Website services for projects

SEO Web services play an important role in helping your website increase Google rankings. To be able to use reputable and effective SEO services, here are 3 things that PRO SEO want you to know before doing:

Quality Access

Traffic, also known as visits, is an important factor to know if SEO Website services are successful or not. Quality visits are visits from potential customers who are interested in the products/services your business offers. These users will be the ones who actively search for the product information they need on Google.

The number of accesses

Once your website has quality traffic from potential customers, the next thing you need to do is optimize traffic. The number of visitors or the number of users visiting the website will be proportional to the revenue that the website brings. Therefore, SEO Web services become one of the marketing strategies, helping to increase revenue for businesses effectively and quickly.

Natural search results

Did you know that there are two types of search results in search results, including SEM (advertising results with the symbol: AD or QC at the top of the search results) and SEO (the natural search results). So, the organic search result of SEO is the number of natural website visitors without any cost to you to entice them to your website.

Above is all the answer information SEO services What is and what you need to know before performing SEO services for your website. If you want to find for your business professional, reputable and quality SEO services, you can leave the information below for specific advice and exactly the right service for your website!