Establishing public internet access in libraries is a complex engineering challenge that requires balancing user convenience with strict network security. Unlike a home router, where access is open to all devices within the home, a library network must identify each user to comply with legal regulations and prevent cyberattacks. Modern systems allow for flexible login scenarios adapted to various types of institutions, from small rural branches to large regional centers.
Implementing the right system authorization helps administrators control traffic, restrict access to restricted resources, and collect traffic analytics. Without a reliable gateway, known as Captive Portal, the network becomes vulnerable to attackers who can exploit an open communication channel for illegal activities. This is why choosing an access method is the first and most critical step in designing a library's IT infrastructure.
There are many technical solutions, each with its own advantages and disadvantages. The choice of a specific option depends on the institution's budget, the availability of IT specialists, and user authentication requirements. In this article, we will examine in detail the main methods for ensuring secure and convenient access to digital resources.
Authorization via SMS messages and phone number
One of the most popular methods in public places is logging in using a mobile phone number. The user connects to the public network and is then automatically redirected to a login page that asks for a phone number. A password is sent to the device. SMS code, which must be entered to gain access. This method ensures a high level of identification, as SIM cards are registered to the owner's passport information.
The main advantage of this approach is its simplicity for the end user. They don't need to remember complex passwords or register with additional systems. However, this method can be costly for the library, as sending SMS is often a paid service from the gateway provider. Furthermore, it requires a stable connection to external SMS gateways, whose failure could paralyze visitors' access.
When setting up this method it is important to consider legislative requirements for log storage, as linking a session to a phone number allows for precise user identification if necessary. Administrators can flexibly configure session duration and traffic volume. For example, access can be granted for two hours with the option to extend.
⚠️ Attention: When using SMS authentication, be sure to check your gateway's rates. During peak hours, when the library is busy, the cost of sending codes can increase significantly.
Technical implementation requires installing specialized software on the authorization server or using cloud services. Configuration is typically performed through the wireless network controller's web interface. Message templates and firewall rules must be configured to allow traffic only after successful code verification.
Using vouchers and guest passwords
The voucher method is ideal for libraries that require strictly limited access or where not all patrons have mobile phones. An administrator or librarian generates unique access codes that are issued to patrons. These codes can be one-time use or have a limited validity period. This approach is often used in school libraries or at events.
The voucher system allows you to create different access profiles. For example, you can issue a code to a student for high-speed access to scientific databases, while another visitor can receive a code with limited bandwidth for viewing news. Generation occurs in the network equipment control panel, where you can create hundreds of codes and even print them as cards.
The security of the vouchers themselves is crucial. If the codes are too simple or easy to guess, unauthorized users can gain access to the network. It is recommended to use complex generation algorithms and regularly rotate the pools of available codes. The system should also automatically block the voucher after its expiration date.
- 🎫 One-time codes: are valid for one session only and expire after the user logs off the network.
- ⏳ Temporary access: active for a certain period of time (e.g. 24 hours) regardless of the number of connections.
- 📉 Limited traffic: access is terminated after the allocated data volume (for example, 500 MB) is exhausted.
Integration with the reader database
For large library systems, the most effective solution is to integrate the Wi-Fi gateway with the existing library database. In this case, users log in using their library card and personal account password. This creates a unified digital environment and increases user loyalty.
This integration requires protocol configuration. RADIUS or using an API to communicate between network equipment and the library server. This allows for automatic blocking of access for users whose library cards have expired or are in arrears. Administrators don't need to manually manage the list of allowed users.
Technical requirements for integration
For successful integration, you need a server with LDAP or SQL query support, as well as network equipment (MikroTik, Ubiquiti, Cisco access points) capable of working with external authorization databases.
The advantage of this method is personalized access. The system can remember user preferences and provide access to paid library electronic resources immediately upon login. However, implementing this scenario requires qualified IT specialists and thorough testing to ensure that database errors don't block access for all visitors.
It is necessary to ensure a secure connection between access points and the authorization server so that reader logins and passwords are not transmitted in cleartext. Encryption is typically used for this purpose. TLS/SSL.
Social networks and social logins
A modern and convenient method that is gaining popularity in youth spaces and library coworking spaces. Users are prompted to log in using their VKontakte, Odnoklassniki, or other social media accounts. This eliminates the need to enter credentials manually and speeds up the connection process.
From a marketing and analytics perspective, this method provides the library with valuable information about its audience. It can reveal age groups, interests, and frequency of visits. However, privacy concerns must be kept in mind: users must explicitly consent to the transfer of data, and the library must adhere to its personal information processing policy.
Implementation requires registering the application with the social network developers and obtaining API keys. Configuration is performed in the wireless network controller interface under "Social Login." It's important to provide an alternative login method for those who don't have social media accounts or don't want to use them.
It's worth noting that this method may be blocked or restricted on some corporate or educational networks where access to social media is restricted. Therefore, relying solely on it as your only authentication method is not recommended.
Comparison of authentication methods
To make an informed decision, library management and the IT department need to compare various options based on key parameters. There is no one-size-fits-all solution. The choice depends on priorities: security, implementation cost, or user experience.
Below is a table demonstrating the key differences between popular methods. It will help you quickly understand the characteristics of each approach and choose the one that's best for your institution.
| Method | Cost of implementation | Identification level | User friendliness |
|---|---|---|---|
| SMS authorization | High (traffic payment) | High (linked to number) | High |
| Vouchers | Low | Average (anonymous) | Average (code required) |
| Reader base | Average (integration) | Maximum | High (single password) |
| Social media | Low | Medium (social media profile) | Maximum (one click) |
When choosing a solution, consider not only current needs but also the scalability of the solution. If the library currently has 50 visitors per day, and a multimedia center for 500 people is planned for opening in a year, the authorization system must be able to handle the increased load.
Hardware setup and network security
After selecting the authorization method, the next step is the technical implementation phase. The key element here is a wireless network controller or a dedicated hotspot gateway. It is on this device that the rules are configured. Captive Portal, user profiles and security policies are created.
It's important to divide the network into logical segments (VLANs). Guest Wi-Fi must be completely isolated from the library's internal network, which contains the library's book servers, staff computers, and the video surveillance system. A VLAN configuration error could lead to the leakage of confidential data or the infection of the internal network with viruses from visitors' devices.
☑️ Checking guest network security
Regularly updating the firmware of access points and controllers is a must. Equipment manufacturers constantly release patches to fix vulnerabilities. Ignoring updates leaves the network vulnerable to known exploits.
It's also recommended to set up a monitoring system that will alert the administrator to suspicious activity, such as port scanning attempts or excessive bandwidth usage. This will allow for prompt incident response.
⚠️ Attention: Settings interfaces and menu item names may vary depending on your device model (MikroTik, Ubiquiti, TP-Link, Keenetic). Always consult the manufacturer's official documentation before making any changes.
Legal aspects and log storage
Providing public internet access places the library's responsibilities as a communications provider. According to the law, it is necessary to ensure the ability to identify users and store data on their online activities for a specified period. This requirement applies to all authentication methods.
The system must automatically collect and store IP addresses, session start and end times, and login information (phone number, username, MAC address). This data must be stored securely and made available to authorized authorities upon request.
The login page must include a notice of the network's terms of use and the user's agreement to them. This protects the institution from claims if a visitor uses the network for illegal activities. The agreement must be clear and understandable.
It is recommended to regularly audit your security settings and ensure your network configuration complies with current regulatory requirements. Laws and regulations are subject to change, and your IT infrastructure must adapt accordingly.
Is there a fee to use the authorization system?
Depends on the chosen solution. Open-source software (such as the Chillispot suite or MikroTik's built-in features) is free, but requires hardware and setup costs. Cloud services (SaaS) typically charge a subscription fee or a fee based on the number of concurrent users.
Is it possible to combine different login methods?
Yes, modern systems allow you to create multiple access profiles. For example, students can log in with a card, while casual visitors can use SMS. This can be accomplished using different SSIDs (network names) or a single page with a choice of methods.
What to do if the authorization server is down?
It's important to consider a fallback scenario. Some controllers allow you to enable "Open Network" mode with limited access to the library's internal resources or cache authorization data. It's also important to have a backup of the configuration.
How to limit speed for each user?
This is configured in user profiles on the controller. You can set a limit, for example, 2 Mbps for download and 1 Mbps for upload. This will prevent a single user from downloading the entire available bandwidth.