Hotels are subject to clear regulations for keeping logs as Internet access sites."To keep a log"But there is a rather vague understanding of what the specific requirements are and what practical problems will be encountered in their implementation. The hotel network audit gateway is a central tool for achieving log retention, but simply deploying an audit gateway does not amount to compliance.
Basic requirements at the regulatory level
In accordance with the relevant provisions of national Internet security management, a place providing public access services needs to record users’ logbooks and keep them for at least 180 days. The log contents should include information such as IP addresses, access times, target addresses, etc. that is accessed by users, and require the ability to link network behavior to specific user identities.——Retention time and identity association——Only the traffic logs do not have identity information, or have an identification information but have a log that only 30 days have elapsed without meeting the requirements.
Practical difficulty of identity association
Identity is the hardest part of actual implementation. Technically, audit gateways record IP addresses and traffic behaviour, not"Someone.". To match IP to a specific resident identity, you need an ID binding record at some point. This log is usually from Portal authentication system.——The number of the cell or room is entered when the occupants log in WiFi, and the number of the cell/room and IP assigned to it are tied at this point, leaving a time stamp. As long as the log time and the authentication system of the audit gateway are aligned, the search can be returned."This IP, who's the guest in this time?"。
The problem is that many hotel certification systems and auditing systems are two separate systems, with possible deviations in the clock on both sides, or that IP distribution records may not be complete enough, or that the log format of the authentication system and audit gateway formats cannot correspond directly. These details do not appear to be apparent from day-to-day operations, and when it comes to extracting a specific audit record, data on either side are not matched.
DHCP address dynamical distribution interference
The user 's device usually uses DHCP to get IP addresses dynamically, and the same IP address may be distributed to different occupants at different times. There are a lot of IP access records in audit gateway logs, but if you want to trace a record from which one is generated, you must check the DHCP lease records to confirm who has used it during this time period and then go to the authentication system to find the corresponding identity information before you can finally complete the connection. This query chain is longer and any link between it is incomplete and the trace is broken. Many hotel DHCP servers do not maintain long enough lease history records, resulting in an inability to match ex post facto queries.
HTTPS Audit limitations on traffic
The majority of Internet traffic is HTTPS. Encryption traffic is a real constraint on the audit gateway: without decrypting, only target IPs and domain names are visible, with no specific access to it. This is acceptable for most compliance audit scenarios.——The core of compliance requirements is to document access behaviour, not restore the content of the visit——But for some special scenarios (e.g., the need to identify irregularities), a simple flow log is not enough. Some audit gateways support SSL declassification, but the decryption function involves user privacy and requires clear legal grounds and technical segregation measures that cannot be used randomly.
Planning of log storage capacity
The 180-day log retention sounds like a time concept, and is actually a storage capacity problem. The traffic logs generated daily by the hotel network during peak periods may reach GB, with 180 days accumulated to be quite significant for storage. The space available for self-portfolios on audit gateways is usually limited, many of the plants are configured to contain only dozens of days, and logs will automatically be covered after expiry if they do not extend their cover or external storage. Logs are overlayed when the system is running, but once historical records are checked, it becomes clear that the desired time period is lost.
Complete Protection of Logs
The logbook for compliance audits not only keeps but also ensures integrity——In other words, the log cannot be modified or deleted at will. Some audit gateways support the log Hashi or digital signature to ensure that each record is not tampered with after storage. This function is not used in daily operations, but where an audit log is required as evidence, proof of its integrity is important. If a log has no completeness protection mechanism, the submitted record may become ineffective even if it is true because it cannot be proved that it was not altered.
Practical issues of log search efficiency
The volume of audit logs is significant, and search performance becomes critical if a particular time frame, a specific IP or a particular resident's record is to be searched from it. Some low-end audit equipment has logs stored in simple text formats, which slow the full-text retrieval process, and one historical record may take minutes or more. This does not affect daily inspections, but efficiency problems are highlighted when rapid extraction of records is required in an emergency.
Need for a regular inspection mechanism
The audit gateway is not a one-time exercise when it is online. Clock deviations may accumulate, storage space may be inadequate, and the interface configuration of the certification system may be disabled by updating. Many hotels do not ask questions about the audit gateway once they have been deployed until inspection. It is reasonable to establish a regular check mechanism that will check the integrity of logs, store the remaining spaces, and identity association records on a monthly basis, and identify problems in time for processing and not for remediate passive checks.
The retention of log compliance seems to be a technical problem and essentially a management issue. The deployment of equipment is only the starting point, depending on whether or not people really look at it in their day-to-day operations.