To avoid leaking your IP address for logging, you can configure a source IP address. This article will explain how to do this, what options you have, and what privacy implications this has. Also, learn what is meant by ‘original client IP address’ when configuring an SMTP proxy server. This article provides practical advice and examples for configuring a SMTP proxy server. The following article discusses privacy implications and how to configure your SMTP proxy server to prevent data leakage.

Configuring a source IP address

To configure a source IP address check this for logging, go to your Connections page and click Advanced. You will then see a list of servers, websites, and directories. On the Advanced tab, find the XFF header and click Add. The next step is to add it to a variety of logs, including Threat, Data Filtering, and Wildfire Submissions. Then, add a new field called “XFF header” and click OK.

If you’re using Cisco IOS, you can set a source IP address to enable logging and to enable log-in. By default, source IP addresses are assigned to the outgoing interface of the switch. You can also specify a different source IP address for each software application. This is especially useful if you use multiple IP interfaces for different applications. Typically, you would only need one source IP address for each application.

Preserving the original client IP address for logging

Using the “X-Forwarded-For” Layer7 HTTP header in your log files will preserve the original IP address of your clients. This information can be used by standard web applications, endpoint applications, and server-based web analytic tools. However, the problem is that these applications cannot log this information without knowing the original client IP address. The good news is that there are a few easy ways to preserve the IP address.

One way to do this is to use a load balancer. Using a load balancer can make your website unavailable for some clients. But if you are using a load balancer, the IP address of your clients will appear in your logs. You need to set the client IP in a way that preserves the original IP address. To do this, you need to configure your load balancer to reject requests without the PROXY header.


If you are concerned about your IP address, you may want to opt out of the default logging function. The reason why is that it is possible for hackers to identify users using IP addresses. This data can help determine the source of attacks and their patterns, which can prevent future ones. If you are concerned about your privacy, you can opt out of logging by obfuscating IP addresses using cryptolog or ip_anon.

XFF header information is commonly used in server-based web analytic tools, as well as endpoint applications. The logging information is necessary for server-based web applications. Using a server-based tool for this purpose will require you to set up a log file with XFF header information. However, the following steps show you how to enable logging in IIS 8.5. You can check the logging option from the Advanced Logging window.

Privacy implications

While an IP address does not reveal anything about a person’s activities, it can be linked to a machine or person. Tracking the activities of a “person” via an IP address could amount to personal data. Whether a number is personal depends on how it is used. This article discusses the privacy implications of using IP addresses for logging. Here are some examples. Let’s consider a porn website employee named John Smythe as an example.

IP addresses are not considered personal data by law, because they cannot be connected to a specific device without complicated forensics. Additionally, Internet service providers do not hand out this information to just anybody. To trace an IP address to a particular subscriber, a warrant or subpoena would be needed. Even if it does happen, there is still a risk of privacy violations. If your personal data is used, the privacy implications of IP address for logging are important.