Search results for: "DNS checks"

How can PHP be used to retrieve information about the parent DNS server of a domain?

To retrieve information about the parent DNS server of a domain in PHP, you can use the `dns_get_record()` function to query the NS (Name Server) reco...

How can PHP be used to retrieve a user's DNS name in addition to their IP address?

To retrieve a user's DNS name in addition to their IP address, you can use the `gethostbyaddr()` function in PHP. This function takes the user's IP ad...

How can PHP be used to retrieve DNS records and handle IPv4 and IPv6 addresses?

To retrieve DNS records and handle IPv4 and IPv6 addresses in PHP, you can use the `dns_get_record` function to fetch DNS records for a given domain n...

What are the potential pitfalls of using wildcard DNS records for subdomains in PHP projects?

Using wildcard DNS records for subdomains in PHP projects can lead to security vulnerabilities such as subdomain takeover attacks. To mitigate this ri...

How can one troubleshoot and resolve DNS resolution issues in PHP socket connections?

When experiencing DNS resolution issues in PHP socket connections, one possible solution is to manually specify the IP address of the server instead o...