Hostilla.pl IT glossary

What is Firewall?

A firewall controls network traffic and can allow, limit or block connections.

Definition

A firewall controls network traffic and can allow, limit or block connections.

What does it mean in practice?

For hosted services, Firewall matters when identifying threats, limiting access, preserving evidence and verifying that a remediation really worked.

A practical Hostilla.pl example

For a security incident, record the affected account, domain, source IP and timestamp before changing logs or files. Firewall is useful only when it is connected to evidence and a controlled remediation step.

What should you check?

  • the affected service, URL, account and time window
  • server, application, authentication and mail logs
  • known-good backups and the last controlled change
  • least-privilege access, containment and a verification test

Short questions

What is Firewall?

A firewall controls network traffic and can allow, limit or block connections.

Why does Firewall matter for hosting?

It affects how a website, e-mail, DNS, SSL and hosting environment work together.

Can Hostilla.pl help with Firewall?

Yes. Hostilla.pl combines hosting, domains, e-mail, SSL, DNS, backups and technical support in one environment.