A INPUT -p tcp -m state -state NEW -dport 22 -j ACCEPT A INPUT -p icmp -m state -state NEW -icmp-type 8 -j ACCEPT # Allow all loopback (lo0) traffic and reject traffic # to localhost that does not originate from lo0. If instead you are using firewalld (as in Linode’s CentOS 7 and Fedora images), follow the Configure your Firewall Using FirewallD section.Ĭreate two files named v4 and v6 in your home directory to record your IPv4 and IPv6 firewall rules: If you are using iptables (which is set in Linode’s Ubuntu and Debian images by default), follow the Configure your Firewall Using IPTables section. Be sure to give the steam user sudo privileges. Make the username steam to coincide with the rest of Linode’s Steam guides, as well as Valve’s official documentation. Use our Setting Up and Securing a Compute Instance guide to:Īdd a limited Linux user to your server.
Game servers and clients are an especially ripe target for attack. For more information about how screen works, review the rest of our Using GNU Screen to Manage Persistent Terminal Sessions guide. Install the screen utility, which will be used later when running SteamCMD.
See our Getting Started with Linode and Creating a Compute Instance guides. If you have not already done so, create a Linode account and Compute Instance. If you’re not familiar with the sudo command, you can check our Users and Groups guide. Commands that require elevated privileges are prefixed with sudo. This guide is written for a non-root user.
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