Why did "matscan" join my Minecraft server?
matscan (formerly r_admincraft) is a Minecraft bot that joins potentially vulnerable Minecraft servers and sends a message in chat to inform the admins.
How should I secure my server?
It should’ve told you in its long chat message (though some servers might cut it off):
- If the server was meant to be private then enable a whitelist.
- If the server is offline-mode then enable online-mode in the server.properties or install a plugin such as article.svelte-1hb1b3k img{max-width:30rem;max-height:20rem;margin:1em auto;display:block}article.svelte-1hb1b3k .box{border:1px solid var(--background-color-alt-3);padding:0.5em;border-radius:0.2em;width:fit-content;margin-bottom:0.5em;box-shadow:0 0 0.5em rgba(0, 0, 0, 0.8)}article.svelte-1hb1b3k .warning::before{content:'Warning';background:url(/emoji/26a0.svg) no-repeat;height:1em;display:block;padding-left:1.2em;margin-right:0.2em;margin-bottom:0.2em;font-weight:bold}h1.svelte-1hb1b3k{margin-bottom:0}.article-header.svelte-1hb1b3k{margin-bottom:1em}time.svelte-1hb1b3k{opacity:0.5;font-style:italic}.back-anchor.svelte-itbbon{color:var(--text-color-alt-2);text-decoration:none}