https://linuxeries.org/tags/syslog/ Recent content in Syslog on ShieldedBytes Hugo en Sun, 20 Sep 2026 11:59:22 +0200 https://linuxeries.org/post/2026-09-20-eliminating-10000line-dhcp-server-spam-in-sys/ Sun, 20 Sep 2026 11:59:22 +0200 https://linuxeries.org/post/2026-09-20-eliminating-10000line-dhcp-server-spam-in-sys/ <h2 id="problem-dhcp-spamming-syslog">Problem: DHCP Spamming Syslog</h2> <p>A running DHCP server can generate thousands of “client request” and “lease granted” messages every hour. On busy networks this inflates <code>/var/log/syslog</code> to 10 k lines a day, making it hard to spot genuine errors and bloating disk usage. The service must stay online, so the goal is to silence the noise without turning the daemon off.</p> <h2 id="why-you-cant-just-disable-the-service">Why You Can’t Just Disable the Service</h2> <p>Disabling <code>dhcpd</code> or <code>dhcp-server</code> removes the spam but also removes the ability to hand out IPs. In a homelab or small office you may have a separate DHCP server (e.g., a router) that you can stop, but in many setups the Linux box is the sole DHCP provider. The logs are useful for troubleshooting mis‑configurations, but the volume is excessive.</p>