Zimbra Admin Reminder … Block “memcrashd” Port 11211

By Gayle Billat on July 9, 2020 in Product News, Community, Education, Open Source, PowerTips – Admins, Product Updates, Security & Privacy, Zimbra Server

Hello Zimbra Friends & Admins,

This is a friendly reminder that Zimbra memcached may face the “memcrashd” attack on port 11211. By default, memcached listens on a server IP address that is accessible on the network and via the internet if there is no firewall.

If your Zimbra memcache servers are behind a firewall, we recommend blocking access on port 11211 from the Internet to Zimbra memcache servers. If your zimbra memcache server is NOT behind a firewall and is accessible over the Internet, then proceed with the steps in this wiki.Thanks,Your Zimbra Team

#zimbrahelp, Zimbra Collaboration, Zimbra Community, memcached, memcrashd, port 11211, zimbra, zimbra security

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Zimbra Admin Reminder … Block “memcrashd” Port 11211

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