diff --git a/FAQ.md b/FAQ.md index 9458cf645..ff31e67a6 100644 --- a/FAQ.md +++ b/FAQ.md @@ -45,6 +45,31 @@ For Docker Compose, run your container with: - seccomp=unconfined ``` +## My host is incompatible with images based on rdesktop {#rdesktop} + +Some x86_64 hosts have issues running rdesktop based images even with the latest docker version due to syscalls that are unknown to docker. + +### Symptoms + +If your host is affected you may see errors in your containers such as: + +```shell +Failed to close file descriptor for child process (Operation not permitted) +``` + +### Resolution + +For Docker CLI, run your container with: + +`--security-opt seccomp=unconfined` + +For Docker Compose, run your container with: + +```yaml + security_opt: + - seccomp=unconfined +``` + ## My host is incompatible with images based on Ubuntu Focal and Alpine 3.13 and later {#libseccomp} This only affects 32 bit installs of distros based on Debian Buster.