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| author | Michael J. Chudobiak <mjc@avtechpulse.com> | 2016-04-25 10:00:44 -0400 |
|---|---|---|
| committer | Michael J. Chudobiak <mjc@avtechpulse.com> | 2016-04-25 10:00:44 -0400 |
| commit | a1df417e74aa6dae7352dc8cbb0ad471af5b7c69 (patch) | |
| tree | c34b2311e37ea31db153c90cb8f4570374d05e78 /linux/Documentation/namespaces/resource-control.txt | |
initial Olimex linux tree from Daniel, originally Feb 3, 2016
Diffstat (limited to 'linux/Documentation/namespaces/resource-control.txt')
| -rw-r--r-- | linux/Documentation/namespaces/resource-control.txt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/linux/Documentation/namespaces/resource-control.txt b/linux/Documentation/namespaces/resource-control.txt new file mode 100644 index 00000000..abc13c39 --- /dev/null +++ b/linux/Documentation/namespaces/resource-control.txt @@ -0,0 +1,14 @@ +There are a lot of kinds of objects in the kernel that don't have +individual limits or that have limits that are ineffective when a set +of processes is allowed to switch user ids. With user namespaces +enabled in a kernel for people who don't trust their users or their +users programs to play nice this problems becomes more acute. + +Therefore it is recommended that memory control groups be enabled in +kernels that enable user namespaces, and it is further recommended +that userspace configure memory control groups to limit how much +memory user's they don't trust to play nice can use. + +Memory control groups can be configured by installing the libcgroup +package present on most distros editing /etc/cgrules.conf, +/etc/cgconfig.conf and setting up libpam-cgroup. |