limits on the number of namespaces of various types NAME /proc/sys/user/ - limits on the number of namespaces of various typ...namespaces NAME /proc/pid/ns/ - namespaces DESCRIPTION /proc/ pid /ns/ (since Linux 3.0) This is a s......e lists all the filesystems currently mounted in the process's mount namespace (see mount_namespaces (7)). The format of this file is documented in fstab (5). Since Linux 2.6.15…...e lists all the filesystems currently mounted in the process's mount namespace (see mount_namespaces (7)). The format of this file is documented in fstab (5). Since Linux 2.6.15…...ile is not merely a symbolic link. It provides the same view of the filesystem (including namespaces and the set of per-process mounts) as the process itself. An example illustr…...p - user and group ID mappings DESCRIPTION /proc/ pid /gid_map (since Linux 3.5) See user_namespaces (7). /proc/ pid /uid_map (since Linux 3.5) See user_namespaces (7). SEE ALSO…...p - user and group ID mappings DESCRIPTION /proc/ pid /gid_map (since Linux 3.5) See user_namespaces (7). /proc/ pid /uid_map (since Linux 3.5) See user_namespaces (7). SEE ALSO…...d. Groups Supplementary group list. NStgid Thread group ID (i.e., PID) in each of the PID namespaces of which pid is a member. The leftmost entry shows the value with respect to…...PTION Subuid authorizes a user id to map ranges of user ids from its namespace into child namespaces. The delegation of the subordinate uids can be configured via the subid fiel…...ION Subgid authorizes a group id to map ranges of group ids from its namespace into child namespaces. The delegation of the subordinate gids can be configured via the subid fiel…...d_map - project ID mappings DESCRIPTION /proc/ pid /projid_map (since Linux 3.7) See user_namespaces (7). SEE ALSO proc (5)...llow or deny setting groups DESCRIPTION /proc/ pid /setgroups (since Linux 3.19) See user_namespaces (7). SEE ALSO proc (5)...) This file contains information about mounts in the process's mount namespace (see mount_namespaces (7)). It supplies various information (e.g., propagation state, root of moun…..., configuration information) about the mounts in the process's mount namespace (see mount_namespaces (7)). Lines in this file have the form: device /dev/sda7 mounted on /home wi…...ice manager in which case PrivateUsers= is implicitly enabled (requires unprivileged user namespaces support to be enabled in the kernel via the "kernel.unprivileged_userns_clon…...ve for the crashing process. That means the crashing process's mount namespace (see mount_namespaces (7)), its current working directory (found via getcwd (2)), and its root dir…...cle, this file was removed because of security concerns, as it exposes information across namespaces. Furthermore, it is possible to obtain the same information via in-kernel tr…...netstat (8) suite provides much cleaner access to these files. With the advent of network namespaces, various information relating to the network stack is virtualized (see netwo…...netstat (8) suite provides much cleaner access to these files. With the advent of network namespaces, various information relating to the network stack is virtualized (see netwo….../locks is filtered to show just the locks for the processes in the PID namespace (see pid_namespaces (7)) for which the /proc filesystem was mounted. (In the initial PID namespa…