обзор сетевых пространств имен Linux (overview of Linux network namespaces)
Имя (Name)
network_namespaces - overview of Linux network namespaces
Описание (Description)
Network namespaces provide isolation of the system resources
associated with networking: network devices, IPv4 and IPv6
protocol stacks, IP routing tables, firewall rules, the /proc/net
directory (which is a symbolic link to /proc/PID/net), the
/sys/class/net directory, various files under /proc/sys/net, port
numbers (sockets), and so on. In addition, network namespaces
isolate the UNIX domain abstract socket namespace (see unix(7)).
A physical network device can live in exactly one network
namespace. When a network namespace is freed (i.e., when the
last process in the namespace terminates), its physical network
devices are moved back to the initial network namespace (not to
the parent of the process).
A virtual network (veth(4)) device pair provides a pipe-like
abstraction that can be used to create tunnels between network
namespaces, and can be used to create a bridge to a physical
network device in another namespace. When a namespace is freed,
the veth(4) devices that it contains are destroyed.
Use of network namespaces requires a kernel that is configured
with the CONFIG_NET_NS option.
Смотри также (See also)
nsenter(1), unshare(1), clone(2), veth(4), proc(5), sysfs(5),
namespaces(7), user_namespaces(7), brctl(8), ip(8),
ip-address(8), ip-link(8), ip-netns(8), iptables(8), ovs-vsctl(8)
