Message ID | 1426960318-12044-1-git-send-email-vadim4j@gmail.com |
---|---|
State | Rejected, archived |
Delegated to: | stephen hemminger |
Headers | show |
On Sat, Mar 21, 2015 at 07:51:58PM +0200, Vadim Kochan wrote: > From: Vadim Kochan <vadim4j@gmail.com> > > Signed-off-by: Vadim Kochan <vadim4j@gmail.com> > --- > v2: > Deleted leading spaces - suggested by Ben Hutchings <ben@decadent.org.uk> > > man/man8/ip-netns.8 | 18 +++++++++++++----- > 1 file changed, 13 insertions(+), 5 deletions(-) > > diff --git a/man/man8/ip-netns.8 b/man/man8/ip-netns.8 > index d496675..0c3dca8 100644 > --- a/man/man8/ip-netns.8 > +++ b/man/man8/ip-netns.8 > @@ -46,7 +46,7 @@ ip-netns \- process network namespace management > A network namespace is logically another copy of the network stack, > with its own routes, firewall rules, and network devices. > > -By default process inherits network namespace from its parent. Initially all > +By default a process inherits network namespace from its parent. Initially all Perhaps also s/inherits/inherits its/ > the processes share the same default network namespace from the init process. > > By convention a named network namespace is an object at > @@ -103,10 +103,18 @@ option was specified then all the network namespace names will be removed. > It is possible to lose the physical device when it was moved to netns and > then this netns was deleted with a running process: > > - $ ip netns add net0 > - $ ip link set dev eth0 netns net0 > - $ ip netns exec net0 SOME_PROCESS_IN_BACKGROUND > - $ ip netns del net0 > +.RS 10 > +$ ip netns add net0 > +.RE > +.RS 10 > +$ ip link set dev eth0 netns net0 > +.RE > +.RS 10 > +$ ip netns exec net0 SOME_PROCESS_IN_BACKGROUND > +.RE > +.RS 10 > +$ ip netns del net0 > +.RE > > and eth0 will appear in the default netns only after SOME_PROCESS_IN_BACKGROUND > will exit or will be killed. To prevent this the processes running in net0 > -- > 2.3.1 > > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Mar 23, 2015 at 10:11:24AM +0900, Simon Horman wrote: > On Sat, Mar 21, 2015 at 07:51:58PM +0200, Vadim Kochan wrote: > > From: Vadim Kochan <vadim4j@gmail.com> > > > > Signed-off-by: Vadim Kochan <vadim4j@gmail.com> > > --- > > v2: > > Deleted leading spaces - suggested by Ben Hutchings <ben@decadent.org.uk> > > > > man/man8/ip-netns.8 | 18 +++++++++++++----- > > 1 file changed, 13 insertions(+), 5 deletions(-) > > > > diff --git a/man/man8/ip-netns.8 b/man/man8/ip-netns.8 > > index d496675..0c3dca8 100644 > > --- a/man/man8/ip-netns.8 > > +++ b/man/man8/ip-netns.8 > > @@ -46,7 +46,7 @@ ip-netns \- process network namespace management > > A network namespace is logically another copy of the network stack, > > with its own routes, firewall rules, and network devices. > > > > -By default process inherits network namespace from its parent. Initially all > > +By default a process inherits network namespace from its parent. Initially all > > Perhaps also s/inherits/inherits its/ > > > the processes share the same default network namespace from the init process. > > > > By convention a named network namespace is an object at > > @@ -103,10 +103,18 @@ option was specified then all the network namespace names will be removed. > > It is possible to lose the physical device when it was moved to netns and > > then this netns was deleted with a running process: > > > > - $ ip netns add net0 > > - $ ip link set dev eth0 netns net0 > > - $ ip netns exec net0 SOME_PROCESS_IN_BACKGROUND > > - $ ip netns del net0 > > +.RS 10 > > +$ ip netns add net0 > > +.RE > > +.RS 10 > > +$ ip link set dev eth0 netns net0 > > +.RE > > +.RS 10 > > +$ ip netns exec net0 SOME_PROCESS_IN_BACKGROUND > > +.RE > > +.RS 10 > > +$ ip netns del net0 > > +.RE > > > > and eth0 will appear in the default netns only after SOME_PROCESS_IN_BACKGROUND > > will exit or will be killed. To prevent this the processes running in net0 > > -- > > 2.3.1 > > > > -- > > To unsubscribe from this list: send the line "unsubscribe netdev" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Hi, So may it be like this ? By default a process inherits its network namespace from the parent. or like this ? By default a process inherits its network namespace from its parent. Thanks, -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Vadim, On Tue, Mar 24, 2015 at 10:29:24AM +0200, Vadim Kochan wrote: > On Mon, Mar 23, 2015 at 10:11:24AM +0900, Simon Horman wrote: > > On Sat, Mar 21, 2015 at 07:51:58PM +0200, Vadim Kochan wrote: [snip] > Hi, > > So may it be like this ? > > By default a process inherits its network namespace from the parent. > > or like this ? > > By default a process inherits its network namespace from its parent. The second option seems best to me. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/man/man8/ip-netns.8 b/man/man8/ip-netns.8 index d496675..0c3dca8 100644 --- a/man/man8/ip-netns.8 +++ b/man/man8/ip-netns.8 @@ -46,7 +46,7 @@ ip-netns \- process network namespace management A network namespace is logically another copy of the network stack, with its own routes, firewall rules, and network devices. -By default process inherits network namespace from its parent. Initially all +By default a process inherits network namespace from its parent. Initially all the processes share the same default network namespace from the init process. By convention a named network namespace is an object at @@ -103,10 +103,18 @@ option was specified then all the network namespace names will be removed. It is possible to lose the physical device when it was moved to netns and then this netns was deleted with a running process: - $ ip netns add net0 - $ ip link set dev eth0 netns net0 - $ ip netns exec net0 SOME_PROCESS_IN_BACKGROUND - $ ip netns del net0 +.RS 10 +$ ip netns add net0 +.RE +.RS 10 +$ ip link set dev eth0 netns net0 +.RE +.RS 10 +$ ip netns exec net0 SOME_PROCESS_IN_BACKGROUND +.RE +.RS 10 +$ ip netns del net0 +.RE and eth0 will appear in the default netns only after SOME_PROCESS_IN_BACKGROUND will exit or will be killed. To prevent this the processes running in net0