Differences

This shows you the differences between two versions of the page.

--- tips:linux:networknamespaces [2019/01/24 15:30] – created scipio
+++ tips:linux:networknamespaces [2019/01/24 19:03] (current) – [use] scipio
@@ Line 3: / Line 3: @@
 ===== setup =====
-install [[netns|https://raw.githubusercontent.com/Lekensteyn/netns]] helper
+install [[https://raw.githubusercontent.com/Lekensteyn/netns|netns]] helper
-{{{
+<code>
 wget https://raw.githubusercontent.com/Lekensteyn/netns/master/netns -O /bin/netns
 chmod +x /bin/nets
-}}}
+</code>
 uncomment "net.ipv4.ip_forward=1" in /etc/sysctl.d/99-sysctl.conf
 enable NAT
-{{{
+<code>
 iptables -t nat -A POSTROUTING -o ens3 -j MASQUERADE
 iptables-save  > /etc/firewall
-}}}
+</code>
-}}}
+bash prompt, add to .bashrc
+<code>
+_ns_name=$(ip netns identify 2>/dev/null)
+PS1=${_ns_name:+(${_ns_name})}${PS1}
+unset _ns_name
+</code>
+===== use =====
+create namespace "0"
+<code>
+netns 0 start
+</code>
+run bach inside
+<code>
+netns 0 exec
+</code>
+permit routing
+<code>
+ip netns exec netns0 sysctl -w net.ipv4.ip_forward=1
+iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE
+</code>
+inside NS
+<code>
+iptables -t nat -A PREROUTING -d 10.9.0.2 -p tcp --dport 443 -j DNAT --to-destination 10.139.231.1:443
+</code>
+<code>
+curl -k --header "Host: www.xxx.it" https://10.9.0.2:443/Info-ws/services/xxx/
+</code>

Galileo Labs