pat 无法ping通外网排查思路ip netns

admin

pat ping 相关地址：
sudo ip netns exec pat ping 114.114.114.114
, n7 d4 y4 f8 e7 n& L; g3 Dconnect: Network is unreachable
3 r; q) ]. Y( }; Y& X检查ns服务状态：
sudo systemctl status ns.service
鈼[0m ns.service - NS Service
' Z% \% I' Q: b/ |0 M8 ~   Loaded: loaded (/usr/lib/systemd/system/ns.service; enabled; vendor preset: disabled)
7 u8 Y/ K# }: I1 C$ l   Active: active (running) since Thu 2019-01-31 14:46:14 CST; 2 months 11 days ago
  N7 O+ g- g& z) U7 F2 A' O Main PID: 2860 (sh)
   CGroup: /system.slice/ns.service
           鈹溾攢2860 sh /opt/ns_check.sh
5 n/ K' O8 B( Y! N0 I/ w# R) {# ]           鈹斺攢9579 sleep 30

Jan 31 14:46:15 SV743 sh[2858]: RTNETLINK answers: Network is unreachable
Jan 31 14:46:14 SV743 systemd[1]: Starting NS Service...
Jan 31 14:46:14 SV743 systemd[1]: Started NS Service.
/ M8 t0 ^  G% \; |4 u
重启ns服务：
sudo systemctl restart ns.service

3 `+ V* T& c; c/ R

admin

1. 暂停服务
5 g: v  ]3 Y+ z/ G  `1.1 不影响在途业务
! k+ J& [# R0 t> disable service 192.168.2.10:8480 graceFul yes
　Done
0 k+ f: f6 r& h, t
, E! k7 l( ]( \) U0 ~: t1.2 强制停止服务
, P% g, B1 u: |& k9 x; M' m/ {4 h> disable service 192.168.2.10:8480 graceFul no
　Done
0 T2 `6 ]5 \0 p
1 W& M& K; y( C  C" M) A2. 开启服务
> enable service 192.168.2.10:8480
　Done
% _8 |. }) B5 d) Y) _+ n- g' a
0 T8 N+ t( b; Q' d3 R3. 检查服务状态
0 R  g( y# B/ \# G. b3.1 服务已停止
/ j' @) s$ D# g> show service 192.168.2.10:8480
        192.168.2.10:8480 (192.168.2.10:8480) - HTTP
% r/ G2 E0 A: ?2 ]+ e9 @/ K& Z6 L        State: OUT OF SERVICE

$ O8 [  N' r* t" X/ A2 f- Y# |3.2 服务正在停止
> show service 192.168.2.10:8480
2 ~* [3 M! ^/ s9 k        192.168.2.10:8480 (192.168.2.10:8480) - HTTP
0 T- t2 E& P% }% p- ?) L1 r        State: GOING OUT OF SERVICE (Graceful, Out Of Service in 8 seconds)

5 f; V5 t" b0 u; f4 P3.3 服务正常
  l+ d  ^- v$ e# ^0 {> show service 192.168.2.10:8480
        192.168.2.10:8280 (192.168.2.10:8480) - HTTP
        State: UP
7 w* U, P2 \8 Z
% l( r0 N; d, O8 [9 i4 v3.4 服务未启动
> show service 192.168.2.10:8480
        192.168.2.10:8480 (192.168.2.10:8480) - HTTP
        State: DOWN
# D- F$ k8 A+ R

admin

#在这里快速回复#ip netns exec spat_ns ip a