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
6 ^) O4 r# d4 {3 ]( A* ^' Cconnect: Network is unreachable
% w- O) q0 q7 P检查ns服务状态：
9 n2 J  x( U9 n0 rsudo systemctl status ns.service
鈼[0m ns.service - NS Service
   Loaded: loaded (/usr/lib/systemd/system/ns.service; enabled; vendor preset: disabled)
3 g; K* U1 L$ s+ d* @3 n  L   Active: active (running) since Thu 2019-01-31 14:46:14 CST; 2 months 11 days ago
Main PID: 2860 (sh)
0 o( A, X! W  `8 |/ b   CGroup: /system.slice/ns.service
           鈹溾攢2860 sh /opt/ns_check.sh
" s+ O, V( X* R: C  V7 K           鈹斺攢9579 sleep 30
' y7 o7 _6 h1 K7 C
Jan 31 14:46:15 SV743 sh[2858]: RTNETLINK answers: Network is unreachable
! l5 _" L6 N# pJan 31 14:46:14 SV743 systemd[1]: Starting NS Service...
Jan 31 14:46:14 SV743 systemd[1]: Started NS Service.
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重启ns服务：
sudo systemctl restart ns.service
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admin

1. 暂停服务
8 _0 {& n( ]: A" ~2 v5 h) [+ y6 K1.1 不影响在途业务
> disable service 192.168.2.10:8480 graceFul yes
5 E: S; ?  o; e　Done

1 |) F8 k1 H+ O1.2 强制停止服务
' P; q5 z- x+ |% A- Y> disable service 192.168.2.10:8480 graceFul no
/ g& l# I3 M9 Z. o　Done

+ D4 ]) u' z$ n2. 开启服务
* L* S$ m5 \) N. c# g. t> enable service 192.168.2.10:8480
/ n4 d* _7 o  u) K. L( D; P7 l　Done

3. 检查服务状态
2 H" E' Q4 s1 P; O; _/ S  E3.1 服务已停止
> show service 192.168.2.10:8480
        192.168.2.10:8480 (192.168.2.10:8480) - HTTP
* t+ A/ |" [( z  @/ q        State: OUT OF SERVICE
% V2 V6 B& W2 x- D0 }
" o# S2 p  L: r+ e# D# H# g3.2 服务正在停止
2 r2 z6 ]( l8 J3 M; \> show service 192.168.2.10:8480
3 m' i+ b9 Z7 I3 \8 X1 l        192.168.2.10:8480 (192.168.2.10:8480) - HTTP
        State: GOING OUT OF SERVICE (Graceful, Out Of Service in 8 seconds)
( X# H+ t3 I+ O/ O+ ^9 L  _
3.3 服务正常
> show service 192.168.2.10:8480
- ]* U" Z# F/ b5 k* K; {1 g        192.168.2.10:8280 (192.168.2.10:8480) - HTTP
        State: UP
( ?, _9 \! V( Z6 V' q
" |0 L, g- ^2 z3.4 服务未启动
! N  Q3 Q4 `8 k) P3 T; D( L> show service 192.168.2.10:8480
        192.168.2.10:8480 (192.168.2.10:8480) - HTTP
        State: DOWN

admin

#在这里快速回复#ip netns exec spat_ns ip a