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
) y0 M4 L- u% z* h6 y: e' |connect: Network is unreachable
检查ns服务状态：
sudo systemctl status ns.service
$ K% g0 O# m% _0 m, ~鈼[0m ns.service - NS Service
1 v5 h2 j7 l3 Q/ D8 i$ ?4 V; r   Loaded: loaded (/usr/lib/systemd/system/ns.service; enabled; vendor preset: disabled)
   Active: active (running) since Thu 2019-01-31 14:46:14 CST; 2 months 11 days ago
7 C% A- n6 j  t4 \ Main PID: 2860 (sh)
( K+ \4 w* K; V0 h% q8 G   CGroup: /system.slice/ns.service
           鈹溾攢2860 sh /opt/ns_check.sh
+ X9 p" ]; i: ?! X1 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.
$ j" n3 {! N0 e7 n$ [6 L; f/ g
重启ns服务：
sudo systemctl restart ns.service
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# b# v8 I+ \4 R* v4 m# X

admin

1. 暂停服务
- L( E9 W' r5 p" j( M1.1 不影响在途业务
> disable service 192.168.2.10:8480 graceFul yes
! L+ U$ G: J  M7 I" Q　Done
3 o7 _" i2 V, H# `' h, p# S& h
3 R1 P4 G" k' t' t6 @1.2 强制停止服务
1 E5 c$ R# f% u& _/ c> disable service 192.168.2.10:8480 graceFul no
　Done
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2. 开启服务
, a! _" O, j: q, r: }9 f: o> enable service 192.168.2.10:8480
　Done
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3. 检查服务状态
: E4 Y" i0 L0 h1 h3.1 服务已停止
) R" @; f7 p6 g+ f! }: M! L8 U> show service 192.168.2.10:8480
* @. b  e2 H+ k9 n1 s# Q$ I4 }  L* S        192.168.2.10:8480 (192.168.2.10:8480) - HTTP
6 g" o* |# Z& C3 D% ?( Z        State: OUT OF SERVICE

: e$ ^9 O0 g( ~  u3.2 服务正在停止
+ T4 m5 o  ~- q; K# s  a2 ?8 {> show service 192.168.2.10:8480
9 r3 C9 W# G. e2 t, ~        192.168.2.10:8480 (192.168.2.10:8480) - HTTP
        State: GOING OUT OF SERVICE (Graceful, Out Of Service in 8 seconds)

! O$ k) d7 R& Z# P0 e+ y3.3 服务正常
, r6 V* N( t* |4 O> show service 192.168.2.10:8480
        192.168.2.10:8280 (192.168.2.10:8480) - HTTP
% \0 @! i% B6 C        State: UP
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3.4 服务未启动
> show service 192.168.2.10:8480
& J" B8 R- [4 C6 Q# z9 _        192.168.2.10:8480 (192.168.2.10:8480) - HTTP
4 N! ~; b! m. `1 W, n# v6 P/ J) z        State: DOWN
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admin

#在这里快速回复#ip netns exec spat_ns ip a