From 60af6fb4aa2c913682c224acd4fb79b5cee2b5c6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B0=8F=E5=BC=9F=E8=B0=83=E8=B0=83=E2=84=A2?=
 <398188662@qq.com>
Date: Wed, 19 Jul 2017 03:02:40 +0800
Subject: [PATCH] Update iptables.md

---
 command/iptables.md | 43 ++++++++++++++++++++++---------------------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/command/iptables.md b/command/iptables.md
index e58786858f..3677ee4ce1 100644
--- a/command/iptables.md
+++ b/command/iptables.md
@@ -68,31 +68,32 @@ iptables -t 表名 <-A/I/D/R> 规则链名 [规则号] <-i/o 网卡名> -p 协
 ```bash
                              ┎╍╍╍╍╍╍╍╍╍╍╍╍╍╍╍┓                         
  ┌───────────────┐           ┃    Network    ┃                         
- │ table: filter │           ┖━━━━━━━│━━━━━━━┛                         
- │ chain: INPUT  ◀────┐              │                                 
- └───────┬───────┘    │              │                                 
-         │            │    ┌─────────▼─────────┐                       
-  ┌      ▼      ┐     │    │ table: nat        │                       
-  │local process│     │    │ chain: PREROUTING │                       
-  └             ┘     │    └─────────┬─────────┘                       
-         │            │              │                                 
-         ▼            │              ▼              ┌─────────────────┐
-┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅   │      ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅      │table: nat       │
- Routing decision     └────── outing decision ─────▶│chain: PREROUTING│
-┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅          ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅      └────────┬────────┘
+ │ table: filter │           ┖━━━━━━━┳━━━━━━━┛                         
+ │ chain: INPUT  │◀────┐             │                                 
+ └───────┬───────┘     │             ▼                                 
+         │             │   ┌───────────────────┐                       
+  ┌      ▼      ┐      │   │ table: nat        │                       
+  │local process│      │   │ chain: PREROUTING │                       
+  └             ┘      │   └─────────┬─────────┘                       
+         │             │             │                                 
+         ▼             │             ▼              ┌─────────────────┐
+┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅    │     ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅      │table: nat       │
+ Routing decision      └───── outing decision ─────▶│chain: PREROUTING│
+┅┅┅┅┅┅┅┅┅┳┅┅┅┅┅┅┅┅┅          ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅      └────────┬────────┘
          │                                                   │         
-         │                                                   │         
- ┌───────▼───────┐                                           │         
+         ▼                                                   │         
+ ┌───────────────┐                                           │         
  │ table: nat    │           ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅               │         
  │ chain: OUTPUT │    ┌─────▶ outing decision ◀──────────────┘         
- └───────┬───────┘    │      ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅                         
+ └───────┬───────┘    │      ┅┅┅┅┅┅┅┅┳┅┅┅┅┅┅┅┅                         
          │            │              │                                 
- ┌───────▼───────┐    │   ┌──────────▼─────────┐                       
- │ table: filter │    │   │ table: nat         │                       
- │ chain: OUTPUT ├────┘   │ chain: POSTROUTING │                       
- └───────────────┘        └──────────┬─────────┘                       
-                                     │                                 
-                             ┎╍╍╍╍╍╍╍▼╍╍╍╍╍╍╍┓                         
+         ▼            │              ▼                                 
+ ┌───────────────┐    │   ┌────────────────────┐                       
+ │ table: filter │    │   │ chain: POSTROUTING │                       
+ │ chain: OUTPUT ├────┘   └──────────┬─────────┘                       
+ └───────────────┘                   │                                 
+                                     ▼                                 
+                             ┎╍╍╍╍╍╍╍╍╍╍╍╍╍╍╍┓                         
                              ┃    Network    ┃                         
                              ┖━━━━━━━━━━━━━━━┛                         
 ```