linux·À»ðǽiptablesÏêϸ½Ì³Ì
2.1 ¿ò¼Üͼ
-->PREROUTING-->[ROUTE]-->FORWARD-->POSTROUTING-->
mangle | mangle ^ mangle
nat | filter | nat
| |
| |
v |
INPUT OUTPUT
| mangle ^ mangle
| filter | nat
v ------>local------->| filter
2.2 竼걒
±í
filter£º ¹ËÃû˼Ò壬ÓÃÓÚ¹ýÂ˵Äʱºò
nat£º ¹ËÃû˼Ò壬ÓÃÓÚ×ö NAT µÄʱºò
NAT£ºNetwork Address Translator
Á´
INPUT£º λÓÚ filter ±í£¬Æ¥ÅäÄ¿µÄ IP ÊDZ¾»úµÄÊý¾Ý°ü
FORWARD£º λÓÚ filter ±í£¬Æ¥Åä´©¹ý±¾»úµÄÊý¾Ý°ü£¬
PREROUTING£º λÓÚ nat ±í£¬ÓÃÓÚÐÞ¸ÄÄ¿µÄµØÖ·£¨DNAT£©
POSTROUTING£ºÎ»ÓÚ nat ±í£¬ÓÃÓÚÐÞ¸ÄÔ´µØÖ· £¨SNAT£©
3.1 iptables Óï·¨¸ÅÊö
iptables [-t Òª²Ù×÷µÄ±í]
<²Ù×÷ÃüÁî>
[Òª²Ù×÷µÄÁ´]
&n
Ïà¹ØÎĵµ£º
gnome: µãÓÒ¼ü---new Launcher£¬ÊäÈë¿ì½Ý·½Ê½µÄÃû³Æ£¬²¢Ñ¡ÔñÖ´ÐеijÌÐò¼´¿É¡£
kde: ÓÒ¼üµ¥»÷×ÀÃæµÄ¿Õ°×´¦£¬ÔÚµ¯³öµÄ¶Ô»°¿òÖÐÑ¡“н¨£Ó¦ÓóÌÐòÁ´½Ó”¡£ÔÙÔÚµ¯³öµÄ´°¿ÚÖеã“Ö´ÐД£¬ÔÚÃüÁîÀ¸ÖеãºóÃæµÄä¯ÀÀ¼ü£¬ÕÒµ½ÏàÓ¦µÄ³ÌÐò¡£Ôٵ㓳£¹æ”£¬½øÐÐÈ¡Ãû¡¢¸ü¸Äͼ±êµÈ²Ù×÷£¬×îºóµãÈ·¶¨£¬ÕâÑù ......
ת×Ô£ºhttp://www.linuxdiyf.com/bbs/viewthread.php?tid=106169
LinuxϽ¨ÒéʹÓÃvsftp£¬°²È«¼òµ¥ÊµÓÃ
vsftp¼´Very Security FTP£¬¹ËÃû˼Ò壬·Ç³£°²È«µÄFTP·þÎñÆ÷¡£
Ŀ¼
1 vsFTP·þÎñÆ÷µÄ°²×°
1.1 ÄäÃû·þÎñÆ÷µÄÁ¬½Ó£¨¶ÀÁ¢µÄ·þÎñÆ÷£©
1.2 ¿ªÆôÄäÃûFTP·þÎñÆ÷ÉÏ´«È¨ÏÞ
1.3 ¿ªÆôÄäÃû·þÎñÆ÷Ï´«µÄȨÏÞ
1.4 ......
/************************
cÓïÑÔ±àдµÄtcp socketͨÐŵÄserver¶Ë¡£
¿ÉÒÔ³ÖÐø¼àÌýmyprotÖ¸¶¨µÄ¶Ë¿Ú
´òÓ¡¶Ë¿Ú½ÓÊÕµ½µÄ×Ö·ûÁ÷
Í·ÎļþÒòΪ¼âÀ¨ºÅ±»×ªÒ壬ËùÒÔÓÃÁËÒýºÅ
************************/
#include "stdio.h"
#include "stdlib.h"
#include "errno.h"
#include "string.h& ......
LinuxµÄ±äÁ¿¿É·ÖΪÁ½Àࣺ»·¾³±äÁ¿ºÍ±¾µØ±äÁ¿
»·¾³±äÁ¿£¬»òÕß³ÆΪȫ¾Ö±äÁ¿£¬´æÔÚÓëËùÓеÄshellÖУ¬ÔÚÄãµÇ½ϵͳµÄʱºò¾ÍÒѾÓÐÁËÏàÓ¦µÄϵͳ¶¨ÒåµÄ»·¾³±äÁ¿ÁË¡£LinuxµÄ»·¾³±äÁ¿¾ßÓм̳ÐÐÔ£¬¼´×Óshell»á¼Ì³Ð¸¸shellµÄ»·¾³±äÁ¿¡£
±¾µØ±äÁ¿£¬µ±Ç°shellÖеıäÁ¿£¬ºÜÏÔÈ»±¾µØ±äÁ¿Öп϶¨°üº¬»·¾³±äÁ¿¡£LinuxµÄ±¾µØ±äÁ¿µÄ·Ç»·¾³± ......