ProHoster > Блог > Whakahaerenga > Ko te werohanga poka UDP ngawari ma te whakamahi i te kauhanga IPIP hei tauira

Ko te werohanga poka UDP ngawari ma te whakamahi i te kauhanga IPIP hei tauira

Pai rā!

I roto i tenei tuhinga e hiahia ana ahau ki te korero ki a koe me pehea taku whakatinana (kotahi ano) he tuhinga Bash mo te hono i nga rorohiko e rua kei muri i te NAT ma te whakamahi i te hangarau pupuhi poka UDP ma te whakamahi i te Ubuntu/Debian OS hei tauira.

Ko te whakarite hononga he maha nga waahanga:

  1. Ka timata i te node ka tatari kia rite te node mamao;
  2. Te whakatau i te wahitau IP waho me te tauranga UDP;
  3. Te whakawhiti i tetahi wahitau IP waho me te tauranga UDP ki tetahi kaihautu mamao;
  4. Te whiwhi i tetahi wahitau IP waho me te tauranga UDP mai i te kaihautu mamao;
  5. Whakaritenga o te kauhanga IPIP;
  6. Aroturuki hononga;
  7. Mena kua ngaro te hononga, mukua te kauhanga IPIP.

I whakaaro ahau mo te wa roa me te whakaaro tonu he aha te mea ka taea te whakamahi hei whakawhiti raraunga i waenga i nga pona, ko te mea ngawari me te tere mo au i tenei wa kei te mahi ma Yandex.disk.

  • Tuatahi, he ngawari ki te whakamahi - me 3 nga mahi: hanga, panui, muku. Me te curl ko:
    Waihanga:

    curl -s -X MKCOL --user "$usename:$password" https://webdav.yandex.ru/$folder

    Panui:

    curl -s --user "$usename:$password" -X PROPFIND -H "Depth: 1" https://webdav.yandex.ru/$folder

    Mukua:

    curl -s -X DELETE --user "$usename:$password" https://webdav.yandex.ru/$folder
  • Tuarua, he ngawari ki te whakauru: 
    apt install curl

Hei whakatau i te wahitau IP o waho me te tauranga UDP, whakamahia te tono stun-client:

stun stun.sipnet.ru -v -p $1 2>&1 | grep "MappedAddress"

Tāutatanga me te whakahau:

apt install stun-client

Hei whakarite i tetahi kohanga, ka whakamahia nga taputapu OS paerewa mai i te kete iproute2. Kei te noho maha tunnels ka taea te whakanui ma te whakamahi i nga tikanga paerewa (L2TPv3, GRE, me etahi atu), engari i whiriwhiria e ahau te IPIP na te mea he iti noa nga kawenga taapiri i runga i te punaha. I whakamatau ahau i te L2TPv3 mo te UDP, a ka pouri ahau, 10 nga wa i heke iho te tere, engari he maha nga here e pa ana ki nga kaiwhakarato me tetahi atu mea. I te mea kei te mahi te kauhanga IPIP i te taumata IP, ka whakamahia te kauhanga FOU ki te mahi i te taumata tauranga UDP. Hei whakarite i tetahi kauhanga IPIP me:

— utaina te kōwae FOU:

modprobe fou

— whakarongo ki te tauranga rohe:

ip fou add port $localport ipproto 4

— hanga he kauhanga:

ip link add name fou$name type ipip remote $remoteip local $localip encap fou  encap-sport $localport encap-dport $remoteport

— whakaarahia te atanga kauhanga:

ip link set up dev fou$name

— tautapa i nga wahitau IP a-rohe, a-roto hoki o te kauhanga:

ip addr add $intIP peer $peerip dev fou$name

Mukua he kauhanga:

ip link del dev fou$name

ip fou del port $localport

Ka aro turukihia te ahua o te kauhanga ma te ping i ia wa ki te wahitau IP o roto o te kauhanga node mamao me te whakahau:

ping -c 1 $peerip -s 0

Ko te ping o ia wa ka hiahiatia hei pupuri i te hongere, ki te kore, ka mangere te kauhanga, ka whakawāteahia nga ripanga NAT i runga i nga pouara katahi ka pakaru te hononga.

Mena ka ngaro te ping, ka mukua te kauhanga IPIP ka tatari mo te reri mai i te kaihautu mamao.

Ko te tuhinga ake:

#!/bin/bash
username="[email protected]"
password="password"
folder="vpnid"
intip="10.0.0.1"
localport=`shuf -i 10000-65000 -n 1`
cid=`shuf -i 10000-99999 -n 1`
tid=`shuf -i 10-99 -n 1`
function yaread {
        curl -s --user "$1:$2" -X PROPFIND -H "Depth: 1" https://webdav.yandex.ru/$3 | sed 's/></>n</g' | grep "displayname" | sed 's/<d:displayname>//g' | sed 's/</d:displayname>//g' | grep -v $3 | grep -v $4 | sort -r
}
function yacreate {
        curl -s -X MKCOL --user "$1:$2" https://webdav.yandex.ru/$3
}
function yadelete {
        curl -s -X DELETE --user "$1:$2" https://webdav.yandex.ru/$3
}
function myipport {
        stun stun.sipnet.ru -v -p $1 2>&1 | grep "MappedAddress" | sort | uniq | awk '{print $3}' | head -n1
}
function tunnel-up {
	modprobe fou
	ip fou add port $4 ipproto 4
	ip link add name fou$7 type ipip remote $1 local $3 encap fou encap-sport $4 encap-dport $2
	ip link set up dev fou$7
	ip addr add $6 peer $5 dev fou$7
}
function tunnel-check {
	sleep 10
        pings=0
        until [[ $pings == 4 ]]; do
                if ping -c 1 $1 -s 0 &>/dev/null;
                        then    echo -n .; n=0
                        else    echo -n !; ((pings++))
                fi
		sleep 15
        done
}
function tunnel-down {
	ip link del dev fou$1
	ip fou del port $2
}
trap 'echo -e "nDisconnecting..." && yadelete $username $password $folder; tunnel-down $tunnelid $localport; echo "IPIP tunnel disconnected!"; exit 1' 1 2 3 8 9 14 15
until [[ -n $end ]]; do
    yacreate $username $password $folder
    until [[ -n $ip ]]; do
        mydate=`date +%s`
        timeout="60"
        list=`yaread $username $password $folder $cid | head -n1`
        yacreate $username $password $folder/$mydate:$cid
        for l in $list; do
                if [ `echo $l | sed 's/:/ /g' | awk {'print $1'}` -ge $(($mydate-65)) ]; then
			#echo $list
                        myipport=`myipport $localport`
                        yacreate $username $password $folder/$mydate:$cid:$myipport:$intip:$tid
                        timeout=$(( $timeout + `echo $l | sed 's/:/ /g' | awk {'print $1'}` - $mydate + 3 ))
                        ip=`echo $l | sed 's/:/ /g' | awk '{print $3}'`
                        port=`echo $l | sed 's/:/ /g' | awk '{print $4}'`
                        peerip=`echo $l | sed 's/:/ /g' | awk '{print $5}'`
			peerid=`echo $l | sed 's/:/ /g' | awk '{print $6}'`
			if [[ -n $peerid ]]; then tunnelid=$(($peerid*$tid)); fi
                fi
        done
        if ( [[ -z "$ip" ]] && [ "$timeout" -gt 0 ] ) ; then
                echo -n "!"
                sleep $timeout
        fi
    done
    localip=`ip route get $ip | head -n1 | sed 's|.*src ||' | cut -d' ' -f1`
    tunnel-up $ip $port $localip $localport $peerip $intip $tunnelid
    tunnel-check $peerip
    tunnel-down $tunnelid $localport
    yadelete $username $password $folder
    unset ip port myipport
done
exit 0

Ngā rerekētanga ingoa kaiwhakamahi, kupuhipa и kōpaki kia rite ki nga taha e rua, engari whakaaro - rereke, hei tauira: 10.0.0.1 me 10.0.0.2. Me tukutahi te wa i runga i nga pona. Ka taea e koe te whakahaere i te tuhinga penei:

nohup script.sh &

E hiahia ana ahau ki te kukume i to aro ki te meka kaore i te haumaru te kauhanga IPIP mai i te tirohanga o te meka kaore i te whakamunatia nga waka, engari ka taea te whakaoti ma te whakamahi i te IPsec over tenei tuhinga, he ahua ngawari me te marama ki ahau.

Kua maha nga wiki e whakamahi ana ahau i tenei tuhinga tuhi ki te hono atu ki tetahi PC mahi, kaore au i kite he raru. He watea mo te whakatakoto me te wareware.

Tena pea kei a koe nga korero me nga whakaaro, ka koa ahau ki te whakarongo.

Mauruuru koe mo to aro!

Source: will.com

Tāpiri i te kōrero