Scopri come installare e configurare OpenVPN Server su Rocky Linux 8 seguendo il link sottostante;
Configura il server OpenVPN su Rocky Linux 8
Installa e configura il client OpenVPN su Rocky Linux 8
Installa il client OpenVPN su Rocky Linux 8
Installa il client OpenVPN su Rocky Linux 8 eseguendo i comandi seguenti;
dnf epel-release -y
dnf info openvpn
Available Packages
Name : openvpn
Version : 2.4.11
Release : 1.el8
Architecture : x86_64
Size : 543 k
Source : openvpn-2.4.11-1.el8.src.rpm
Repository : epel
Summary : A full-featured SSL VPN solution
URL : https://community.openvpn.net/
License : GPLv2
Description : OpenVPN is a robust and highly flexible tunneling application that uses all
: of the encryption, authentication, and certification features of the
: OpenSSL library to securely tunnel IP networks over a single UDP or TCP
: port. It can use the Marcus Franz Xaver Johannes Oberhumers LZO library
: for compression
È quindi possibile installare il client OpenVPN eseguendo il comando;
dnf install openvpn
Configura client OpenVPN su Rocky Linux 8
Per potersi connettere al server OpenVPN, è necessario creare la configurazione del client contenente il certificato CA, il certificato del server client e la chiave.
Se hai seguito la nostra guida sulla configurazione del server OpenVPN su Rocky Linux 8, abbiamo descritto come generare i file e le chiavi del certificato dei client.
Una volta generate le chiavi, copiale sul client e prendi nota del percorso in cui sono archiviate.
È inoltre necessario copiare la chiave HMAC e il certificato CA sul client.
È quindi possibile creare la configurazione del client OpenVPN.
Ad esempio, per creare un file di configurazione OpenVPN per il client, gentoo , i cui certificati e chiavi sono, gentoo.crt e gentoo.key;
vim gentoo.ovpn
client tls-client pull dev tun proto udp4 remote 192.168.60.19 1194 resolv-retry infinite nobind #user nobody #group nogroup persist-key persist-tun key-direction 1 remote-cert-tls server auth-nocache comp-lzo verb 3 auth SHA512 tls-auth ta.key 1 ca ca.crt cert gentoo.crt key gentoo.key
Nota che in questa configurazione, il certificato client, la chiave, il certificato CA e la chiave HMAC si trovano sullo stesso percorso della configurazione del client OpenVPN stessa, gentoo.ovpn.
ls -1 .
ca.crt
gentoo.crt
gentoo.key
gentoo.ovpn
ta.keyPer evitare problemi con i percorsi dei certificati e delle chiavi, puoi metterli inline nel file di configurazione;
client
tls-client
pull
dev tun
proto udp4
remote 192.168.60.19 1194
resolv-retry infinite
nobind
#user nobody
#group nogroup
persist-key
persist-tun
key-direction 1
remote-cert-tls server
auth-nocache
comp-lzo
verb 3
auth SHA512
<tls-auth>
-----BEGIN OpenVPN Static key V1-----
feb1af5407baa247d4e772c76aed6c75
...
-----END OpenVPN Static key V1-----
</tls-auth>
<ca>
-----BEGIN CERTIFICATE-----
MIIDTjCCAjagAwIBAgIUX0VQrHTgLDabUUIOAf7tD9cGp4YwDQYJKoZIhvcNAQEL
...
WA9BBk2shVWfR849Lmkep+GPyqHpU47dZAz37ARB2Gfu3w==
-----END CERTIFICATE-----
</ca>
<cert>
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
...
/7FvJaeLqmUHnvSs5eBlRZSgtOL19SCFkG0HXdnw3LtBaoHQXxgzOkDPW1+5
-----END CERTIFICATE-----
</cert>
<key>
-----BEGIN PRIVATE KEY-----
MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQC+DI7kg6MsRoCs
...
6WdLcNtWKAcU294xJEZoOA8/
-----END PRIVATE KEY-----
</key>
Fai lo stesso su tutti i server client per ogni utente che deve connettersi alla VPN.
Se hai notato, le righe seguenti sono commentate per evitare l'errore, ERRORE:comando di aggiunta percorso Linux non riuscito:programma esterno terminato con stato di errore:2 svuotando i percorsi creati prima di aggiungerli nuovamente alla riconnessione.
#user nobody #group nogroup
Il file di configurazione del client OpenVPN è ora pronto.
Connessione al server OpenVPN su Rocky Linux 8
Puoi quindi connetterti al server OpenVPN su richiesta o configurare il tuo server per stabilire un file di configurazione VPN ogni volta che il sistema si riavvia.
Connettiti a OpenVPN sulla riga di comando usando il comando openvpn
Per connetterti su richiesta, usa semplicemente openvpn comando come;
sudo openvpn client-config.ovpn
o
sudo openvpn --config client-config.ovpn
Dove client-config è il file di configurazione openvpn del client, come il file gentoo.ovpn sopra.
Se la connessione al server OpenVPN ha esito positivo, dovresti visualizzare un Initialization Sequence Completed .
Wed Jun 30 15:27:16 2021 OpenVPN 2.4.11 x86_64-redhat-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Apr 21 2021 Wed Jun 30 15:27:16 2021 library versions: OpenSSL 1.1.1g FIPS 21 Apr 2020, LZO 2.08 Wed Jun 30 15:27:16 2021 Outgoing Control Channel Authentication: Using 512 bit message hash 'SHA512' for HMAC authentication Wed Jun 30 15:27:16 2021 Incoming Control Channel Authentication: Using 512 bit message hash 'SHA512' for HMAC authentication Wed Jun 30 15:27:16 2021 TCP/UDP: Preserving recently used remote address: [AF_INET]192.168.60.19:1194 Wed Jun 30 15:27:16 2021 Socket Buffers: R=[212992->212992] S=[212992->212992] Wed Jun 30 15:27:16 2021 UDPv4 link local: (not bound) Wed Jun 30 15:27:16 2021 UDPv4 link remote: [AF_INET]192.168.60.19:1194 Wed Jun 30 15:27:16 2021 TLS: Initial packet from [AF_INET]192.168.60.19:1194, sid=7ec70642 fdcdad40 Wed Jun 30 15:27:16 2021 VERIFY OK: depth=1, CN=Kifarunix-demo CA Wed Jun 30 15:27:16 2021 VERIFY KU OK Wed Jun 30 15:27:16 2021 Validating certificate extended key usage Wed Jun 30 15:27:16 2021 ++ Certificate has EKU (str) TLS Web Server Authentication, expects TLS Web Server Authentication Wed Jun 30 15:27:16 2021 VERIFY EKU OK Wed Jun 30 15:27:16 2021 VERIFY OK: depth=0, CN=server Wed Jun 30 15:27:16 2021 WARNING: 'link-mtu' is used inconsistently, local='link-mtu 1586', remote='link-mtu 1602' Wed Jun 30 15:27:16 2021 WARNING: 'cipher' is used inconsistently, local='cipher BF-CBC', remote='cipher AES-256-CBC' Wed Jun 30 15:27:16 2021 WARNING: 'keysize' is used inconsistently, local='keysize 128', remote='keysize 256' Wed Jun 30 15:27:16 2021 Control Channel: TLSv1.3, cipher TLSv1.3 TLS_AES_256_GCM_SHA384, 2048 bit RSA Wed Jun 30 15:27:16 2021 [server] Peer Connection Initiated with [AF_INET]192.168.60.19:1194 Wed Jun 30 15:27:17 2021 SENT CONTROL [server]: 'PUSH_REQUEST' (status=1) Wed Jun 30 15:27:17 2021 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1 bypass-dhcp,dhcp-option DNS 208.67.222.222,dhcp-option DNS 192.168.10.3,route-gateway 10.8.0.1,topology subnet,ping 10,ping-restart 120,ifconfig 10.8.0.2 255.255.255.0,peer-id 0,cipher AES-256-GCM' Wed Jun 30 15:27:17 2021 OPTIONS IMPORT: timers and/or timeouts modified Wed Jun 30 15:27:17 2021 OPTIONS IMPORT: --ifconfig/up options modified Wed Jun 30 15:27:17 2021 OPTIONS IMPORT: route options modified Wed Jun 30 15:27:17 2021 OPTIONS IMPORT: route-related options modified Wed Jun 30 15:27:17 2021 OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified Wed Jun 30 15:27:17 2021 OPTIONS IMPORT: peer-id set Wed Jun 30 15:27:17 2021 OPTIONS IMPORT: adjusting link_mtu to 1625 Wed Jun 30 15:27:17 2021 OPTIONS IMPORT: data channel crypto options modified Wed Jun 30 15:27:17 2021 Data Channel: using negotiated cipher 'AES-256-GCM' Wed Jun 30 15:27:17 2021 Outgoing Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key Wed Jun 30 15:27:17 2021 Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key Wed Jun 30 15:27:17 2021 ROUTE_GATEWAY 10.0.2.2/255.255.255.0 IFACE=enp0s3 HWADDR=08:00:27:98:30:73 Wed Jun 30 15:27:17 2021 TUN/TAP device tun0 opened Wed Jun 30 15:27:17 2021 TUN/TAP TX queue length set to 100 Wed Jun 30 15:27:17 2021 /sbin/ip link set dev tun0 up mtu 1500 Wed Jun 30 15:27:17 2021 /sbin/ip addr add dev tun0 10.8.0.2/24 broadcast 10.8.0.255 Wed Jun 30 15:27:17 2021 /sbin/ip route add 192.168.60.19/32 via 10.0.2.2 Wed Jun 30 15:27:17 2021 /sbin/ip route add 0.0.0.0/1 via 10.8.0.1 Wed Jun 30 15:27:17 2021 /sbin/ip route add 128.0.0.0/1 via 10.8.0.1 Wed Jun 30 15:27:17 2021 Initialization Sequence Completed
Per controllare gli indirizzi IP;
ip add show tun0
9: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 100
link/none
inet 10.8.0.2/24 brd 10.8.0.255 scope global tun0
valid_lft forever preferred_lft forever
inet6 fe80::697:ce38:b852:540c/64 scope link stable-privacy
valid_lft forever preferred_lft foreverTestare la connettività al server VPN;
ping 10.8.0.1 -c 3
PING 10.8.0.1 (10.8.0.1) 56(84) bytes of data.
64 bytes from 10.8.0.1: icmp_seq=1 ttl=64 time=2.71 ms
64 bytes from 10.8.0.1: icmp_seq=2 ttl=64 time=2.42 ms
64 bytes from 10.8.0.1: icmp_seq=3 ttl=64 time=1.95 ms
--- 10.8.0.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 46ms
rtt min/avg/max/mdev = 1.952/2.362/2.713/0.316 msDovresti anche essere in grado di ottenere l'accesso a Internet a seconda della configurazione dei percorsi del server.
Esecuzione del client OpenVPN come servizio
Per stabilire connessioni automaticamente ogni volta che il server si riavvia, puoi abilitare il servizio di sistema del client OpenVPN.
Prima di poterlo fare, cambia l'estensione del tuo file di configurazione VPN da .ovpn a .conf . Sostituisci i nomi dei file di conseguenza.
cp gentoo.{ovpn,conf}
Copia il .conf file nella directory delle configurazioni del client OpenVPN, /etc/openvpn/client .
mv gentoo.conf /etc/openvpn/client Quindi, disabilita SELinux (non lo consiglio però, -:));
setenforce 0 && sed -i 's/=enforcing/=permissive/' /etc/selinux/config
Avvia il servizio di sistema del client OpenVPN. Sostituisci il nome gentoo con il nome del tuo file di configurazione .conf.
systemctl start [email protected]
Per controllare lo stato;
systemctl status [email protected]
● [email protected] - OpenVPN tunnel for gentoo Loaded: loaded (/usr/lib/systemd/system/[email protected]; disabled; vendor preset: disabled) Active: active (running) since Wed 2021-06-30 15:48:47 EDT; 12s ago Docs: man:openvpn(8) https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage https://community.openvpn.net/openvpn/wiki/HOWTO Main PID: 39782 (openvpn) Status: "Initialization Sequence Completed" Tasks: 1 (limit: 11272) Memory: 1.6M CGroup: /system.slice/system-openvpn\x2dclient.slice/[email protected] └─39782 /usr/sbin/openvpn --suppress-timestamps --nobind --config gentoo.conf Jun 30 15:48:48 localhost.localdomain openvpn[39782]: Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key Jun 30 15:48:48 localhost.localdomain openvpn[39782]: ROUTE_GATEWAY 10.0.2.2/255.255.255.0 IFACE=enp0s3 HWADDR=08:00:27:98:30:73 Jun 30 15:48:48 localhost.localdomain openvpn[39782]: TUN/TAP device tun0 opened Jun 30 15:48:48 localhost.localdomain openvpn[39782]: TUN/TAP TX queue length set to 100 Jun 30 15:48:48 localhost.localdomain openvpn[39782]: /sbin/ip link set dev tun0 up mtu 1500 Jun 30 15:48:48 localhost.localdomain openvpn[39782]: /sbin/ip addr add dev tun0 10.8.0.2/24 broadcast 10.8.0.255 Jun 30 15:48:48 localhost.localdomain openvpn[39782]: /sbin/ip route add 192.168.60.19/32 via 10.0.2.2 Jun 30 15:48:48 localhost.localdomain openvpn[39782]: /sbin/ip route add 0.0.0.0/1 via 10.8.0.1 Jun 30 15:48:48 localhost.localdomain openvpn[39782]: /sbin/ip route add 128.0.0.0/1 via 10.8.0.1 Jun 30 15:48:48 localhost.localdomain openvpn[39782]: Initialization Sequence Completed
Per consentirne l'esecuzione all'avvio del sistema;
systemctl enable [email protected]
Hai installato e configurato correttamente il client OpenVPN Rocky Linux 8.
Questo ci porta alla fine del nostro tutorial su come installare e configurare il client OpenVPN su Rocky Linux 8.
Altri tutorial
Assegna indirizzi IP statici ai client OpenVPN
Configura l'autenticazione basata su LDAP OpenVPN