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unixbhaskar
Tux's lil' helper
Tux's lil' helper


Joined: 29 Nov 2007
Posts: 94
Location: India

PostPosted: Sun Mar 25, 2018 6:17 am    Post subject: Openvpn not working Reply with quote

I am stuck with this : tun device not creating ....ifconfig/ip doesn't show it....although kernel compile opton tuned to "y"

Here is my openvpn.conf
Code:

client
dev tun
proto udp
remote in.privateinternetaccess.com 1198
resolv-retry infinite
nobind
persist-key
persist-tun
cipher aes-128-cbc
auth sha1
tls-client
remote-cert-tls server
auth-user-pass
comp-lzo
verb 1
reneg-sec 0
crl-verify crl.rsa.2048.pem
ca ca.rsa.2048.crt
disable-occ
auth-nocache
auth-user-pass login.conf
log  /etc/openvpn/openvpn.log
verb 4
status openvpn-status.log
pull

This is what I am getting while starting the service :
Code:

root@GentooLinux_11:42:51_Sun Mar 25:/etc/openvpn # /etc/init.d/openvpn restart
 * Stopping openvpn ...
 * start-stop-daemon: no matching processes found                                                                                              [ ok ]
 * Starting openvpn ...                                                                                                                        [ ok ]
 * WARNING: openvpn has started, but is inactive



And here is the log says : missing cipher and few UNDEF stuff ...
Code:

root@GentooLinux_11:43:44_Sun Mar 25:/etc/openvpn # cat openvpn.log
Sun Mar 25 11:42:58 2018 us=437803 Current Parameter Settings:
Sun Mar 25 11:42:58 2018 us=437856   config = '/etc/openvpn/openvpn.conf'
Sun Mar 25 11:42:58 2018 us=437867   mode = 0
Sun Mar 25 11:42:58 2018 us=437874   persist_config = DISABLED
Sun Mar 25 11:42:58 2018 us=437881   persist_mode = 1
Sun Mar 25 11:42:58 2018 us=437887   show_ciphers = DISABLED
Sun Mar 25 11:42:58 2018 us=437893   show_digests = DISABLED
Sun Mar 25 11:42:58 2018 us=437899   show_engines = DISABLED
Sun Mar 25 11:42:58 2018 us=437905   genkey = DISABLED
Sun Mar 25 11:42:58 2018 us=437911   key_pass_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=437917   show_tls_ciphers = DISABLED
Sun Mar 25 11:42:58 2018 us=437923   connect_retry_max = 0
Sun Mar 25 11:42:58 2018 us=437929 Connection profiles [0]:
Sun Mar 25 11:42:58 2018 us=437935   proto = udp
Sun Mar 25 11:42:58 2018 us=437940   local = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=437947   local_port = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=437953   remote = 'in.privateinternetaccess.com'
Sun Mar 25 11:42:58 2018 us=437959   remote_port = '1198'
Sun Mar 25 11:42:58 2018 us=437967   remote_float = DISABLED
Sun Mar 25 11:42:58 2018 us=437974   bind_defined = DISABLED
Sun Mar 25 11:42:58 2018 us=437997   bind_local = DISABLED
Sun Mar 25 11:42:58 2018 us=438008   bind_ipv6_only = DISABLED
Sun Mar 25 11:42:58 2018 us=438014   connect_retry_seconds = 5
Sun Mar 25 11:42:58 2018 us=438020   connect_timeout = 120
Sun Mar 25 11:42:58 2018 us=438026   socks_proxy_server = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438032   socks_proxy_port = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438038   tun_mtu = 1500
Sun Mar 25 11:42:58 2018 us=438044   tun_mtu_defined = ENABLED
Sun Mar 25 11:42:58 2018 us=438050   link_mtu = 1500
Sun Mar 25 11:42:58 2018 us=438055   link_mtu_defined = DISABLED
Sun Mar 25 11:42:58 2018 us=438061   tun_mtu_extra = 0
Sun Mar 25 11:42:58 2018 us=438067   tun_mtu_extra_defined = DISABLED
Sun Mar 25 11:42:58 2018 us=438073   mtu_discover_type = -1
Sun Mar 25 11:42:58 2018 us=438079   fragment = 0
Sun Mar 25 11:42:58 2018 us=438085   mssfix = 1450
Sun Mar 25 11:42:58 2018 us=438090   explicit_exit_notification = 0
Sun Mar 25 11:42:58 2018 us=438096 Connection profiles END
Sun Mar 25 11:42:58 2018 us=438102   remote_random = DISABLED
Sun Mar 25 11:42:58 2018 us=438108   ipchange = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438114   dev = 'tun'
Sun Mar 25 11:42:58 2018 us=438120   dev_type = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438126   dev_node = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438131   lladdr = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438137   topology = 1
Sun Mar 25 11:42:58 2018 us=438143   ifconfig_local = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438149   ifconfig_remote_netmask = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438155   ifconfig_noexec = DISABLED
Sun Mar 25 11:42:58 2018 us=438160   ifconfig_nowarn = DISABLED
Sun Mar 25 11:42:58 2018 us=438166   ifconfig_ipv6_local = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438172   ifconfig_ipv6_netbits = 0
Sun Mar 25 11:42:58 2018 us=438178   ifconfig_ipv6_remote = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438183   shaper = 0
Sun Mar 25 11:42:58 2018 us=438189   mtu_test = 0
Sun Mar 25 11:42:58 2018 us=438195   mlock = DISABLED
Sun Mar 25 11:42:58 2018 us=438201   keepalive_ping = 0
Sun Mar 25 11:42:58 2018 us=438206   keepalive_timeout = 0
Sun Mar 25 11:42:58 2018 us=438212   inactivity_timeout = 0
Sun Mar 25 11:42:58 2018 us=438218   ping_send_timeout = 0
Sun Mar 25 11:42:58 2018 us=438224   ping_rec_timeout = 0
Sun Mar 25 11:42:58 2018 us=438229   ping_rec_timeout_action = 0
Sun Mar 25 11:42:58 2018 us=438235   ping_timer_remote = DISABLED
Sun Mar 25 11:42:58 2018 us=438241   remap_sigusr1 = 0
Sun Mar 25 11:42:58 2018 us=438246   persist_tun = ENABLED
Sun Mar 25 11:42:58 2018 us=438252   persist_local_ip = DISABLED
Sun Mar 25 11:42:58 2018 us=438257   persist_remote_ip = DISABLED
Sun Mar 25 11:42:58 2018 us=438263   persist_key = ENABLED
Sun Mar 25 11:42:58 2018 us=438269   passtos = DISABLED
Sun Mar 25 11:42:58 2018 us=438274   resolve_retry_seconds = 1000000000
Sun Mar 25 11:42:58 2018 us=438280   resolve_in_advance = DISABLED
Sun Mar 25 11:42:58 2018 us=438290   username = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438297   groupname = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438303   chroot_dir = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438309   cd_dir = '/etc/openvpn'
Sun Mar 25 11:42:58 2018 us=438315   writepid = '/var/run/openvpn.pid'
Sun Mar 25 11:42:58 2018 us=438321   up_script = '/etc/openvpn/up.sh'
Sun Mar 25 11:42:58 2018 us=438327   down_script = '/etc/openvpn/down.sh'
Sun Mar 25 11:42:58 2018 us=438333   down_pre = ENABLED
Sun Mar 25 11:42:58 2018 us=438339   up_restart = ENABLED
Sun Mar 25 11:42:58 2018 us=438345   up_delay = ENABLED
Sun Mar 25 11:42:58 2018 us=438351   daemon = ENABLED
Sun Mar 25 11:42:58 2018 us=438357   inetd = 0
Sun Mar 25 11:42:58 2018 us=438363   log = ENABLED
Sun Mar 25 11:42:58 2018 us=438368   suppress_timestamps = DISABLED
Sun Mar 25 11:42:58 2018 us=438374   machine_readable_output = DISABLED
Sun Mar 25 11:42:58 2018 us=438380   nice = 0
Sun Mar 25 11:42:58 2018 us=438386   verbosity = 4
Sun Mar 25 11:42:58 2018 us=438392   mute = 0
Sun Mar 25 11:42:58 2018 us=438398   gremlin = 0
Sun Mar 25 11:42:58 2018 us=438403   status_file = 'openvpn-status.log'
Sun Mar 25 11:42:58 2018 us=438409   status_file_version = 1
Sun Mar 25 11:42:58 2018 us=438415   status_file_update_freq = 60
Sun Mar 25 11:42:58 2018 us=438421   occ = DISABLED
Sun Mar 25 11:42:58 2018 us=438426   rcvbuf = 0
Sun Mar 25 11:42:58 2018 us=438432   sndbuf = 0
Sun Mar 25 11:42:58 2018 us=438438   mark = 0
Sun Mar 25 11:42:58 2018 us=438444   sockflags = 0
Sun Mar 25 11:42:58 2018 us=438450   fast_io = DISABLED
Sun Mar 25 11:42:58 2018 us=438456   comp.alg = 2
Sun Mar 25 11:42:58 2018 us=438461   comp.flags = 1
Sun Mar 25 11:42:58 2018 us=438467   route_script = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438474   route_default_gateway = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438480   route_default_metric = 0
Sun Mar 25 11:42:58 2018 us=438485   route_noexec = DISABLED
Sun Mar 25 11:42:58 2018 us=438491   route_delay = 0
Sun Mar 25 11:42:58 2018 us=438497   route_delay_window = 30
Sun Mar 25 11:42:58 2018 us=438503   route_delay_defined = DISABLED
Sun Mar 25 11:42:58 2018 us=438509   route_nopull = DISABLED
Sun Mar 25 11:42:58 2018 us=438515   route_gateway_via_dhcp = DISABLED
Sun Mar 25 11:42:58 2018 us=438521   allow_pull_fqdn = DISABLED
Sun Mar 25 11:42:58 2018 us=438527   management_addr = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438533   management_port = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438539   management_user_pass = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438545   management_log_history_cache = 250
Sun Mar 25 11:42:58 2018 us=438551   management_echo_buffer_size = 100
Sun Mar 25 11:42:58 2018 us=438557   management_write_peer_info_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438562   management_client_user = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438569   management_client_group = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438575   management_flags = 0
Sun Mar 25 11:42:58 2018 us=438580   shared_secret_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438586   key_direction = 0
Sun Mar 25 11:42:58 2018 us=438592   ciphername = 'aes-128-cbc'
Sun Mar 25 11:42:58 2018 us=438598   ncp_enabled = ENABLED
Sun Mar 25 11:42:58 2018 us=438604   ncp_ciphers = 'AES-256-GCM:AES-128-GCM'
Sun Mar 25 11:42:58 2018 us=438610   authname = 'sha1'
Sun Mar 25 11:42:58 2018 us=438616   prng_hash = 'SHA1'
Sun Mar 25 11:42:58 2018 us=438622   prng_nonce_secret_len = 16
Sun Mar 25 11:42:58 2018 us=438628   keysize = 0
Sun Mar 25 11:42:58 2018 us=438634   replay = ENABLED
Sun Mar 25 11:42:58 2018 us=438639   mute_replay_warnings = DISABLED
Sun Mar 25 11:42:58 2018 us=438645   replay_window = 64
Sun Mar 25 11:42:58 2018 us=438651   replay_time = 15
Sun Mar 25 11:42:58 2018 us=438657   packet_id_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438663   use_iv = ENABLED
Sun Mar 25 11:42:58 2018 us=438669   test_crypto = DISABLED
Sun Mar 25 11:42:58 2018 us=438675   use_prediction_resistance = DISABLED
Sun Mar 25 11:42:58 2018 us=438680   tls_server = DISABLED
Sun Mar 25 11:42:58 2018 us=438689   tls_client = ENABLED
Sun Mar 25 11:42:58 2018 us=438696   key_method = 2
Sun Mar 25 11:42:58 2018 us=438702   ca_file = 'ca.rsa.2048.crt'
Sun Mar 25 11:42:58 2018 us=438708   ca_path = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438714   dh_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438720   cert_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438726   extra_certs_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438732   priv_key_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438738   cipher_list = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438744   tls_verify = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438750   tls_export_cert = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438756   verify_x509_type = 0
Sun Mar 25 11:42:58 2018 us=438762   verify_x509_name = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438767   crl_file = 'crl.rsa.2048.pem'
Sun Mar 25 11:42:58 2018 us=438773   ns_cert_type = 0
Sun Mar 25 11:42:58 2018 us=438779   remote_cert_ku[i] = 65535
Sun Mar 25 11:42:58 2018 us=438785   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438791   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438797   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438802   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438808   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438813   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438819   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438824   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438830   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438836   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438841   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438847   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438853   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438858   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438864   remote_cert_ku[i] = 0
Sun Mar 25 11:42:58 2018 us=438870   remote_cert_eku = 'TLS Web Server Authentication'
Sun Mar 25 11:42:58 2018 us=438876   ssl_flags = 0
Sun Mar 25 11:42:58 2018 us=438882   tls_timeout = 2
Sun Mar 25 11:42:58 2018 us=438888   renegotiate_bytes = -1
Sun Mar 25 11:42:58 2018 us=438894   renegotiate_packets = 0
Sun Mar 25 11:42:58 2018 us=438900   renegotiate_seconds = 0
Sun Mar 25 11:42:58 2018 us=438906   handshake_window = 60
Sun Mar 25 11:42:58 2018 us=438911   transition_window = 3600
Sun Mar 25 11:42:58 2018 us=438917   single_session = DISABLED
Sun Mar 25 11:42:58 2018 us=438923   push_peer_info = DISABLED
Sun Mar 25 11:42:58 2018 us=438929   tls_exit = DISABLED
Sun Mar 25 11:42:58 2018 us=438935   tls_auth_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438941   tls_crypt_file = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=438950   server_network = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=438957   server_netmask = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=438968   server_network_ipv6 = ::
Sun Mar 25 11:42:58 2018 us=438975   server_netbits_ipv6 = 0
Sun Mar 25 11:42:58 2018 us=438995   server_bridge_ip = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=439008   server_bridge_netmask = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=439016   server_bridge_pool_start = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=439022   server_bridge_pool_end = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=439028   ifconfig_pool_defined = DISABLED
Sun Mar 25 11:42:58 2018 us=439037   ifconfig_pool_start = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=439045   ifconfig_pool_end = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=439051   ifconfig_pool_netmask = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=439057   ifconfig_pool_persist_filename = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=439063   ifconfig_pool_persist_refresh_freq = 600
Sun Mar 25 11:42:58 2018 us=439069   ifconfig_ipv6_pool_defined = DISABLED
Sun Mar 25 11:42:58 2018 us=439075   ifconfig_ipv6_pool_base = ::
Sun Mar 25 11:42:58 2018 us=439082   ifconfig_ipv6_pool_netbits = 0
Sun Mar 25 11:42:58 2018 us=439088   n_bcast_buf = 256
Sun Mar 25 11:42:58 2018 us=439094   tcp_queue_limit = 64
Sun Mar 25 11:42:58 2018 us=439100   real_hash_size = 256
Sun Mar 25 11:42:58 2018 us=439106   virtual_hash_size = 256
Sun Mar 25 11:42:58 2018 us=439112   client_connect_script = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=439121   learn_address_script = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=439128   client_disconnect_script = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=439134   client_config_dir = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=439141   ccd_exclusive = DISABLED
Sun Mar 25 11:42:58 2018 us=439147   tmp_dir = '/tmp'
Sun Mar 25 11:42:58 2018 us=439152   push_ifconfig_defined = DISABLED
Sun Mar 25 11:42:58 2018 us=439159   push_ifconfig_local = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=439165   push_ifconfig_remote_netmask = 0.0.0.0
Sun Mar 25 11:42:58 2018 us=439171   push_ifconfig_ipv6_defined = DISABLED
Sun Mar 25 11:42:58 2018 us=439177   push_ifconfig_ipv6_local = ::/0
Sun Mar 25 11:42:58 2018 us=439184   push_ifconfig_ipv6_remote = ::
Sun Mar 25 11:42:58 2018 us=439190   enable_c2c = DISABLED
Sun Mar 25 11:42:58 2018 us=439196   duplicate_cn = DISABLED
Sun Mar 25 11:42:58 2018 us=439202   cf_max = 0
Sun Mar 25 11:42:58 2018 us=439208   cf_per = 0
Sun Mar 25 11:42:58 2018 us=439214   max_clients = 1024
Sun Mar 25 11:42:58 2018 us=439220   max_routes_per_client = 256
Sun Mar 25 11:42:58 2018 us=439225   auth_user_pass_verify_script = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=439231   auth_user_pass_verify_script_via_file = DISABLED
Sun Mar 25 11:42:58 2018 us=439237   auth_token_generate = DISABLED
Sun Mar 25 11:42:58 2018 us=439243   auth_token_lifetime = 0
Sun Mar 25 11:42:58 2018 us=439249   port_share_host = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=439255   port_share_port = '[UNDEF]'
Sun Mar 25 11:42:58 2018 us=439261   client = ENABLED
Sun Mar 25 11:42:58 2018 us=439267   pull = ENABLED
Sun Mar 25 11:42:58 2018 us=439273   auth_user_pass_file = 'login.conf'
Sun Mar 25 11:42:58 2018 us=439280 OpenVPN 2.4.4 x86_64-pc-linux-gnu [SSL (mbed TLS)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Mar 25 2018
Sun Mar 25 11:42:58 2018 us=439293 library versions: mbed TLS 2.7.1, LZO 2.09
Sun Mar 25 11:42:58 2018 us=439725 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Sun Mar 25 11:42:58 2018 us=440103 Cipher algorithm 'aes-128-cbc' not found
Sun Mar 25 11:42:58 2018 us=440128 Cipher aes-128-cbc not supported
Sun Mar 25 11:42:58 2018 us=440143 Exiting due to fatal error


Hope someone pinpoint me the inssue. Thank you.
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bbgermany
Veteran
Veteran


Joined: 21 Feb 2005
Posts: 1776
Location: Oranienburg/Germany

PostPosted: Mon Mar 26, 2018 6:26 am    Post subject: Reply with quote

Hi,

1st: do you have sys-apps/usermode-utilities installed?
2nd: do you have a net.tun0 link in /etc/init.d which is installed in default runlevel?

greets, bb
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unixbhaskar
Tux's lil' helper
Tux's lil' helper


Joined: 29 Nov 2007
Posts: 94
Location: India

PostPosted: Mon Mar 26, 2018 7:33 am    Post subject: Reply with quote

bbgermany wrote:
Hi,

1st: do you have sys-apps/usermode-utilities installed?
2nd: do you have a net.tun0 link in /etc/init.d which is installed in default runlevel?

greets, bb


Thanks man for the heads up...here are stuff I did

Code:

root@GentooLinux_12:57:59_Mon Mar 26:~ # genlop -t sys-apps/usermode-utilities
 * sys-apps/usermode-utilities
                                                                                                                                                     
     Tue Jul 18 15:36:14 2017 >>> sys-apps/usermode-utilities-20070815-r3
       merge time: 10 seconds.                                                                                                                       

     Fri Jan 12 21:52:23 2018 >>> sys-apps/usermode-utilities-20070815-r3                                                                           
       merge time: 14 seconds.



Next :

Well it was not there ..so I created it

Code:


root@GentooLinux_13:00:01_Mon Mar 26:/etc/init.d # ls -al net.tun0
lrwxrwxrwx 1 root root 6 Mar 26 13:00 net.tun0 -> net.lo

_________________
Musing with GNU/Linux :)

Lenovo Thinkpad x250
x86_64 Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz GenuineIntel GNU/Linux
RAM : 8 GB
Kernel :Linux GentooLinux 4.15.12-GentooLinux
OS: Gentoo/Arch/Slackware/Debian/openSUSE/Fedora
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guitou
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Joined: 02 Oct 2003
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PostPosted: Mon Mar 26, 2018 10:16 am    Post subject: Reply with quote

Hello.

Don't know anything about vpn setup, but looking at error message, I wonder if it could be as simple as a missing kernel option (CONFIG_CRYPTO_CBC).

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PostPosted: Mon Mar 26, 2018 1:14 pm    Post subject: Reply with quote

unixbhaskar wrote:

Next :

Well it was not there ..so I created it

Code:


root@GentooLinux_13:00:01_Mon Mar 26:/etc/init.d # ls -al net.tun0
lrwxrwxrwx 1 root root 6 Mar 26 13:00 net.tun0 -> net.lo


Did you start the interface and restart the openvpn daemon and checked again?

greets, bb
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unixbhaskar
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PostPosted: Tue Mar 27, 2018 10:47 am    Post subject: Reply with quote

guitou wrote:
Hello.

Don't know anything about vpn setup, but looking at error message, I wonder if it could be as simple as a missing kernel option (CONFIG_CRYPTO_CBC).

++
Gi)


Spot on man! thanks a bunch...
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PostPosted: Tue Mar 27, 2018 11:57 am    Post subject: Reply with quote

Hey.
Glad to know I managed to be a little help for once at least :D

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PostPosted: Tue Mar 27, 2018 12:04 pm    Post subject: Reply with quote

guitou wrote:
Hey.
Glad to know I managed to be a little help for once at least :D

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Look like , I celebrate too early...inspite of recompiling ker with options enable ...still getting this

Code:


root@GentooLinux_17:28:58_Tue Mar 27:/etc/openvpn # openvpn India.ovpn
Tue Mar 27 17:29:11 2018 OpenVPN 2.4.4 x86_64-pc-linux-gnu [SSL (mbed TLS)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Mar 25 2018             
Tue Mar 27 17:29:11 2018 library versions: mbed TLS 2.7.1, LZO 2.09
Enter Auth Username:x83054                                                                                                                       
Enter Auth Password:
Tue Mar 27 17:30:08 2018 Cipher aes-256-cbc not supported                                                                                           
Tue Mar 27 17:30:08 2018 Exiting due to fatal error
root@GentooLinux_17:30:08_Tue Mar 27:/etc/openvpn # cd /usr/src
root@GentooLinux_17:31:39_Tue Mar 27:/usr/src # ls
.config  .keep  gentoo_custom_kernel.sh  linux  linux-4.15.13                                                                                       
root@GentooLinux_17:31:40_Tue Mar 27:/usr/src # grep CONFIG_CRYPTO_CBC linux-4.15.13/.config
CONFIG_CRYPTO_CBC=y                     


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PostPosted: Tue Mar 27, 2018 1:11 pm    Post subject: Reply with quote

Well, looks like I did as well, sorry.

After some reading around, I found posts on forums telling TLS not supporting aes-cbc... Have you compiled openvpn with TLS? If yes, then maybe try with openssl.

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PostPosted: Tue Mar 27, 2018 1:41 pm    Post subject: Reply with quote

guitou wrote:
Well, looks like I did as well, sorry.

After some reading around, I found posts on forums telling TLS not supporting aes-cbc... Have you compiled openvpn with TLS? If yes, then maybe try with openssl.

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Yes you are spot on again...Yes I did ...with mbed TLS ,which basically bypass openssl ...heck...it seems I need to re-emerge openvpn with excluded tls stuff ...:(

Thanks for pointing that...let me give it a shot...come back to you .....
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PostPosted: Wed Mar 28, 2018 6:04 am    Post subject: Resolved..do not compile openvpn with mbedtls flag Reply with quote

Yay! working ....

Code:


root@GentooLinux_11:29:14_Wed Mar 28:/etc/openvpn # openvpn India.ovpn                                                                               
Wed Mar 28 11:29:58 2018 OpenVPN 2.4.4 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Mar 28 2018
Wed Mar 28 11:29:58 2018 library versions: OpenSSL 1.0.2n  7 Dec 2017, LZO 2.09                                                                     
Enter Auth Username:x8305462
Enter Auth Password:                                                                                                                                 
Wed Mar 28 11:30:16 2018 TCP/UDP: Preserving recently used remote address: [AF_INET]138.128.180.194:1197
Wed Mar 28 11:30:16 2018 UDP link local: (not bound)                                                                                                 
Wed Mar 28 11:30:16 2018 UDP link remote: [AF_INET]138.128.180.194:1197
Wed Mar 28 11:30:16 2018 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this                   
Wed Mar 28 11:30:17 2018 [8ba17a40d40a1cf8af7891dade844abe] Peer Connection Initiated with [AF_INET]138.128.180.194:1197
Wed Mar 28 11:30:23 2018 TUN/TAP device tun0 opened                                                                                                 
Wed Mar 28 11:30:23 2018 do_ifconfig, tt->did_ifconfig_ipv6_setup=0
Wed Mar 28 11:30:23 2018 /bin/ip link set dev tun0 up mtu 1500                                                                                       
Wed Mar 28 11:30:23 2018 /bin/ip addr add dev tun0 local 10.45.10.6 peer 10.45.10.5
Wed Mar 28 11:30:23 2018 Initialization Sequence Completed   

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PostPosted: Wed Mar 28, 2018 2:18 pm    Post subject: Reply with quote

Great :)

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