Hello, I’m setting up ocserv so it can serve ~20 cisco any connect ssl vpn client. the any connect client I’m using for this setup is a 3.1 version of 2016, on a mac. the ocserv I use is the one shipped by debian buster. launching the client to connect on the server, it fails with the following logged on the (debian) server: « GnuTLS error (at worker-vpn.c:795): No supported cipher suites have been found ». Does anyone have a clue how to fix my problem? Does anyone have a clue on how to get more cipher suite available on the server, it seems there is only 3, all using SHA1 (!?) Thanks for your time! —— log (ocserv -f -d 9999) —— note: setting 'certificate' as primary authentication method note: setting 'file' as supplemental config option listening (TCP) on 0.0.0.0:443... listening (TCP) on [::]:443... listening (UDP) on 0.0.0.0:443... listening (UDP) on [::]:443... ocserv[25181]: main: created sec-mod socket file (/run/ocserv.socket.684288ad) ocserv[25181]: main: initializing control unix socket: /var/run/occtl.socket ocserv[25181]: main: initialized ocserv 0.12.2 ocserv[25182]: sec-mod: reading supplemental config from files ocserv[25182]: TLS[<3>]: ASSERT: ../../../lib/x509/attributes.c[_x509_parse_attribute]:103 ocserv[25182]: TLS[<3>]: ASSERT: ../../../lib/x509/attributes.c[_x509_parse_attribute]:174 ocserv[25182]: sec-mod: loaded 1 keys ocserv[25182]: sec-mod: sec-mod initialized (socket: /run/ocserv.socket.684288ad) ocserv[25181]: main: added 1 points (total 1) for IP '146.4.62.174' to ban list ocserv[25183]: worker: accepted connection ocserv[25183]: TLS[<5>]: REC[0x55cc99840140]: Allocating epoch #0 ocserv[25183]: TLS[<5>]: REC[0x55cc99840140]: Allocating epoch #1 ocserv[25183]: TLS[<3>]: ASSERT: ../../lib/buffers.c[get_last_packet]:1171 ocserv[25183]: TLS[<5>]: REC[0x55cc99840140]: SSL 3.1 Handshake packet received. Epoch 0, length: 51 ocserv[25183]: TLS[<5>]: REC[0x55cc99840140]: Expected Packet Handshake(22) ocserv[25183]: TLS[<5>]: REC[0x55cc99840140]: Received Packet Handshake(22) with length: 51 ocserv[25183]: TLS[<5>]: REC[0x55cc99840140]: Decrypted Packet[0] Handshake(22) with length: 51 ocserv[25183]: TLS[<4>]: HSK[0x55cc99840140]: CLIENT HELLO (1) was received. Length 47[47], frag offset 0, frag length: 47, sequence: 0 ocserv[25183]: TLS[<4>]: HSK[0x55cc99840140]: Client's version: 3.1 ocserv[25183]: TLS[<3>]: ASSERT: ../../lib/db.c[_gnutls_server_restore_session]:334 ocserv[25183]: TLS[<4>]: HSK[0x55cc99840140]: Received safe renegotiation CS ocserv[25183]: TLS[<2>]: checking 00.35 (GNUTLS_RSA_AES_256_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.2f (GNUTLS_RSA_AES_128_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.0a (GNUTLS_RSA_3DES_EDE_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.35 (GNUTLS_RSA_AES_256_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.2f (GNUTLS_RSA_AES_128_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.0a (GNUTLS_RSA_3DES_EDE_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.35 (GNUTLS_RSA_AES_256_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.2f (GNUTLS_RSA_AES_128_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.0a (GNUTLS_RSA_3DES_EDE_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.35 (GNUTLS_RSA_AES_256_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.2f (GNUTLS_RSA_AES_128_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.0a (GNUTLS_RSA_3DES_EDE_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.35 (GNUTLS_RSA_AES_256_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.2f (GNUTLS_RSA_AES_128_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.0a (GNUTLS_RSA_3DES_EDE_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.35 (GNUTLS_RSA_AES_256_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.2f (GNUTLS_RSA_AES_128_CBC_SHA1) for compatibility ocserv[25183]: TLS[<2>]: checking 00.0a (GNUTLS_RSA_3DES_EDE_CBC_SHA1) for compatibility ocserv[25183]: TLS[<3>]: ASSERT: ../../../lib/algorithms/ciphersuites.c[_gnutls_figure_common_ciphersuite]:1587 ocserv[25183]: TLS[<3>]: ASSERT: ../../lib/handshake.c[_gnutls_server_select_suite]:1081 ocserv[25183]: TLS[<3>]: ASSERT: ../../lib/handshake.c[read_client_hello]:804 ocserv[25183]: TLS[<3>]: ASSERT: ../../lib/handshake.c[_gnutls_recv_handshake]:1552 ocserv[25183]: TLS[<3>]: ASSERT: ../../lib/handshake.c[handshake_server]:3438 ocserv[25183]: GnuTLS error (at worker-vpn.c:795): No supported cipher suites have been found. ocserv[25181]: main:146.4.62.174:7432 worker terminated ocserv[25181]: main:146.4.62.174:7432 user disconnected (reason: unspecified, rx: 0, tx: 0) ocserv[25181]: main: main-sec-mod-cmd.c:106: command socket for sec-mod closed ocserv[25181]: main: main.c:1203: error in command from sec-mod ocserv[25181]: main: termination request received; waiting for children to die —— config (0.12.2-3 debian gnu/linux rel. buster) —— # User authentication method. Could be set multiple times and in # that case all should succeed. To enable multiple methods use # multiple auth directives. Available options: certificate, # plain, pam, radius, gssapi. # # Note that authentication methods cannot be changed with reload. # certificate: # This indicates that all connecting users must present a certificate. # # pam[gid-min=1000]: # This enabled PAM authentication of the user. The gid-min option is used # by auto-select-group option, in order to select the minimum valid group ID. # # plain[passwd=/etc/ocserv/ocpasswd,otp=/etc/ocserv/users.otp] # The plain option requires specifying a password file which contains # entries of the following format. # "username:groupname1,groupname2:encoded-password" # One entry must be listed per line, and 'ocpasswd' should be used # to generate password entries. The 'otp' suboption allows to specify # an oath password file to be used for one time passwords; the format of # the file is described in https://code.google.com/p/mod-authn-otp/wiki/UsersFile # # radius[config=/etc/radiusclient/radiusclient.conf,groupconfig=true,nas-identifier=name]: # The radius option requires specifying freeradius-client configuration # file. If the groupconfig option is set, then config-per-user/group will be overriden, # and all configuration will be read from radius. That also includes the # Acct-Interim-Interval, and Session-Timeout values. # # See doc/README-radius.md for the supported radius configuration atributes. # # gssapi[keytab=/etc/key.tab,require-local-user-map=true,tgt-freshness-time=900] # The gssapi option allows to use authentication methods supported by GSSAPI, # such as Kerberos tickets with ocserv. It should be best used as an alternative # to PAM (i.e., have pam in auth and gssapi in enable-auth), to allow users with # tickets and without tickets to login. The default value for require-local-user-map # is true. The 'tgt-freshness-time' if set, it would require the TGT tickets presented # to have been issued within the provided number of seconds. That option is used to # restrict logins even if the KDC provides long time TGT tickets. #auth = "pam" #auth = "pam[gid-min=1000]" #auth = "plain[passwd=./sample.passwd,otp=./sample.otp]" #auth = "plain[passwd=./sample.passwd]" auth = "certificate" #auth = "radius[config=/etc/radiusclient/radiusclient.conf,groupconfig=true]" # Specify alternative authentication methods that are sufficient # for authentication. That is, if set, any of the methods enabled # will be sufficient to login. #enable-auth = "certificate" #enable-auth = "gssapi" #enable-auth = "gssapi[keytab=/etc/key.tab,require-local-user-map=true,tgt-freshness-time=900]" # Accounting methods available: # radius: can be combined with any authentication method, it provides # radius accounting to available users (see also stats-report-time). # # pam: can be combined with any authentication method, it provides # a validation of the connecting user's name using PAM. It is # superfluous to use this method when authentication is already # PAM. # # Only one accounting method can be specified. #acct = "radius[config=/etc/radiusclient/radiusclient.conf]" # Use listen-host to limit to specific IPs or to the IPs of a provided # hostname. #listen-host = [IP|HOSTNAME] # When the server has a dynamic DNS address (that may change), # should set that to true to ask the client to resolve again on # reconnects. #listen-host-is-dyndns = true # TCP and UDP port number # Note: These options are controlled by ocserv.socket if socket-activated # version of systemd configuration is used tcp-port = 443 udp-port = 443 # Accept connections using a socket file. It accepts HTTP # connections (i.e., without SSL/TLS unlike its TCP counterpart), # and uses it as the primary channel. That option cannot be # combined with certificate authentication. #listen-clear-file = /run/ocserv-conn.socket # The user the worker processes will be run as. It should be # unique (no other services run as this user). run-as-user = nobody run-as-group = daemon # socket file used for IPC with occtl. You only need to set that, # if you use more than a single servers. #occtl-socket-file = /run/occtl.socket # socket file used for server IPC (worker-main), will be appended with .PID # It must be accessible within the chroot environment (if any), so it is best # specified relatively to the chroot directory. socket-file = /run/ocserv.socket # The default server directory. Does not require any devices present. #chroot-dir = /path/to/chroot # The key and the certificates of the server # The key may be a file, or any URL supported by GnuTLS (e.g., # tpmkey:uuid=xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx;storage=user # or pkcs11:object=my-vpn-key;object-type=private) # # The server-cert file may contain a single certificate, or # a sorted certificate chain. # # There may be multiple server-cert and server-key directives, # but each key should correspond to the preceding certificate. server-cert = /etc/letsencrypt/live/www.strauss-engineering.ch/fullchain.pem server-key = /etc/letsencrypt/live/www.strauss-engineering.ch/privkey.pem # Diffie-Hellman parameters. Only needed if you require support # for the DHE ciphersuites (by default this server supports ECDHE). # Can be generated using: # certtool --generate-dh-params --outfile /path/to/dh.pem dh-params = /etc/ocserv/dh.pem # In case PKCS #11, TPM or encrypted keys are used the PINs should be available # in files. The srk-pin-file is applicable to TPM keys only, and is the # storage root key. #pin-file = /path/to/pin.txt #srk-pin-file = /path/to/srkpin.txt # The password or PIN needed to unlock the key in server-key file. # Only needed if the file is encrypted or a PKCS #11 object. This # is an alternative method to pin-file. #key-pin = 1234 # The SRK PIN for TPM. # This is an alternative method to srk-pin-file. #srk-pin = 1234 # The Certificate Authority that will be used to verify # client certificates (public keys) if certificate authentication # is set. #ca-cert = /etc/ssl/certs/ssl-cert-snakeoil.pem ### All configuration options below this line are reloaded on a SIGHUP. ### The options above, will remain unchanged. Note however, that the ### server-cert, server-key, dh-params and ca-cert options will be reloaded ### if the provided file changes, on server reload. That allows certificate ### rotation, but requires the server key to remain the same for seamless ### operation. If the server key changes on reload, there may be connection ### failures during the reloading time. # Whether to enable seccomp/Linux namespaces worker isolation. That restricts the number of # system calls allowed to a worker process, in order to reduce damage from a # bug in the worker process. It is available on Linux systems at a performance cost. # The performance cost is roughly 2% overhead at transfer time (tested on a Linux 3.17.8). # Note however, that process isolation is restricted to the specific libc versions # the isolation was tested at. If you get random failures on worker processes, try # disabling that option and report the failures you, along with system and debugging # information at: https://gitlab.com/ocserv/ocserv/issues isolate-workers = true # A banner to be displayed on clients #banner = "Welcome" # Limit the number of clients. Unset or set to zero for unlimited. #max-clients = 1024 max-clients = 128 # Limit the number of identical clients (i.e., users connecting # multiple times). Unset or set to zero for unlimited. max-same-clients = 2 # When the server receives connections from a proxy, like haproxy # which supports the proxy protocol, set this to obtain the correct # client addresses. The proxy protocol (v2) would then be expected in # the TCP or UNIX socket (not the UDP one). #listen-proxy-proto = true # Limit the number of client connections to one every X milliseconds # (X is the provided value). Set to zero for no limit. #rate-limit-ms = 100 # Stats report time. The number of seconds after which each # worker process will report its usage statistics (number of # bytes transferred etc). This is useful when accounting like # radius is in use. #stats-report-time = 360 # Stats reset time. The period of time statistics kept by main/sec-mod # processes will be reset. These are the statistics shown by cmd # 'occtl show stats'. For daily: 86400, weekly: 604800 # This is unrelated to stats-report-time. server-stats-reset-time = 604800 # Keepalive in seconds keepalive = 300 # Dead peer detection in seconds. # Note that when the client is behind a NAT this value # needs to be short enough to prevent the NAT disassociating # his UDP session from the port number. Otherwise the client # could have his UDP connection stalled, for several minutes. dpd = 60 # Dead peer detection for mobile clients. That needs to # be higher to prevent such clients being awaken too # often by the DPD messages, and save battery. # The mobile clients are distinguished from the header # 'X-AnyConnect-Identifier-Platform'. mobile-dpd = 300 # If using DTLS, and no UDP traffic is received for this # many seconds, attempt to send future traffic over the TCP # connection instead, in an attempt to wake up the client # in the case that there is a NAT and the UDP translation # was deleted. If this is unset, do not attempt to use this # recovery mechanism. switch-to-tcp-timeout = 30 # MTU discovery (DPD must be enabled) try-mtu-discovery = false # If you have a certificate from a CA that provides an OCSP # service you may provide a fresh OCSP status response within # the TLS handshake. That will prevent the client from connecting # independently on the OCSP server. # You can update this response periodically using: # ocsptool --ask --load-cert=your_cert --load-issuer=your_ca --outfile response # Make sure that you replace the following file in an atomic way. #ocsp-response = /path/to/ocsp.der # The object identifier that will be used to read the user ID in the client # certificate. The object identifier should be part of the certificate's DN # Useful OIDs are: # CN = 2.5.4.3, UID = 0.9.2342.19200300.100.1.1 cert-user-oid = 0.9.2342.19200300.100.1.1 # The object identifier that will be used to read the user group in the # client certificate. The object identifier should be part of the certificate's # DN. If the user may belong to multiple groups, then use multiple such fields # in the certificate's DN. Useful OIDs are: # OU (organizational unit) = 2.5.4.11 #cert-group-oid = 2.5.4.11 # The revocation list of the certificates issued by the 'ca-cert' above. # See the manual to generate an empty CRL initially. The CRL will be reloaded # periodically when ocserv detects a change in the file. To force a reload use # SIGHUP. #crl = /path/to/crl.pem # Uncomment this to enable compression negotiation (LZS, LZ4). compression = true # Set the minimum size under which a packet will not be compressed. # That is to allow low-latency for VoIP packets. The default size # is 256 bytes. Modify it if the clients typically use compression # as well of VoIP with codecs that exceed the default value. no-compress-limit = 256 # GnuTLS priority string; note that SSL 3.0 is disabled by default # as there are no openconnect (and possibly anyconnect clients) using # that protocol. The string below does not enforce perfect forward # secrecy, in order to be compatible with legacy clients. # # Note that the most performant ciphersuites are the moment are the ones # involving AES-GCM. These are very fast in x86 and x86-64 hardware, and # in addition require no padding, thus taking full advantage of the MTU. # For that to be taken advantage of, the openconnect client must be # used, and the server must be compiled against GnuTLS 3.2.7 or later. # Use "gnutls-cli --benchmark-tls-ciphers", to see the performance # difference with AES_128_CBC_SHA1 (the default for anyconnect clients) # in your system. # More combinations in priority strings are available, check # http://gnutls.org/manual/html_node/Priority-Strings.html # E.g., the string below enforces perfect forward secrecy (PFS) # on the main channel. tls-priorities = "NORMAL:%SERVER_PRECEDENCE:%COMPAT:-RSA:-VERS-SSL3.0:-ARCFOUR-128" # That option requires the established DTLS channel to use the same # cipher as the primary TLS channel. This cannot be combined with # listen-clear-file since the ciphersuite information is not available # in that configuration. Note also, that this option implies that # dtls-legacy option is false; this option cannot be enforced # in the legacy/compat protocol. #match-tls-dtls-ciphers = true # The time (in seconds) that a client is allowed to stay connected prior # to authentication auth-timeout = 240 # The time (in seconds) that a client is allowed to stay idle (no traffic) # before being disconnected. Unset to disable. idle-timeout = 1200 # The time (in seconds) that a mobile client is allowed to stay idle (no # traffic) before being disconnected. Unset to disable. mobile-idle-timeout = 1800 # The time (in seconds) that a client is not allowed to reconnect after # a failed authentication attempt. min-reauth-time = 3 # Banning clients in ocserv works with a point system. IP addresses # that get a score over that configured number are banned for # min-reauth-time seconds. By default a wrong password attempt is 10 points, # a KKDCP POST is 1 point, and a connection is 1 point. Note that # due to difference processes being involved the count of points # will not be real-time precise. # # Score banning cannot be reliably used when receiving proxied connections # locally from an HTTP server (i.e., when listen-clear-file is used). # # Set to zero to disable. max-ban-score = 50 # The time (in seconds) that all score kept for a client is reset. ban-reset-time = 300 # In case you'd like to change the default points. #ban-points-wrong-password = 10 #ban-points-connection = 1 #ban-points-kkdcp = 1 # Cookie timeout (in seconds) # Once a client is authenticated he's provided a cookie with # which he can reconnect. That cookie will be invalidated if not # used within this timeout value. This cookie remains valid, during # the user's connected time, and after user disconnection it # remains active for this amount of time. That setting should allow a # reasonable amount of time for roaming between different networks. cookie-timeout = 300 # If this is enabled (not recommended) the cookies will stay # valid even after a user manually disconnects, and until they # expire. This may improve roaming with some broken clients. #persistent-cookies = true # Whether roaming is allowed, i.e., if true a cookie is # restricted to a single IP address and cannot be re-used # from a different IP. deny-roaming = false # ReKey time (in seconds) # ocserv will ask the client to refresh keys periodically once # this amount of seconds is elapsed. Set to zero to disable (note # that, some clients fail if rekey is disabled). rekey-time = 172800 # ReKey method # Valid options: ssl, new-tunnel # ssl: Will perform an efficient rehandshake on the channel allowing # a seamless connection during rekey. # new-tunnel: Will instruct the client to discard and re-establish the channel. # Use this option only if the connecting clients have issues with the ssl # option. rekey-method = ssl # Script to call when a client connects and obtains an IP. # The following parameters are passed on the environment. # REASON, USERNAME, GROUPNAME, DEVICE, IP_REAL (the real IP of the client), # IP_REAL_LOCAL (the local interface IP the client connected), IP_LOCAL # (the local IP in the P-t-P connection), IP_REMOTE (the VPN IP of the client), # IPV6_LOCAL (the IPv6 local address if there are both IPv4 and IPv6 # assigned), IPV6_REMOTE (the IPv6 remote address), IPV6_PREFIX, and # ID (a unique numeric ID); REASON may be "connect" or "disconnect". # In addition the following variables OCSERV_ROUTES (the applied routes for this # client), OCSERV_NO_ROUTES, OCSERV_DNS (the DNS servers for this client), # will contain a space separated list of routes or DNS servers. A version # of these variables with the 4 or 6 suffix will contain only the IPv4 or # IPv6 values. # The disconnect script will receive the additional values: STATS_BYTES_IN, # STATS_BYTES_OUT, STATS_DURATION that contain a 64-bit counter of the bytes # output from the tun device, and the duration of the session in seconds. #connect-script = /usr/bin/myscript #disconnect-script = /usr/bin/myscript # UTMP # Register the connected clients to utmp. This will allow viewing # the connected clients using the command 'who'. #use-utmp = true # Whether to enable support for the occtl tool (i.e., either through D-BUS, # or via a unix socket). use-occtl = true # PID file. It can be overriden in the command line. pid-file = /run/ocserv.pid # Set the protocol-defined priority (SO_PRIORITY) for packets to # be sent. That is a number from 0 to 6 with 0 being the lowest # priority. Alternatively this can be used to set the IP Type- # Of-Service, by setting it to a hexadecimal number (e.g., 0x20). # This can be set per user/group or globally. #net-priority = 3 # Set the VPN worker process into a specific cgroup. This is Linux # specific and can be set per user/group or globally. #cgroup = "cpuset,cpu:test" # # Network settings # # The name to use for the tun device device = vpns # Whether the generated IPs will be predictable, i.e., IP stays the # same for the same user when possible. predictable-ips = true # The default domain to be advertised default-domain = strauss-engineering.ch # The pool of addresses that leases will be given from. If the leases # are given via Radius, or via the explicit-ip? per-user config option then # these network values should contain a network with at least a single # address that will remain under the full control of ocserv (that is # to be able to assign the local part of the tun device address). # Note that, you could use addresses from a subnet of your LAN network if you # enable proxy arp in the LAN interface (see http://infradead.org/ocserv/recipes-ocserv-pseudo-bridge.html); # in that case it is recommended to set ping-leases to true. ipv4-network = 192.168.1.0 ipv4-netmask = 255.255.255.0 # An alternative way of specifying the network: #ipv4-network = 192.168.1.0/24 # The IPv6 subnet that leases will be given from. #ipv6-network = fda9:4efe:7e3b:03ea::/48 # Specify the size of the network to provide to clients. It is # generally recommended to provide clients with a /64 network in # IPv6, but any subnet may be specified. To provide clients only # with a single IP use the prefix 128. #ipv6-subnet-prefix = 128 #ipv6-subnet-prefix = 64 # Whether to tunnel all DNS queries via the VPN. This is the default # when a default route is set. #tunnel-all-dns = true # The advertized DNS server. Use multiple lines for # multiple servers. # dns = fc00::4be0 dns = 8.8.8.8 dns = 8.8.4.4 # The NBNS server (if any) #nbns = 192.168.1.3 # The domains over which the provided DNS should be used. Use # multiple lines for multiple domains. #split-dns = example.com # Prior to leasing any IP from the pool ping it to verify that # it is not in use by another (unrelated to this server) host. # Only set to true, if there can be occupied addresses in the # IP range for leases. ping-leases = false # Use this option to set a link MTU value to the incoming # connections. Unset to use the default MTU of the TUN device. # Note that the MTU is negotiated using the value set and the # value sent by the peer. #mtu = 1420 # Unset to enable bandwidth restrictions (in bytes/sec). The # setting here is global, but can also be set per user or per group. #rx-data-per-sec = 40000 #tx-data-per-sec = 40000 # The number of packets (of MTU size) that are available in # the output buffer. The default is low to improve latency. # Setting it higher will improve throughput. #output-buffer = 10 # Routes to be forwarded to the client. If you need the # client to forward routes to the server, you may use the # config-per-user/group or even connect and disconnect scripts. # # To set the server as the default gateway for the client just # comment out all routes from the server, or use the special keyword # 'default'. route = 10.0.0.0/8 route = 172.16.0.0/12 route = 192.168.0.0/16 #route = fd00::/8 #route = default # Subsets of the routes above that will not be routed by # the server. #no-route = 192.168.5.0/255.255.255.0 # Note the that following two firewalling options currently are available # in Linux systems with iptables software. # If set, the script /usr/bin/ocserv-fw will be called to restrict # the user to its allowed routes and prevent him from accessing # any other routes. In case of defaultroute, the no-routes are restricted. # All the routes applied by ocserv can be reverted using /usr/bin/ocserv-fw # --removeall. This option can be set globally or in the per-user configuration. #restrict-user-to-routes = true # This option implies restrict-user-to-routes set to true. If set, the # script /usr/bin/ocserv-fw will be called to restrict the user to # access specific ports in the network. This option can be set globally # or in the per-user configuration. #restrict-user-to-ports = "tcp(443), tcp(80), udp(443), sctp(99), tcp(583), icmp(), icmpv6()" # You could also use negation, i.e., block the user from accessing these ports only. #restrict-user-to-ports = "!(tcp(443), tcp(80))" # When set to true, all client's iroutes are made visible to all # connecting clients except for the ones offering them. This option # only makes sense if config-per-user is set. #expose-iroutes = true # Groups that a client is allowed to select from. # A client may belong in multiple groups, and in certain use-cases # it is needed to switch between them. For these cases the client can # select prior to authentication. Add multiple entries for multiple groups. # The group may be followed by a user-friendly name in brackets. #select-group = group1 #select-group = group2[My special group] # The name of the (virtual) group that if selected it would assign the user # to its default group. #default-select-group = DEFAULT # Instead of specifying manually all the allowed groups, you may instruct # ocserv to scan all available groups and include the full list. #auto-select-group = true # Configuration files that will be applied per user connection or # per group. Each file name on these directories must match the username # or the groupname. # The options allowed in the configuration files are dns, nbns, # ipv?-network, ipv4-netmask, rx/tx-per-sec, iroute, route, no-route, # explicit-ipv4, explicit-ipv6, net-priority, deny-roaming, no-udp, # keepalive, dpd, mobile-dpd, max-same-clients, tunnel-all-dns, # restrict-user-to-routes, user-profile, cgroup, stats-report-time, # mtu, idle-timeout, mobile-idle-timeout, restrict-user-to-ports, # and session-timeout. # # Note that the 'iroute' option allows to add routes on the server # based on a user or group. The syntax depends on the input accepted # by the commands route-add-cmd and route-del-cmd (see below). The no-udp # is a boolean option (e.g., no-udp = true), and will prevent a UDP session # for that specific user or group. The hostname option will set a # hostname to override any proposed by the user. Note also, that, any # routes, no-routes, DNS or NBNS servers present will overwrite the global ones. #config-per-user = /etc/ocserv/config-per-user/ #config-per-group = /etc/ocserv/config-per-group/ # When config-per-xxx is specified and there is no group or user that # matches, then utilize the following configuration. #default-user-config = /etc/ocserv/defaults/user.conf #default-group-config = /etc/ocserv/defaults/group.conf # The system command to use to setup a route. %{R} will be replaced with the # route/mask, %{RI} with the route in CIDR format, and %{D} with the (tun) device. # # The following example is from linux systems. %{R} should be something # like 192.168.2.0/255.255.255.0 and %{RI} 192.168.2.0/24 (the argument of iroute). #route-add-cmd = "ip route add %{R} dev %{D}" #route-del-cmd = "ip route delete %{R} dev %{D}" # This option allows to forward a proxy. The special keywords '%{U}' # and '%{G}', if present will be replaced by the username and group name. #proxy-url = http://example.com/ #proxy-url = http://example.com/%{U}/ # This option allows you to specify a URL location where a client can # post using MS-KKDCP, and the message will be forwarded to the provided # KDC server. That is a translation URL between HTTP and Kerberos. # In MIT kerberos you'll need to add in realms: # EXAMPLE.COM = { # kdc = https://ocserv.example.com/KdcProxy # http_anchors = FILE:/etc/ocserv-ca.pem # } # In some distributions the krb5-k5tls plugin of kinit is required. # # The following option is available in ocserv, when compiled with GSSAPI support. #kkdcp = "SERVER-PATH KERBEROS-REALM PROTOCOL@SERVER:PORT" #kkdcp = "/KdcProxy KERBEROS.REALM udp@127.0.0.1:88" #kkdcp = "/KdcProxy KERBEROS.REALM tcp@127.0.0.1:88" #kkdcp = "/KdcProxy KERBEROS.REALM tcp@[::1]:88" # # The following options are for (experimental) AnyConnect client # compatibility. # This option will enable the pre-draft-DTLS version of DTLS, and # will not require clients to present their certificate on every TLS # connection. It must be set to true to support legacy CISCO clients # and openconnect clients < 7.08. When set to true, it implies dtls-legacy = true. cisco-client-compat = true # This option allows to disable the DTLS-PSK negotiation (enabled by default). # The DTLS-PSK negotiation was introduced in ocserv 0.11.5 to deprecate # the pre-draft-DTLS negotiation inherited from AnyConnect. It allows the # DTLS channel to negotiate its ciphers and the DTLS protocol version. #dtls-psk = false # This option allows to disable the legacy DTLS negotiation (enabled by default, # but that may change in the future). # The legacy DTLS uses a pre-draft version of the DTLS protocol and was # from AnyConnect protocol. It has several limitations, that are addressed # by the dtls-psk protocol supported by openconnect 7.08+. dtls-legacy = true # Client profile xml. A sample file exists in doc/profile.xml. # It is required by some of the CISCO clients. # This file must be accessible from inside the worker's chroot. # Note that enabling this option is not recommended as it will allow # the worker processes to open arbitrary files (when isolate-workers is # set to true). #user-profile = /path/to/file.xml #Advanced options # Option to allow sending arbitrary custom headers to the client after # authentication and prior to VPN tunnel establishment. You shouldn't # need to use this option normally; if you do and you think that # this may help others, please send your settings and reason to # the openconnect mailing list. The special keywords '%{U}' # and '%{G}', if present will be replaced by the username and group name. #custom-header = "X-My-Header: hi there" # An example virtual host with different authentication methods serviced # # by this server. # # [vhost:www.example.com] # auth = "certificate" # # ca-cert = ../tests/certs/ca.pem # # # The certificate set here must include a 'dns_name' corresponding to # # the virtual host name. # # server-cert = ../tests/certs/server-cert-secp521r1.pem # server-key = ../tests/certs/server-key-secp521r1.pem # # ipv4-network = 192.168.2.0 # ipv4-netmask = 255.255.255.0 # # cert-user-oid = 0.9.2342.19200300.100.1.1 # -- Philippe Strauss https://www.strauss-engineering.ch _______________________________________________ openconnect-devel mailing list openconnect-devel@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/openconnect-devel
