Does this happen when Kamailio connects to MS Teams? The logs indicate the received TLS certificate is not trusted:
Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed You can set debug=3 in kamailio.cfg and see if the DEBUG messages provide more hints. For me it worked fine with Letsencrypt certs in Kamailio and accepting what ever MS sent back. I used Debian 10 and libssl 1.1. Cheers, Daniel On 06.01.21 21:47, Willy Valles Rios wrote: > > Hello community, > > > I am having trouble establishing SIP signaling between MsTeams and > Kamailio. I currently have this configuration in my tls.cfg file > > > [server: default] > > method = TLSv1.2 + > > verify_certificate = yes > > require_certificate = yes > > private_key = /etc/kamailio/certificates/private-key.pem > > certificate = /etc/kamailio/certificates/certificate.pem > > > [client: default] > > method = TLSv1.2 + > > verify_certificate = yes > > require_certificate = yes > > private_key = /etc/kamailio/certificates/private-key.pem > > certificate = /etc/kamailio/certificates/certificate.pem > > > My domain was certified with ssl through an authoritative certifier > (GoDaddy), however I see these errors in the / var / log / messages of > the Kamailio server. > > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_mod.c:389]: mod_init(): With ECDH-Support! > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_mod.c:392]: mod_init(): With Diffie Hellman > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_init.c:722]: tls_h_mod_init_f(): compiled with openssl version > "OpenSSL 1.0.2k-fips 26 Jan 2017" (0x100020bf), kerberos support: on, > compression: on > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_init.c:730]: tls_h_mod_init_f(): installed openssl library > version "OpenSSL 1.0.2k-fips 26 Jan 2017" (0x100020bf), kerberos > support: on, zlib compression: on#012 compiler: gcc -I. -I.. > -I../include -fPIC -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT > -DDSO_DLFCN -DHAVE_DLFCN_H -DKRB5_MIT -m64 -DL_ENDIAN -Wall -O2 -g > -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions > -fstack-protector-strong --param=ssp-buffer-size=4 > -grecord-gcc-switches -m64 -mtune=generic -Wa,--noexecstack -DPURIFY > -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 > -DOPENSSL_BN_ASM_GF2m -DRC4_ASM -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM > -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DWHIRLPOOL_ASM > -DGHASH_ASM -DECP_NISTZ256_ASM > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: WARNING: tls > [tls_init.c:787]: tls_h_mod_init_f(): openssl bug #1491 (crash/mem > leaks on low memory) workaround enabled (on low memory tls operations > will fail preemptively) with free memory thresholds 13107200 and > 6553600 bytes > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: > [core/cfg/cfg_ctx.c:598]: cfg_set_now(): tls.low_mem_threshold1 has > been changed to 13107200 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: > [core/cfg/cfg_ctx.c:598]: cfg_set_now(): tls.low_mem_threshold2 has > been changed to 6553600 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: > [main.c:2834]: main(): processes (at least): 25 - shm size: 67108864 - > pkg size: 4194304 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: > [core/udp_server.c:154]: probe_max_receive_buffer(): SO_RCVBUF is > initially 212992 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: > [core/udp_server.c:206]: probe_max_receive_buffer(): SO_RCVBUF is > finally 425984 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:305]: ksr_tls_fill_missing(): TLSs: tls_method=22 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:317]: ksr_tls_fill_missing(): TLSs: > certificate='/etc/kamailio/certificados/certificate.pem' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:324]: ksr_tls_fill_missing(): TLSs: ca_list='(null)' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:331]: ksr_tls_fill_missing(): TLSs: crl='(null)' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:335]: ksr_tls_fill_missing(): TLSs: require_certificate=1 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:342]: ksr_tls_fill_missing(): TLSs: cipher_list='(null)' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:349]: ksr_tls_fill_missing(): TLSs: > private_key='/etc/kamailio/certificados/private-key.pem' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:353]: ksr_tls_fill_missing(): TLSs: verify_certificate=1 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:356]: ksr_tls_fill_missing(): TLSs: verify_depth=9 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:359]: ksr_tls_fill_missing(): TLSs: verify_client=0 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: NOTICE: tls > [tls_domain.c:1107]: ksr_tls_fix_domain(): registered server_name > callback handler for socket [:0], server_name='' ... > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:697]: set_verification(): TLSs: Client MUST present > valid certificate > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:305]: ksr_tls_fill_missing(): TLSc: tls_method=22 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:317]: ksr_tls_fill_missing(): TLSc: > certificate='/etc/kamailio/certificados/certificate.pem' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:324]: ksr_tls_fill_missing(): TLSc: ca_list='(null)' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:331]: ksr_tls_fill_missing(): TLSc: crl='(null)' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:335]: ksr_tls_fill_missing(): TLSc: require_certificate=1 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:342]: ksr_tls_fill_missing(): TLSc: cipher_list='(null)' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:349]: ksr_tls_fill_missing(): TLSc: > private_key='/etc/kamailio/certificados/private-key.pem' > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:353]: ksr_tls_fill_missing(): TLSc: verify_certificate=1 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:356]: ksr_tls_fill_missing(): TLSc: verify_depth=9 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:359]: ksr_tls_fill_missing(): TLSc: verify_client=0 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls > [tls_domain.c:697]: set_verification(): TLSc: Server MUST present > valid certificate > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32422]: INFO: > jsonrpcs [jsonrpcs_sock.c:443]: jsonrpc_dgram_process(): a new child > 0/32422 > > Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32424]: INFO: ctl > [io_listener.c:214]: io_listen_loop(): io_listen_loop: using epoll_lt > io watch method (config) > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls > [tls_server.c:1283]: tls_h_read_f(): protocol level error > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls > [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL > routines:ssl3_get_server_certificate:certificate verify failed > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls > [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.75.24 > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls > [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66 > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: > [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error > reading - c: 0x7f45242be028 r: 0x7f45242be150 (-1) > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: tls > [tls_server.c:1283]: tls_h_read_f(): protocol level error > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: tls > [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL > routines:ssl3_get_server_certificate:certificate verify failed > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: tls > [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.132.46 > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: tls > [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66 > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: > [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error > reading - c: 0x7f45242d9278 r: 0x7f45242d93a0 (-1) > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: tls > [tls_server.c:1283]: tls_h_read_f(): protocol level error > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: tls > [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL > routines:ssl3_get_server_certificate:certificate verify failed > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: tls > [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.14.70 > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: tls > [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66 > > Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: > [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error > reading - c: 0x7f45242be028 r: 0x7f45242be150 (-1) > > > Could you help me identify the problem please. > > > Cheers > > > Saludos Cordiales > -- > _Willy Valles Rios_ > *Unified Communications Specialist* > * > * > phone: +51955747343 > em@il: [email protected] <mailto:[email protected]> > > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Funding: https://www.paypal.me/dcmierla
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