- stunnel-users - stunnel.org

(stunnel-4.14) poor performance with openssl engine
by Zhuang Yuyao 03 Apr '06

03 Apr '06

Hi, I've just added openssl engine support for Cavium Nitrox lite PCI card. Here are the speed test output: [engine] stands for speed test output with engine [soft] stands for speed test output without engine (openssl internal software implementation used) ~ # openssl speed -evp [rc4|aes256|sha1] [-engine /root/libcavium.so] ...... The 'numbers' are in 1000s of bytes per second processed. type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes rc4[engine] 6339.20k 25376.00k 100966.40k 3757056.00k 919961.60k rc4[soft] 6056.66k 7017.34k 7228.37k 7339.13k 7356.14k aes-256-cbc[engine] 3178.40k 25465.60k 50636.80k 194201.60k 2088140.80k aes-256-cbc[soft] 2430.36k 2572.93k 2597.45k 2617.27k 2609.82k sha1[engine] 774.20k 3115.20k 16486.40k 27033.60k 285593.60k sha1[soft] 915.74k 2622.71k 5678.93k 7942.23k 9041.75k ~ # openssl speed rsa [-engine /root/libcavium.so] sign verify sign/s verify/s rsa[soft] 512 bits 0.013810s 0.001349s 72.4 741.2 rsa[soft] 1024 bits 0.079200s 0.004342s 12.6 230.3 sign verify sign/s verify/s rsa[engine] 512 bits 0.000037s 0.000022s 26725.8 45181.5 rsa[engine] 1024 bits 0.000046s 0.000043s 21866.7 23489.1 The speed test shows than using engine is much much faster than software implementations. but while testing with stunnel, the result is really poor. I am still using apache benchmark 2 as the test tool. #ab2 -c 50 -n 100 https://192.168.10.5/test_1k.html (a html file whose size is 1Kbytes) #ab2 -c 50 -n 100 https://192.168.10.5/test_4k.html (a html file whose size is 4Kbytes) #ab2 -c 50 -n 100 https://192.168.10.5/test_50k.html (a html file whose size is 50Kbytes) #ab2 -c 50 -n 100 https://192.168.10.5/test_100k.html (a html file whose size is 100Kbytes) #ab2 -c 50 -n 100 https://192.168.10.5/test_200k.html (a html file whose size is 200Kbytes) Here is the result: Algorithm engine 1K 4K 50K 100K 200K AES-256-CBC+SHA1 no 14.12 13.21 7.92 4.48 2.17 (Requests per second) AES-256-CBC+SHA1 yes 51.10 23.34 7.30 3.12 1.91 (Requests per second) the data says everything. while using engine with stunnel, we got some performance increasement for processing small files, but processing bigger files is even slower than software implementation (it's quite strange, because proccessing large data blocks with hardware engine is assumed to be much faster than proccessing small data blocks). I did the same test for several times, but the result is the same. something I can be sure: 1) while doing stunnel engine test, all of the algorithms are processed by the engine. I can see it by debugging information printed on console screen. 2) the client running ab2 is a AMD64 with 1G RAM, and the web server (apache) used in the test above is an XEON with 2G RAM. so the bottleneck should be neither ab2 nor apache. So here are my questions: Has anyone tried stunnel with a hardware acceleartor? How about the performance? BTW, attached to this mail is a little patch for stunnel-4.14 which allows the engine directive in stunnel.conf to be set to either a engine id or a shared object path refer to the engine (ie. engine = /root/libcavium.so) Best regards, Zhuang Yuyao --- stunnel-4.14/src/ssl.c Thu Oct 27 09:42:54 2005 UTC +++ stunnel/src/ssl.c Tue Mar 28 08:48:03 2006 UTC @@ -122,6 +143,21 @@ } #if (SSLEAY_VERSION_NUMBER >= 0x00907000L) && defined(HAVE_OSSL_ENGINE_H) +static ENGINE *load_dynamic_engine(const char *engine) +{ + ENGINE *e = ENGINE_by_id("dynamic"); + if (e) + { + if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0) + || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) + { + ENGINE_free(e); + e = NULL; + } + } + return e; +} + static void init_engine(void) { ENGINE *e; @@ -133,9 +169,12 @@ } e=ENGINE_by_id(options.engine); if(!e) { + e = load_dynamic_engine(options.engine); + if (!e) { s_log(LOG_ERR, "Engine not found"); exit(1); } + } if(!ENGINE_init(e)) { s_log(LOG_ERR, "Engine can't be initialized"); ENGINE_free(e);

2 1

autostart stunnel at boot
by christof mestdag 03 Apr '06

03 Apr '06

hi is there another solution for booting stunnel without writting a custom rc5 script ? DO i have to make changes to make it works as a daemon? -> stunnel.conf client=yes output=/var/log/stunnel.log [ldaps] accept=localhost:389 connect=192.168.1.101:636

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Re: [stunnel-users] Config for client proxy https (privoxy + stunnel)
by Xavier Cheney 02 Apr '06

02 Apr '06

Hi everybody, I found my mistake !! The process is not good. This is the correct process : browser (localhost:8118) <-> (localhost:8118) privoxy <-web-> server [and] (localhost:8888) stunnel (server:443) So with only privoxy like proxy in my Firefox config - when I ask http://server/page.html , data is modified by privoxy - when I ask https://server/page.html, data is transmitted by privoxy - when I ask http://localhost:888/page.html data is modified by privoxy and the real data transmitted is https://server/page.html , stunnel managing SSL between localhost and server. My new config : [https] accept = 8888 connect = server:443 In fact, it was the stunnel main function that I didn't understand. Sorry :) Thanks to exos, and hope it will help someone, Xavier Xavier Cheney <xav26000(a)yahoo.fr> a écrit : Hi, I wan to customize web page before viewing by my browser Firefox. With "privoxy" (www.privoxy.org) I can modify (proxy filter) HTTP web page, but not HTTPS pages. So, I want to use stunnel, to transfer HTTPS in HTTP between my proxy and server, like this : browser (8118) <-> (8118) privoxy (8888) <-> (8888) stunnel (server:443) <-web-> server This is my stunnel.conf : ---------------------------------------------------- ciphers = RC4-MD5:DES-CBC3-SHA verify = 0 debug = 7 client = yes [https] accept = 8888 connect = server.server.com:443 TIMEOUTclose = 0 ---------------------------------------------------- And my log : ---------------------------------------------------- 2006.03.31 11:40:02 LOG7[3396:2944]: RAND_status claims sufficient entropy for the PRNG 2006.03.31 11:40:02 LOG6[3396:2944]: PRNG seeded successfully 2006.03.31 11:40:02 LOG7[3396:2944]: SSL context initialized for service https 2006.03.31 11:40:02 LOG5[3396:2944]: stunnel 4.15 on x86-pc-mingw32-gnu with OpenSSL 0.9.7i 14 Oct 2005 2006.03.31 11:40:02 LOG5[3396:2944]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2006.03.31 11:40:02 LOG5[3396:2952]: No limit detected for the number of clients 2006.03.31 11:40:02 LOG7[3396:2952]: FD 192 in non-blocking mode 2006.03.31 11:40:02 LOG7[3396:2952]: SO_REUSEADDR option set on accept socket 2006.03.31 11:40:02 LOG7[3396:2952]: https bound to 0.0.0.0:8888 2006.03.31 11:40:07 LOG7[3396:2952]: https accepted FD=200 from 127.0.0.1:2414 2006.03.31 11:40:07 LOG7[3396:2952]: Creating a new thread 2006.03.31 11:40:07 LOG7[3396:2952]: New thread created 2006.03.31 11:40:07 LOG7[3396:3320]: https started 2006.03.31 11:40:07 LOG7[3396:3320]: FD 200 in non-blocking mode 2006.03.31 11:40:07 LOG5[3396:3320]: https connected from 127.0.0.1:2414 2006.03.31 11:40:07 LOG7[3396:3320]: FD 232 in non-blocking mode 2006.03.31 11:40:07 LOG7[3396:3320]: https connecting 195.101.206.82:443 2006.03.31 11:40:07 LOG7[3396:3320]: connect_wait: waiting 10 seconds 2006.03.31 11:40:07 LOG7[3396:3320]: connect_wait: connected 2006.03.31 11:40:07 LOG7[3396:3320]: Remote FD=232 initialized 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): before/connect initialization 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write client hello A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server hello A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server certificate A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server done A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write client key exchange A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write change cipher spec A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write finished A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 flush data 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read finished A 2006.03.31 11:40:07 LOG7[3396:3320]: 1 items in the session cache 2006.03.31 11:40:07 LOG7[3396:3320]: 1 client connects (SSL_connect()) 2006.03.31 11:40:07 LOG7[3396:3320]: 1 client connects that finished 2006.03.31 11:40:07 LOG7[3396:3320]: 0 client renegotiations requested 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server connects (SSL_accept()) 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server connects that finished 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server renegotiations requested 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache hits 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache misses 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache timeouts 2006.03.31 11:40:07 LOG6[3396:3320]: SSL connected: new session negotiated 2006.03.31 11:40:07 LOG6[3396:3320]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2006.03.31 11:40:07 LOG7[3396:3320]: Socket closed on read 2006.03.31 11:40:07 LOG7[3396:3320]: SSL write shutdown 2006.03.31 11:40:07 LOG7[3396:3320]: SSL alert (write): warning: close notify 2006.03.31 11:40:07 LOG7[3396:3320]: SSL_shutdown retrying 2006.03.31 11:40:07 LOG7[3396:3320]: SSL doesn't need to read or write 2006.03.31 11:40:07 LOG6[3396:3320]: s_poll_wait timeout: connection close 2006.03.31 11:40:07 LOG5[3396:3320]: Connection closed: 211 bytes sent to SSL, 163 bytes sent to socket 2006.03.31 11:40:07 LOG7[3396:3320]: https finished (0 left) 2006.03.31 11:40:07 LOG7[3396:2952]: https accepted FD=220 from 127.0.0.1:2417 2006.03.31 11:40:07 LOG7[3396:2952]: Creating a new thread 2006.03.31 11:40:07 LOG7[3396:2952]: New thread created 2006.03.31 11:40:07 LOG7[3396:3944]: https started 2006.03.31 11:40:07 LOG7[3396:3944]: FD 220 in non-blocking mode 2006.03.31 11:40:07 LOG5[3396:3944]: https connected from 127.0.0.1:2417 2006.03.31 11:40:07 LOG7[3396:3944]: FD 232 in non-blocking mode 2006.03.31 11:40:07 LOG7[3396:3944]: https connecting 195.101.206.82:443 2006.03.31 11:40:07 LOG7[3396:3944]: connect_wait: waiting 10 seconds 2006.03.31 11:40:08 LOG7[3396:3944]: connect_wait: connected 2006.03.31 11:40:08 LOG7[3396:3944]: Remote FD=232 initialized 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): before/connect initialization 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write client hello A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 read server hello A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 read finished A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write change cipher spec A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write finished A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 flush data 2006.03.31 11:40:08 LOG7[3396:3944]: 1 items in the session cache 2006.03.31 11:40:08 LOG7[3396:3944]: 2 client connects (SSL_connect()) 2006.03.31 11:40:08 LOG7[3396:3944]: 2 client connects that finished 2006.03.31 11:40:08 LOG7[3396:3944]: 0 client renegotiations requested 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server connects (SSL_accept()) 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server connects that finished 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server renegotiations requested 2006.03.31 11:40:08 LOG7[3396:3944]: 1 session cache hits 2006.03.31 11:40:08 LOG7[3396:3944]: 0 session cache misses 2006.03.31 11:40:08 LOG7[3396:3944]: 0 session cache timeouts 2006.03.31 11:40:08 LOG6[3396:3944]: SSL connected: previous session reused 2006.03.31 11:40:08 LOG7[3396:3944]: Socket closed on read 2006.03.31 11:40:08 LOG7[3396:3944]: SSL write shutdown 2006.03.31 11:40:08 LOG7[3396:3944]: SSL alert (write): warning: close notify 2006.03.31 11:40:08 LOG7[3396:3944]: SSL_shutdown retrying 2006.03.31 11:40:08 LOG7[3396:3944]: SSL doesn't need to read or write 2006.03.31 11:40:08 LOG6[3396:3944]: s_poll_wait timeout: connection close 2006.03.31 11:40:08 LOG5[3396:3944]: Connection closed: 211 bytes sent to SSL, 163 bytes sent to socket 2006.03.31 11:40:08 LOG7[3396:3944]: https finished (0 left) ---------------------------------------------------- Note the first "Socket closed on read". I think the problem is there. The web reply is "Bad Request (Invalid URL)" Where did I do a mistake ? Thanks for answer, Xavier

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Config for client proxy https (privoxy + stunnel)
by Xavier Cheney 31 Mar '06

31 Mar '06

Hi, I wan to customize web page before viewing by my browser Firefox. With "privoxy" (www.privoxy.org) I can modify (proxy filter) HTTP web page, but not HTTPS pages. So, I want to use stunnel, to transfer HTTPS in HTTP between my proxy and server, like this : browser (8118) <-> (8118) privoxy (8888) <-> (8888) stunnel (server:443) <-web-> server This is my stunnel.conf : ---------------------------------------------------- ciphers = RC4-MD5:DES-CBC3-SHA verify = 0 debug = 7 client = yes [https] accept = 8888 connect = server.server.com:443 TIMEOUTclose = 0 ---------------------------------------------------- And my log : ---------------------------------------------------- 2006.03.31 11:40:02 LOG7[3396:2944]: RAND_status claims sufficient entropy for the PRNG 2006.03.31 11:40:02 LOG6[3396:2944]: PRNG seeded successfully 2006.03.31 11:40:02 LOG7[3396:2944]: SSL context initialized for service https 2006.03.31 11:40:02 LOG5[3396:2944]: stunnel 4.15 on x86-pc-mingw32-gnu with OpenSSL 0.9.7i 14 Oct 2005 2006.03.31 11:40:02 LOG5[3396:2944]: Threading:WIN32 SSL:ENGINE Sockets:SELECT,IPv6 2006.03.31 11:40:02 LOG5[3396:2952]: No limit detected for the number of clients 2006.03.31 11:40:02 LOG7[3396:2952]: FD 192 in non-blocking mode 2006.03.31 11:40:02 LOG7[3396:2952]: SO_REUSEADDR option set on accept socket 2006.03.31 11:40:02 LOG7[3396:2952]: https bound to 0.0.0.0:8888 2006.03.31 11:40:07 LOG7[3396:2952]: https accepted FD=200 from 127.0.0.1:2414 2006.03.31 11:40:07 LOG7[3396:2952]: Creating a new thread 2006.03.31 11:40:07 LOG7[3396:2952]: New thread created 2006.03.31 11:40:07 LOG7[3396:3320]: https started 2006.03.31 11:40:07 LOG7[3396:3320]: FD 200 in non-blocking mode 2006.03.31 11:40:07 LOG5[3396:3320]: https connected from 127.0.0.1:2414 2006.03.31 11:40:07 LOG7[3396:3320]: FD 232 in non-blocking mode 2006.03.31 11:40:07 LOG7[3396:3320]: https connecting 195.101.206.82:443 2006.03.31 11:40:07 LOG7[3396:3320]: connect_wait: waiting 10 seconds 2006.03.31 11:40:07 LOG7[3396:3320]: connect_wait: connected 2006.03.31 11:40:07 LOG7[3396:3320]: Remote FD=232 initialized 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): before/connect initialization 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write client hello A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server hello A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server certificate A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read server done A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write client key exchange A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write change cipher spec A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 write finished A 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 flush data 2006.03.31 11:40:07 LOG7[3396:3320]: SSL state (connect): SSLv3 read finished A 2006.03.31 11:40:07 LOG7[3396:3320]: 1 items in the session cache 2006.03.31 11:40:07 LOG7[3396:3320]: 1 client connects (SSL_connect()) 2006.03.31 11:40:07 LOG7[3396:3320]: 1 client connects that finished 2006.03.31 11:40:07 LOG7[3396:3320]: 0 client renegotiations requested 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server connects (SSL_accept()) 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server connects that finished 2006.03.31 11:40:07 LOG7[3396:3320]: 0 server renegotiations requested 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache hits 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache misses 2006.03.31 11:40:07 LOG7[3396:3320]: 0 session cache timeouts 2006.03.31 11:40:07 LOG6[3396:3320]: SSL connected: new session negotiated 2006.03.31 11:40:07 LOG6[3396:3320]: Negotiated ciphers: RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 2006.03.31 11:40:07 LOG7[3396:3320]: Socket closed on read 2006.03.31 11:40:07 LOG7[3396:3320]: SSL write shutdown 2006.03.31 11:40:07 LOG7[3396:3320]: SSL alert (write): warning: close notify 2006.03.31 11:40:07 LOG7[3396:3320]: SSL_shutdown retrying 2006.03.31 11:40:07 LOG7[3396:3320]: SSL doesn't need to read or write 2006.03.31 11:40:07 LOG6[3396:3320]: s_poll_wait timeout: connection close 2006.03.31 11:40:07 LOG5[3396:3320]: Connection closed: 211 bytes sent to SSL, 163 bytes sent to socket 2006.03.31 11:40:07 LOG7[3396:3320]: https finished (0 left) 2006.03.31 11:40:07 LOG7[3396:2952]: https accepted FD=220 from 127.0.0.1:2417 2006.03.31 11:40:07 LOG7[3396:2952]: Creating a new thread 2006.03.31 11:40:07 LOG7[3396:2952]: New thread created 2006.03.31 11:40:07 LOG7[3396:3944]: https started 2006.03.31 11:40:07 LOG7[3396:3944]: FD 220 in non-blocking mode 2006.03.31 11:40:07 LOG5[3396:3944]: https connected from 127.0.0.1:2417 2006.03.31 11:40:07 LOG7[3396:3944]: FD 232 in non-blocking mode 2006.03.31 11:40:07 LOG7[3396:3944]: https connecting 195.101.206.82:443 2006.03.31 11:40:07 LOG7[3396:3944]: connect_wait: waiting 10 seconds 2006.03.31 11:40:08 LOG7[3396:3944]: connect_wait: connected 2006.03.31 11:40:08 LOG7[3396:3944]: Remote FD=232 initialized 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): before/connect initialization 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write client hello A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 read server hello A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 read finished A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write change cipher spec A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 write finished A 2006.03.31 11:40:08 LOG7[3396:3944]: SSL state (connect): SSLv3 flush data 2006.03.31 11:40:08 LOG7[3396:3944]: 1 items in the session cache 2006.03.31 11:40:08 LOG7[3396:3944]: 2 client connects (SSL_connect()) 2006.03.31 11:40:08 LOG7[3396:3944]: 2 client connects that finished 2006.03.31 11:40:08 LOG7[3396:3944]: 0 client renegotiations requested 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server connects (SSL_accept()) 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server connects that finished 2006.03.31 11:40:08 LOG7[3396:3944]: 0 server renegotiations requested 2006.03.31 11:40:08 LOG7[3396:3944]: 1 session cache hits 2006.03.31 11:40:08 LOG7[3396:3944]: 0 session cache misses 2006.03.31 11:40:08 LOG7[3396:3944]: 0 session cache timeouts 2006.03.31 11:40:08 LOG6[3396:3944]: SSL connected: previous session reused 2006.03.31 11:40:08 LOG7[3396:3944]: Socket closed on read 2006.03.31 11:40:08 LOG7[3396:3944]: SSL write shutdown 2006.03.31 11:40:08 LOG7[3396:3944]: SSL alert (write): warning: close notify 2006.03.31 11:40:08 LOG7[3396:3944]: SSL_shutdown retrying 2006.03.31 11:40:08 LOG7[3396:3944]: SSL doesn't need to read or write 2006.03.31 11:40:08 LOG6[3396:3944]: s_poll_wait timeout: connection close 2006.03.31 11:40:08 LOG5[3396:3944]: Connection closed: 211 bytes sent to SSL, 163 bytes sent to socket 2006.03.31 11:40:08 LOG7[3396:3944]: https finished (0 left) ---------------------------------------------------- Note the first "Socket closed on read". I think the problem is there. The web reply is "Bad Request (Invalid URL)" Where did I do a mistake ? Thanks for answer, Xavier --------------------------------- Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les tarifs exceptionnels pour appeler la France et l'international.Téléchargez la version beta. --------------------------------- Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les tarifs exceptionnels pour appeler la France et l'international.Téléchargez la version beta.

1 0

Stunnel client failed to connect to a server?
by Xia David You -X (xiyou - Varite Inc.＠Cisco) 31 Mar '06

31 Mar '06

Hi, I have a client which is build on stunnel which is failed to talk to a secured server while we can connect to the server with IE as client. We have both Server certificate and Client Certificate. From looking the log, it appears that the IE also got the same failure in the first step, but it did not give up and tried again with "2 1 0.0470 (0.0470) C>S SSLv2 compatible client hello" and successed. so what did we do wrong here? some extra openssl library need to be built in? thanks David Both Sever side SSL dump attached (IE client and Stunnel client).

1 0

unpublished Ceritificate
by Happy Manocha 28 Mar '06

28 Mar '06

Hi all, I am a newbie with Stunnel. Can anyone let me know how can I configure my client for a server , which does not have published certificate. Though I am able to connect but it gives a warning message "The server you are connected to is using a security certificate that could not be verifed...etc". Is there any way to avoid it? An early response will be appreciated. Regds Happy Manocha

2 1

stunnel runs in background but fails to do his job
by christof mestdag 19 Mar '06

19 Mar '06

hi, i'm having difficulties using the stunnel program. I've got some help to change the syntax from 3.X to 4.X but it doesn't work. I've got this config file -> client=yes output=/var/log/stunnel.log [ldaps] accept=localhost:389 connect=192.168.1.101:636 I run it with /usr/sbin/stunnel ./stunnel.conf -> check background: ps -ef | grep stunnel root 3270 ..... /usr/sbin/stunnel ./stunnel.conf Problem is when i close on server gate 389 i can't get any input. I expect the traffic going towards port 636 on server but it doenst. I can close port 636 and open just 389. He keeps sending everyting towards 389. I also tried to create a stunnel.conf by using make stunnel.conf in the tools directory ( in you tar.gz ) but nothing changes. /var/log/stunnel.log says -> date : stunnel 4.05 on i386-red hat .... with openssl 0.9.7a ->date : FD_SETSIZE=1024 file ulimt=1024 -> 500 clients allowed any input for my problem. It's kinda important. I'm really fed up with the tutorials which shows it works and everything always fails at my place :( greetz christof

1 0

converting old syntax to 4.x syntax
by christof mestdag 17 Mar '06

17 Mar '06

Hi, i've got a old syntax and i don't find what the new syntax might be. stunnel -c -d localhost:389 -r win2003server:636 ( I want to make a tunnel to the ssl port of the active directory server to allow password changes ) i've read a possibility which allows no use of certificates but it was in old syntax. any input to change that syntax? i thought it might be something like this. -> client=yes foreground=no accept = 389 connect = win2003server.FME.local what do i do with this. an upgrade manual speaks of an stunnel.conf file. But this one doesn't excists on my Red Hat Desktop computer. It says also that we have an /usr/local/etc/stunnel dir but i don't have that also. I only have an /etc/stunnel dir (which is totally empty ) and the /usr/sbin/stunnel tool ( version 4.05 ) thx in advance

2 2

Multiple Host Certificates
by Sligar, Benjamin 17 Mar '06

17 Mar '06

Is it possible to run one instance of stunnel and have it verify certain ports against different certificates? For instance: [listen1 5003] accept = 5003 connect = 10.61.0.132:7300 [listen2 5008] accept = 5008 connect = 10.61.0.132:7300 Would it be possible to have listen2 validate on a seperate certificate, or, will I need to run a second instance of stunnel on my box and have it point to the different certificate? Basically, I want to know if I can setup a different certificate on a per-port basis. I don't see any options in the definition of the listen port that I can specify a different CERT, only the default CERT option at the top of the config file. Version: stunnel-4.04 Options cert = /usr/local/conf/ssl.pem chroot = /usr/local/stunnel-4.04/var/run/stunnel/ pid = /stunnel.pid setuid = www setgid = webgroup options = NO_SSLv2 ciphers = DES-CBC3-SHA:IDEA-CBC-SHA:RC4-SHA:RC4-MD5:AES256-SHA:AES128-SHA uname -a Linux ssl 2.4.7-10 #1 Thu Sep 6 17:27:27 EDT 2001 i686 unknown gcc -v Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-98) openssl version OpenSSL 0.9.6b [engine] 9 Jul 2001 This e-mail message is for the sole use of the intended recipient(s) and may contain confidential and privileged information of Transaction Network Services. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.

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Help with config of stunnel.
by mike smith 16 Mar '06

16 Mar '06

I am trying to set up a tunnel for telnet. I am doing this just to learn how to get stunnel to work. I thought this would be easy way to learn how to use stunnel for other uses we have. My problem is I don't understand how to start it on the client side. I can telnet to the server without stunnel but I don't know how to start stunnel on the client side. The log file shows ssltelnet bound to 0.0.0.0:23 for the client and ssltelnet bound to 0.0.0.0:992 for the server If you have any ideas what I may need to do I would be greatfull. I'm sure that I'm missing a step configuring it. This is what my stunnel.conf files look like for the server cert = /usr/local/etc/stunnel/stunnel.pem chroot = /usr/local/var/run/stunnel/ pid = /stunnel.pid setuid = nobody setgid = nobody client = no debug = 7 output = /stunnel.log [ssltelnet] accept = 992 connect = 23 For the Client cert = /usr/local/etc/stunnel/stunnel.pem chroot = /usr/local/var/run/stunnel/ pid = /stunnel.pid setuid = nobody setgid = nobody client = yes debug = 7 output = /stunnel.log [ssltelnet] accept = 23 connect = 192.168.1.102:992 --------------------------------- Yahoo! Travel Find great deals to the top 10 hottest destinations! --------------------------------- Yahoo! Travel Find great deals to the top 10 hottest destinations!

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