On 08.08.2017 21:13, David Sommerseth wrote: > On 08/08/17 20:34, Leonardo Rodrigues wrote: >> >> You very likely created your certificated with MD5 hashing, which >> was disabled on newer OpenSSL versions of CentOS. >> >> Try: >> >> export NSS_HASH_ALG_SUPPORT=+MD5 >> export OPENSSL_ENABLE_MD5_VERIFY=1 >> >> before starting your OpenVPN daemon and watch if that make clients >> connect again ... > DON'T DO THAT. > > MD5 based certificates are broken. If you still use them, upgrade them > NOW. And this knowledge about the brokenness dates back to 2005. > > <http://eprint.iacr.org/2005/067.pdf> > <http://eprint.iacr.org/2005/102.pdf> > > Anyone using MD5 and re-enables them in the SSL libraries will put their > VPN's security at risk.
No worries, I don't use MD5, but disabling crl_verify as suggested did the trick. Now I still have the issue with generating new certificates. I will quote myself again "One update... I can no longer generate new certificates. It seemse that whichopensslcnf scripts can't find openssl.cnf (which is there in the same directory...) [root@vpn 2.0]# pwd /etc/openvpn/easy-rsa/2.0 [root@vpn 2.0]# ls -la drwx------. 3 nobody nobody 4096 Aug 8 20:25 . drwx------. 3 nobody nobody 33 Feb 6 2016 .. -rwx------. 1 nobody nobody 119 Feb 6 2016 build-ca -rwx------. 1 nobody nobody 352 Feb 6 2016 build-dh -rwx------. 1 nobody nobody 188 Feb 6 2016 build-inter -rwx------. 1 nobody nobody 163 Feb 6 2016 build-key -rwx------. 1 nobody nobody 157 Feb 6 2016 build-key-pass -rwx------. 1 nobody nobody 249 Feb 6 2016 build-key-pkcs12 -rwx------. 1 nobody nobody 268 Feb 6 2016 build-key-server -rwx------. 1 nobody nobody 213 Feb 6 2016 build-req -rwx------. 1 nobody nobody 158 Feb 6 2016 build-req-pass -rwx------. 1 nobody nobody 449 Feb 6 2016 clean-all -rwx------. 1 nobody nobody 424 Feb 6 2016 dh2048.pem -rwx------. 1 nobody nobody 1471 Feb 6 2016 inherit-inter drwx------ 2 nobody nobody 36864 Jul 26 15:07 keys -rwx------. 1 nobody nobody 302 Feb 6 2016 list-crl -rwx------. 1 nobody nobody 7791 Feb 6 2016 openssl-0.9.6.cnf -rwx------. 1 nobody nobody 8348 Feb 6 2016 openssl-0.9.8.cnf -rwx------ 1 nobody nobody 8247 Aug 8 18:37 openssl-1.0.0.cnf -rwx------ 1 nobody nobody 8247 Aug 8 19:14 openssl.cnf -rwx------. 1 nobody nobody 12966 Feb 6 2016 pkitool -rwx------. 1 nobody nobody 928 Feb 6 2016 revoke-full -rwx------. 1 nobody nobody 178 Feb 6 2016 sign-req -rwx------ 1 nobody nobody 2138 Aug 8 20:25 vars -rwx------. 1 nobody nobody 740 Feb 6 2016 whichopensslcnf root@vpn 2.0]# ./build-key xxx grep: /etc/openvpn/easy-rsa/2.0/openssl.cnf /etc/openvpn/easy-rsa/2.0: No such file or directory pkitool: KEY_CONFIG (set by the ./vars script) is pointing to the wrong version of openssl.cnf: /etc/openvpn/easy-rsa/2.0/openssl.cnf /etc/openvpn/easy-rsa/2.0 The correct version should have a comment that says: easy-rsa version 2.x" -- Mio Vlahović Linux/Network Administrator @ BCS d.o.o. GSM: +385 95 6308 809 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Openvpn-users mailing list Openvpn-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-users
