[Bug 1528251] Re: WARNING: no suitable primes in /etc/ssh/primes

[Alexander]

Perhaps the following is helpful in tracing the problem. It is an
excerpt from /var/log/auth.log covering the ssh login from the iPad on
the server (srv01) in the situation described earlier, logged at
LogLevel DEBUG3:

Mar 23 08:33:14 srv01 sshd[1782]: Connection from ***.***.***.66 port 59484 on ***.***.***.34 port ***22
Mar 23 08:33:14 srv01 sshd[1782]: debug1: Client protocol version 2.0; client software version OpenSSH_5.4
Mar 23 08:33:14 srv01 sshd[1782]: debug1: match: OpenSSH_5.4 pat OpenSSH_5* compat 0x0c000000
Mar 23 08:33:14 srv01 sshd[1782]: debug1: Enabling compatibility mode for protocol 2.0
Mar 23 08:33:14 srv01 sshd[1782]: debug1: Local version string SSH-2.0-OpenSSH_6.9p1 Ubuntu-2ubuntu0.1
Mar 23 08:33:14 srv01 sshd[1782]: debug2: fd 3 setting O_NONBLOCK
Mar 23 08:33:14 srv01 sshd[1782]: debug2: Network child is on pid 1783
Mar 23 08:33:14 srv01 sshd[1782]: debug3: preauth child monitor started
Mar 23 08:33:14 srv01 sshd[1782]: debug3: privsep user:group 104:65534 [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug1: permanently_set_uid: 104/65534 [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug1: list_hostkey_types: ssh-ed25519,ssh-rsa [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug1: SSH2_MSG_KEXINIT sent [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug1: SSH2_MSG_KEXINIT received [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: curve25519-sha256 at libssh.org,diffie-hellman-group-exchange-sha256 [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: ssh-ed25519,ssh-rsa [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: chacha20-poly1305 at openssh.com,aes256-gcm at openssh.com,aes256-ctr,aes192-ctr [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: chacha20-poly1305 at openssh.com,aes256-gcm at openssh.com,aes256-ctr,aes192-ctr [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: hmac-sha2-512-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-ripemd160-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160 [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: hmac-sha2-512-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-ripemd160-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160 [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: none,zlib at openssh.com [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: none,zlib at openssh.com [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit:  [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit:  [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: first_kex_follows 0  [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: reserved 0  [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-rsa,ssh-dss [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,aes256-cbc,rijndael-cbc at lysator.liu.se,aes192-cbc,aes128-cbc,blowfish-cbc,arcfour128,arcfour,cast128-cbc,3des-cbc [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,aes256-cbc,rijndael-cbc at lysator.liu.se,aes192-cbc,aes128-cbc,blowfish-cbc,arcfour128,arcfour,cast128-cbc,3des-cbc [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: hmac-sha2-512-etm at openssh.com,hmac-sha2-512,hmac-sha2-256-etm at openssh.com,hmac-sha2-256,hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,hmac-ripemd160,hmac-ripemd160 at openssh.com [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: hmac-sha2-512-etm at openssh.com,hmac-sha2-512,hmac-sha2-256-etm at openssh.com,hmac-sha2-256,hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,hmac-ripemd160,hmac-ripemd160 at openssh.com [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: zlib,zlib at openssh.com,none [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: zlib,zlib at openssh.com,none [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit:  [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit:  [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: first_kex_follows 0  [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug2: kex_parse_kexinit: reserved 0  [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug1: kex: client->server aes192-ctr hmac-sha2-512-etm at openssh.com zlib at openssh.com [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug1: kex: server->client aes192-ctr hmac-sha2-512-etm at openssh.com zlib at openssh.com [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug1: expecting SSH2_MSG_KEX_DH_GEX_REQUEST [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug3: mm_request_send entering: type 0 [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug3: mm_choose_dh: waiting for MONITOR_ANS_MODULI [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug3: mm_request_receive_expect entering: type 1 [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug3: mm_request_receive entering [preauth]
Mar 23 08:33:14 srv01 sshd[1782]: debug3: mm_request_receive entering
Mar 23 08:33:14 srv01 sshd[1782]: debug3: monitor_read: checking request 0
Mar 23 08:33:14 srv01 sshd[1782]: debug3: mm_answer_moduli: got parameters: 1024 1536 2048
Mar 23 08:33:14 srv01 sshd[1782]: WARNING: no suitable primes in /etc/ssh/primes

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https://bugs.launchpad.net/bugs/1528251

Title:
  WARNING: no suitable primes in /etc/ssh/primes

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