java - JSch 0.1.54 dh-group14-sha1 Algorithm negotiation fail -


i have added java unlimited policy files , read solutions other posters have asked here, still can not solve problem.

  1. upgraded jsch 0.1.54
  2. installed unlimitedjcepolicy files. c:\program files\java\jdk1.7.0_21\jre\lib\security. have verified netbeans using instance of jdk.

i able connect ssh key-exchange group dh-group1-sha1 set on firewall, when change ssh key-exchange group dh-group14-sha1 receive following error: 

caused by: com.jcraft.jsch.jschexception: algorithm negotiation fail @ com.jcraft.jsch.session.receive_kexinit(session.java:590) @ com.jcraft.jsch.session.connect(session.java:320) @ com.jcraft.jsch.session.connect(session.java:183)

i create jsch session follows:

properties config = new properties(); config.put("kex", "diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256"); config.put("stricthostkeychecking", "no"); session.setconfig(config); session.connect();

i have followed solutions other questions have had, have far been unable solve issue. please help.

here log file server. 

ssh: host key initialised ssh1: starting ssh control process ssh1: exchanging versions - ssh-1.99-cisco-1.25  ssh1: send ssh message: outdata null  server version string:ssh-1.99-cisco-1.25 ssh1: receive ssh message: 83 (83) ssh1: client version - ssh-2.0-jsch-0.1.54  client version string:ssh-2.0-jsch-0.1.54  ssh2 1: ssh2_msg_kexinit sent ssh2 1: ssh2_msg_kexinit received ssh2: kex: client->server aes128-ctr hmac-md5 none ssh2: kex: server->client aes128-ctr hmac-md5 none ssh2 0: kex algo not supported: client diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchan ssh2 1: ssh: kex_choose_conf errorssh1: session disconnected ssh server - error 0x00 "internal error"

here jsch logs:

info: connection established info: remote version string: ssh-1.99-cisco-1.25 info: local version string: ssh-2.0-jsch-0.1.54 info: checkciphers: aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256 info: checkkexes: diffie-hellman-group14-sha1,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521 info: diffie-hellman-group14-sha1 not available. info: checksignatures: ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521 info: ssh_msg_kexinit sent info: ssh_msg_kexinit received info: kex: server: diffie-hellman-group14-sha1 info: kex: server: ssh-rsa info: kex: server: aes128-cbc,3des-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr info: kex: server: aes128-cbc,3des-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr info: kex: server: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96 info: kex: server: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96 info: kex: server: none info: kex: server: none info: kex: server:  info: kex: server:  info: kex: client: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 info: kex: client: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521 info: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc,aes192-ctr,aes192-cbc,aes256-ctr,aes256-cbc info: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc,aes192-ctr,aes192-cbc,aes256-ctr,aes256-cbc info: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96 info: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96 info: kex: client: none info: kex: client: none info: kex: client:  info: kex: client:

apparently need use jdk 8 "diffie-hellman-group14-sha1".

see jsch.java static block:

config.put("diffie-hellman-group14-sha1",             "com.jcraft.jsch.dhg14");    // available since jdk8.

Comments

Post a Comment

Popular posts from this blog

sql server - Cannot query correctly (MSSQL - PHP - JSON) -

i have little problem on project. , turns out query result returns nothing when value of first name or last name has 'ñ' in it. here's code config.php: <?php ini_set('mssql.charset', 'utf-8'); header('content-type: text/html; charset=utf-8'); $servername = "192.168.1.21"; /* ip add of db server */ $connection = array("database" => "db", "uid" => "?", "pwd" => "***"); $conn = sqlsrv_connect($servername, $connection); if(!$conn){ echo "connection not established."; die(print_r(sqlsrv_errors(), true)); } ?> myquery: $idnumber = $_post["idnum"]; $response = array(); $query2 = "select clname, cfname, cmname, cqualifier student cidno = '$idnumber'"; try{ $stmt2 = sqlsrv_query($conn, $query2); } catch(pdoexeption $ex){ $response["success"] = 0; $response["message"] = "d...
Read more

php - trouble displaying mysqli database results in correct order -

i have table in database stores events , date expire. want display events on website display current events first expired events after? i have tried following sql $sql = "select noticeid, notice, noticedesc, noticeimg, noticedate, expirydate tbl_notices group noticeid ,expired order expirydate asc"; but returns expired results first due expirydate being ordered asc in query. my tbl_notice structure looks this noticeid => int(4) notice => varchar(100) noticedesc => text noticedate => timestamp noticeimg => varchar(40) expirydate => datetime expired => int(1) 0 current or 1 expired my php code is $sql = "select noticeid, notice, noticedesc, noticeimg, noticedate, expirydate tbl_notices group noticeid ,expired order expirydate asc"; $result = mysqli_query($conn,$sql); if ($result->num_rows > 0) { // output data of each row while($row = $result->fetch_assoc()) { ...
Read more

C++ Linked List -

i trying create linked list download txt file , use linked list handle file line line. when handling downloaded linked list operations performed on such text editor would. encountering problems however. seems "node(string value)" section of code has wrong though original node() declaration no arguments passes. unable figure out quite is. node.h class node { public: node(); node(string value); void setnext(node *nextnode); // allows user set "next" pointer of node points friend class linkedlist; private: string data; // data box node* next; // pointer box }; node.cpp # include <string> # include "node.h" using namespace std; node::node() { data = ""; next = null; } node::node(string value) { data = value; next = null; } void node::setnext(node *nextnode) // allows user set "next" pointer of node points { this->next = nextnode; } your #include <string> ...
Read more