I installed the mypeb php apache erlang and more.
mypeb is here : http://code.google.com/p/mypeb/
I need to connect Erlang node and call it.
then my php code is :
$link = peb_connect('db#www.zangyu.org', 'abc');
if (!$link) {
die('Could not connect: ' . peb_error());
}
db#www.zangyu.org is my Erlang node,
I noticed the following connection error: ei_connect error
help so ,thanks.
I'd recommend using ProtocolBuffers or ASN.1 to communicate between PHP and Erlang instead of this bridge.
Related
I have disabled the authentication on my neo4j server, so I can connect using the cypher shell using no credentials as it follows and is working.
$ ./bin/cypher-shell -a 192.168.0.89
This is how I'm declaring my driver and the session, I also tried using neo4j://* instead of bolt://*:
driver, err := neo4j.NewDriver("bolt://192.168.0.89:7687", neo4j.NoAuth())
if err != nil {
return "", err
}
defer driver.Close()
session, _ := driver.NewSession(neo4j.SessionConfig{AccessMode: neo4j.AccessModeWrite})
defer session.Close()
But that doesn't work either. I'm getting this error when running the hello world from the neo4j olang driver page https://neo4j.com/developer/go/
TLS error: Remote end closed the connection, check that TLS is enabled on the server
There are the logs of the server when it starts:
2021-03-07 23:17:23.227+0000 INFO ======== Neo4j 4.2.3 ========
2021-03-07 23:17:24.119+0000 INFO Performing postInitialization step for component 'security-users' with version 2 and status CURRENT
2021-03-07 23:17:24.119+0000 INFO Updating the initial password in component 'security-users'
2021-03-07 23:17:24.243+0000 INFO Bolt enabled on 192.168.0.89:7687.
2021-03-07 23:17:25.139+0000 INFO Remote interface available at http://192.168.0.89:7474/
2021-03-07 23:17:25.140+0000 INFO Started.
These are all my config settings:
dbms.connector.bolt.advertised_address=192.168.0.89:7687
dbms.connector.bolt.enabled=true
dbms.connector.bolt.listen_address=192.168.0.89:7687
dbms.connector.bolt.tls_level=DISABLED
dbms.connector.http.advertised_address=192.168.0.89:7474
dbms.connector.http.enabled=true
dbms.connector.http.listen_address=192.168.0.89:7474
dbms.connector.https.enabled=false
dbms.default_advertised_address=192.168.0.89
dbms.default_database=neo4j
dbms.default_listen_address=192.168.0.89
dbms.directories.import=/home/eduardo/NEO4J/import
dbms.directories.neo4j_home=/home/eduardo/NEO4J
dbms.jvm.additional=-Dlog4j2.disable.jmx=true
dbms.security.auth_enabled=false
dbms.tx_log.rotation.retention_policy=1 days
dbms.tx_state.memory_allocation=ON_HEAP
dbms.windows_service_name=neo4j
Again, I can connect to the same host and the browser is also working fine:
Thanks in advance for any help :)
Adding to your answer: it is likely you're using the v1.x of the Go driver. If you switch to using the v4.x driver instead, you will not have to specify this config value.
You can upgrade by simply adding v4 in your import statement like so:
import github.com/neo4j/neo4j-go-driver/v4/neo4j
More info: https://github.com/neo4j/neo4j-go-driver/blob/4.2/MIGRATIONGUIDE.md
For anyone looking for the answer, the bolt driver will try to use TLS by default and since in my case is not configured, the encryption needs to be disabled in the driver constructor call.
driver, err := neo4j.NewDriver("bolt://192.168.0.89:7687", neo4j.NoAuth(), func(c *neo4j.Config) { c.Encrypted = false })
Hope this helps other people experiencing the same issue :)
I'm getting an authentication error when trying to connect ssh host.
The goal is to connect to the host using local forwarding. The command below is an example using drop bear ssh client to connect to host with local forwarding.
dbclient -N -i /opt/private-key-rsa.dropbear -L 2002:1.2.3.4:2006 -p 2002 -l
test_user 11.22.33.44
I have this code so far which returns empty connection
ip = "11.22.33.44"
user = "test_user"
port = 2002
ssh_config = [
user_interaction: false,
silently_accept_hosts: true,
user: String.to_charlist(user),
user_dir: String.to_charlist("/opt/")
]
# returns aunthentication error
{:ok, conn} = :ssh.connect(String.to_charlist(ip), port, ssh_config)
This is the error Im seeing
Server: 'SSH-2.0-OpenSSH_5.2'
Disconnects with code = 14 [RFC4253 11.1]: Unable to connect using the available authentication methods
State = {userauth,client}
Module = ssh_connection_handler, Line = 893.
Details:
User auth failed for: "test_user"
I'm a newbie to elixir and have been reading this erlang ssh document for 2 days. I did not find any examples in the documentation which makes it difficult to understand.
You are using non-default key name, private-key-rsa.dropbear. Erlang by default looks for this set of names:
From ssh module docs:
Optional: one or more User's private key(s) in case of publickey authorization. The default files are
id_dsa and id_dsa.pub
id_rsa and id_rsa.pub
id_ecdsa and id_ecdsa.pub`
To verify this is a reason, try renaming private-key-rsa.dropbear to id_rsa. If this works, the next step would be to add a key_cb callback to the ssh_config which should return the correct key file name.
One example implementation of a similar feature is labzero/ssh_client_key_api.
The solution was to convert dropbear key to ssh key. I have used this link as reference.
Here is the command to convert dropbear key to ssh key
/usr/lib/dropbear/dropbearconvert dropbear openssh /opt/private-key-rsa.dropbear /opt/id_rsa
In an effort to be OAuth'd with Etsy, I have tried countless solutions in C# to at least start the authentication process (ie get the login URL):
eg
mashery.com, http://term.ie/oauth/example/client.php and question #8321034
but the response is always the same:
oauth_problem=signature_invalid&debug_sbs=GET&https%3A%2F%2Fopenapi.etsy.com%2Fv2%2Foauth%2Frequest_token&oauth_consumer_key%3D...my-consumer-key...%26oauth_nonce%3D2de91e1361d1906bbae04b15f42ab38d%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1502362164%26oauth_version%3D1.0%26scope%3Dlistings_w%2520listings_r
and so I'm resorting to the dreaded world of PHP...
On my machine, I've installed the following (Windows 10):
XAMPP (xampp-win32-7.1.7-0-VC14-installer) with default options
JDK (jdk-8u144-windows-i586)
JRE (jre-8u144-windows-i586)
php_oauth.dll ([php_oauth-2.0.2-7.1-ts-vc14-x86.zip][4]) and copying it to C:\xampp\php\ext
[cacert.pem][4], (dated Jun 7 03:12:05 2017) and coping it to the following directories:
C:\xampp\perl\vendor\lib\Mozilla\CA
C:\xampp\phpMyAdmin\vendor\guzzle\guzzle\src\Guzzle\Http\Resources
Apache and Tomcat would not run to begin with from XAMPP because it said that ports 443 and 80 were being used/blocked and so I duly changed these to 444 and 122 in
C:\xampp\apache\conf\extra\httpd-ssl.conf
C:\xampp\apache\conf\httpd.conf
All good so far but when I run the following script in my browser (http://localhost:444/dashboard/etsy.php):
<?php
$base_uri = 'https://openapi.etsy.com';
$api_key = 'my-etsy-api-key';
$secret = 'my-etsy-api-secret';
$oauth = new OAuth($api_key, $secret, OAUTH_SIG_METHOD_HMACSHA1, OAUTH_AUTH_TYPE_URI);
$req_token = $oauth->getRequestToken($base_uri .= "/v2/oauth/request_token?scope=listings_w%20transactions_r", 'oob');
$login_url = $req_token['login_url'];
print "Please log in and allow access: $login_url \n\n";
$verifier = readline("Please enter verifier: ");
$verifier = trim($verifier);
$oauth->setToken($req_token['oauth_token'], $req_token['oauth_token_secret']);
$acc_token = $oauth->getAccessToken($base_uri .= "/v2/oauth/access_token", null, $verifier);
$oauth_token = $acc_token['oauth_token'];
$oauth_token_secret = $acc_token['oauth_token_secret'];
$oauth->setToken($oauth_token, $oauth_token_secret);
print "Token: $oauth_token \n\n";
print "Secret: $oauth_token_secret \n\n";
?>
I get the following error message:
Fatal error: Uncaught OAuthException: making the request failed (Peer
certificate cannot be authenticated with given CA certificates) in
C:\xampp\htdocs\dashboard\etsy.php:8 Stack trace: #0
C:\xampp\htdocs\dashboard\etsy.php(8):
OAuth->getRequestToken('https://openapi...', 'oob') #1 {main} thrown
in C:\xampp\htdocs\dashboard\etsy.php on line 8
I've tried running the script with each thread safe, x86 version of OAuth (http://windows.php.net/downloads/pecl/releases) - stop, restart Apache) but no luck.
I'm at my wits end.
How to I resolve this Peer certificate problem?
Simply disable the SSL on local.
$oauth->disableSSLChecks()
Oauth by default using CURL SSL Certificate. The simple way for local apache server is to disable it. Either configure the SSL for the CURL. It will also resolve the issue for oauth.
as per php documentation
we can set the certificate path simply.
$oauth->setCAPath("F:\xampp\php\extras\ssl\cacert.pem");
print_r($oauth->getCAPath());
You can also set the request engine to curl or php stream if the ssl is already configured.
Official PHP documentation
I can´t migrate the standart contracts that come with truffle init. Here´s what i do:
truffle init
truffle compile
truffle migrate
and this is what it generates when i init:
But when i migrate , the following list of errors shows up:
Error: Invalid JSON RPC response: ""
at Object.InvalidResponse (/usr/local/lib/node_modules/truffle/node_modules/web3/lib/web3/errors.js:35:16)
at XMLHttpRequest.request.onreadystatechange (/usr/local/lib/node_modules/truffle/node_modules/web3/lib/web3/httpprovider.js:115:32)
at XMLHttpRequestEventTarget.dispatchEvent (/usr/local/lib/node_modules/truffle/node_modules/xhr2/lib/xhr2.js:64:18)
at XMLHttpRequest._setReadyState (/usr/local/lib/node_modules/truffle/node_modules/xhr2/lib/xhr2.js:354:12)
at XMLHttpRequest._onHttpRequestError (/usr/local/lib/node_modules/truffle/node_modules/xhr2/lib/xhr2.js:544:12)
at ClientRequest.<anonymous> (/usr/local/lib/node_modules/truffle/node_modules/xhr2/lib/xhr2.js:414:24)
at emitOne (events.js:96:13)
at ClientRequest.emit (events.js:188:7)
at Socket.socketErrorListener (_http_client.js:309:9)
at emitOne (events.js:96:13)
As webjunkie comments:
testrpc
Check your truffle.js config port and ip is set to default 'localhost:8545'
truffle migrate
For Solidty To Migrate, The Local Ethereum Blockchain should be running already and the Smart Contract you want to migrate should go to the correct Local Ethereum Blockchain so you need to check the Port Number of the Local Ethereum Blockchain.
ganache-cli or testrpc (For Making a local Blockchain). It has the port number on which it is running written beneath. Such as http://localhost:8545.
Go to truffle.js file and check that port should be 8545.
Now Migrate the Smart Contract using truffle migrate.
The contract name should not be the same as the function name.
I have written these codes. But they did not work well. It hase some errors like this:
Warning: mysqli_connect() [function.mysqli-connect]: php_network_getaddresses: getaddrinfo failed: No such host is known. in C:\wamp\www...
and sometime is shows T_EXIT error.
My problem is in "or die" command. Suppose it cannot connect to database. Then it should switch on "or die" & terminates the the program. But it didn't do that. How can I fix it?
$dbc = mysqli_connect('localhost', 'user', 'pass', 'table')
or die('Error connecting to MySQL server.');
My problem is in "or die" command. Suppose it cannot connect to database. Then it should switch on "or die" & terminates the the program.
Answer comes Straight from PHP Manual
$link = mysqli_connect('localhost', 'my_user', 'my_password', 'my_db');
if (!$link) {
die('Connect Error (' . mysqli_connect_errno() . ') '.mysqli_connect_error());
}