SQLSTATE[08006] [7] expected authentication request from server, but received _ - postgresql

I configured my application (laravel 5.3) with travis-ci to work with postgresql database, but I got error in matrix build:
SQLSTATE[08006] [7] expected authentication request from server, but received _
I tried to change pgsql version to 9.4, with no success.
When SSL Mode is set to "prefer", build throws:
SQLSTATE[08006] [7] received invalid response to SSL negotiation: _
On mysql driver works fine and build passes.
Personally, I prefer postgresql rather than mysql, so I asking for help how to resolve this problem.
Thanks.

Had the same error.
In laravel config for Postgresql by default it hase port 3306,
The correct one is 5432.
Or check your system

Related

Authentication Issues (KRB5\GSS)

We are looking to migrate some systems away from MSSQL. We have our first few environments built and currently using LDAP, which is OK but has a good number of flaws.
I followed this link to setup Kreberos\GSS for the most part: https://info.crunchydata.com/blog/windows-active-directory-postgresql-gssapi-kerberos-authentication
Off the bat I got the below error when trying to connect:
psql: error: SSPI continuation error: The specified target is unknown or unreachable
I believe the SPN is setup properly:
setspn -S POSTGRES/server.domain.local domain\service_account
I suspect something is wrong in the keytab file, as there is an extra "" between the server FQDN and domain:
Keytab name: FILE:/opt/pgsql/server.keytab
KVNO Principal
---- --------------------------------------------------------------------------
5 postgres#server.domain.local\#DOMAIN.LOCAL
Server side error:
2020-12-28 18:37:43.820 EST [64534] user#DOMAIN.LOCAL#postgres FATAL: GSSAPI authentication failed for user "user#DOMAIN.LOCAL"
2020-12-28 18:37:43.820 EST [64534] user#DOMAIN.LOCAL#postgres DETAIL: Connection matched pg_hba.conf line 95: "host all all 0.0.0.0/0 gss"
I'd appreciate any feedback and thank you!

no pg_hba.conf entry for host / Connect call failed / Invalid data directory for cluster 12 main - Postgresql Ubuntu

I'm trying to move my bot to an Ubuntu virtual server from Vultr but it's having a problem connecting to the postgres database. I've tried editing the config from md5 to true, and host to local, etc. But those only give me different errors and also make it stop working on my original machine too. It's working perfectly fine on my Windows machine. Here is the error I'm facing:
asyncpg.exceptions.InvalidAuthorizationSpecificationError: no pg_hba.conf entry for host "[local]", user "postgres", database "xxx", SSL off
So I've tried to change this line:
async def create_db_pool():
bot.pg_con = await asyncpg.create_pool(database='xxx', user='postgres', password='???')
to this:
async def create_db_pool():
bot.pg_con = await asyncpg.create_pool(database='xxx', user='postgres', password='???', ssl=True)
and that gives me this error:
asyncpg.exceptions._base.InterfaceError: `ssl` parameter can only be enabled for TCP addresses, got a UNIX socket path: '/run/postgresql/.s.PGSQL.5432'
So I don't know what else to try. I've been stuck on this for a while. If it's relevant, it connects at the bottom of the bot.py file like this:
bot.loop.run_until_complete(create_db_pool())
Whether ssl is True or not, the database seems to still function on my Windows machine. But I can't get it to work on my Ubuntu virtual server.
If I edit my config to this:
# TYPE DATABASE USER ADDRESS METHOD
# IPv4 local connections:
host all all 0.0.0.0/0 md5
# IPv6 local connections:
host all all ::/0 md5
# Allow replication connections from localhost, by a user with the
# replication privilege.
host replication all 0.0.0.0/0 md5
host replication all ::/0 md5
Then I get a call error like this:
OSError: Multiple exceptions: [Errno 111] Connect call failed ('::1', 5432, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 5432)
This is really driving me crazy. I have no idea what to do. I bought this virtual server to host my bot on but I can't even get it to connect to the database.
When I simply type psql in the terminal, I get this error:
Error: Invalid data directory for cluster 12 main
Postgres is not working as intended in basically any way. I'm using Vultr.com to host the Ubuntu server, if that matters. And connecting with PuTTy.
Your pg_hba.conf has multiple syntax errors. The "localhost" connection type is not allowed at all, and the "local" connection type does not accept an IP address field. The server would refuse to start/restart with the file you show, and if you try to reload a running server it will just keep using the previous settings.
LOG: invalid connection type "localhost"
CONTEXT: line 4 of configuration file "/home/jjanes/pgsql/data/pg_hba.conf"
LOG: invalid authentication method "127.0.0.1/32"
CONTEXT: line 5 of configuration file "/home/jjanes/pgsql/data/pg_hba.conf"
LOG: invalid authentication method "::1/128"
CONTEXT: line 9 of configuration file "/home/jjanes/pgsql/data/pg_hba.conf"
LOG: invalid connection type "localhost"
CONTEXT: line 10 of configuration file "/home/jjanes/pgsql/data/pg_hba.conf"
LOG: invalid authentication method "127.0.0.1/32"
CONTEXT: line 102 of configuration file "/home/jjanes/pgsql/data/pg_hba.conf"
FATAL: could not load pg_hba.conf
LOG: database system is shut down

How to connect to PostgreSQL from Phoenix Web App via SSL?

When trying to run Elixir (Phoenix) Web Application using PostgreSQL Database hosted 3rd party "Database-as-a-Service" (Azure Database for PostgreSQL).
We attempt to start the app with mix phoenix.server we see the following error:
[info] Running Pxblog.Endpoint with Cowboy using http://localhost:4000
[error] GenServer #PID<0.247.0> terminating
** (FunctionClauseError) no function clause matching in Postgrex.Messages.decode_fields/1
(postgrex) lib/postgrex/messages.ex:339: Postgrex.Messages.decode_fields("")
(postgrex) lib/postgrex/messages.ex:344: Postgrex.Messages.decode_fields/1
(postgrex) lib/postgrex/messages.ex:344: Postgrex.Messages.decode_fields/1
(postgrex) lib/postgrex/messages.ex:131: Postgrex.Messages.parse/3
(postgrex) lib/postgrex/protocol.ex:1842: Postgrex.Protocol.msg_decode/1
(postgrex) lib/postgrex/protocol.ex:1816: Postgrex.Protocol.msg_recv/3
(postgrex) lib/postgrex/protocol.ex:560: Postgrex.Protocol.auth_recv/3
(postgrex) lib/postgrex/protocol.ex:475: Postgrex.Protocol.handshake/2
(db_connection) lib/db_connection/connection.ex:134: DBConnection.Connection.connect/2
(connection) lib/connection.ex:622: Connection.enter_connect/5
(stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3
Last message: nil
State: Postgrex.Protocol
Insight: "Enforce SSL" was Enabled on the Azure DB ...
Through investigation we realised that the error is cause because the Azure PostgreSQL Service had Enforce SSL Connection set to Enabled (by default):
We think having "Enforce SSL" to Enabled is good for Security, but we aren't able to get it working with Phoenix ...
(Temporary) Solution: Disable "Enforce SSL"
So, we have (temporarily) disabled SSL for now:
But we would much prefer a "permanent" solution to this issue.
Preferred Solution: Use SSL when Connecting to PostgreSQL
If anyone can clarify (or point us to) how to connect to PostgreSQL over SSL from Phoenix/Ecto
we would be super grateful! :-)
Does the Application (Phoenix) Server need to have an SSL Certificated configured in order to connect from the App server to the DB Server...?
e.g: http://www.phoenixframework.org/docs/configuration-for-ssl ?
Microsoft has the following help guide:
https://learn.microsoft.com/en-us/azure/postgresql/concepts-ssl-connection-security
It seems to suggest we need OpenSSL on the App Server ... can anyone confirm?
Background
I was experiencing the same problem connecting Phoenix/Ecto/Postgrex to Azure Database for PostgreSQL server. Even after setting ssl: true in my Repo configuration, I was still not able to connect to the database with Postgrex even though connecting using psql "postgresql://...?sslmode=require" -U ... on the same machine succeeded. The error returned with ssl: true was:
[error] Postgrex.Protocol (#PID<0.1853.0>) failed to connect: **(DBConnection.ConnectionError) ssl connect: closed
** (DBConnection.ConnectionError) connection not available because of disconnection
(db_connection) lib/db_connection.ex:926: DBConnection.checkout/2
...
After digging through the source code, I discovered that the failing call was actually the ssl.connect/3 call from the Erlang ssl module:
# deps/postgrex/lib/postgrex/protocol.ex:535
defp ssl_connect(%{sock: {:gen_tcp, sock}, timeout: timeout} = s, status) do
case :ssl.connect(sock, status.opts[:ssl_opts] || [], timeout) do
{:ok, ssl_sock} ->
startup(%{s | sock: {:ssl, ssl_sock}}, status)
{:error, reason} ->
disconnect(s, :ssl, "connect", reason)
end
end
Doing some snooping with Wireshark, I was able to see that when connecting successfully with psql, I could see packets with TLSV1.2 as the protocol, but when postgrex was connecting with ssl: true I was seeing packets with SSL as the protocol before failing to connect.
Looking at the Ecto.Adapters.Postgres options docs, you'll see there's an ssl_opts configuration option which ends up getting passed to :ssl.connect/3 in which you can set versions to override the TLS version(s) used to connect.
Solution
I was able to connect to the database by adding the following to my Repo configuration:
ssl_opts: [
versions: [:"tlsv1.2"]
]
My full configuration ended up looking like this:
config :myapp, Myapp.Repo,
adapter: Ecto.Adapters.Postgres,
username: "myapp#dev-db",
password: "...",
database: "myapp_dev",
port: 5432,
hostname: "dev-db.postgres.database.azure.com",
pool_size: 10,
ssl: true,
ssl_opts: [
versions: [:"tlsv1.2"]
]
I'm not really sure why the TLS version needs to be set explicitly, perhaps someone with more expertise in this area can shed some light on this.
You might also need to add your ip (or ip range) to the postgres firewall in azure. It's right under the SSL settings.
Erlang is usually built with OpenSSL, and does require it for several libraries. You haven't posted the error you get with ssl: true, but if your erlang was built without OpenSSL it might be the cause. From the build/install guide:
OpenSSL -- The opensource toolkit for Secure Socket Layer and
Transport Layer Security. Required for building the application
crypto. Further, ssl and ssh require a working crypto application and
will also be skipped if OpenSSL is missing. The public_key application
is available without crypto, but the functionality will be very
limited.
What output do you get if you run :ssl.versions() in an iex shell?
Here is my Database init() connection code using ssl and certificates. Check your ssl_opts settings, maybe.
def init() do
case Postgrex.start_link(
hostname: App.Endpoint.config(:dbhost),
username: App.Endpoint.config(:username),
database: App.Endpoint.config(:dbname),
port: App.Endpoint.config(:dbport),
ssl: true,
ssl_opts: [
keyfile: "priv/cert.key",
certfile: "priv/cert.crt"
]) do
{:ok, postgrex} ->
postgrex
_ ->
:error
end
end
To add to the above answers, here is my ssl_opts block when using self-signed certificates and auth-options set to clientcert=verify_full in your pg_hba.conf. My connection is using TLSv1.3.
ssl_opts: [
verify: :verify_peer,
versions: [:"tlsv1.3"],
ciphers: :ssl.cipher_suites(:all, {3,4}),
cacertfile: Path.expand("priv/certs/ca-cert.pem"),
certfile: Path.expand("priv/certs/client-cert.pem"),
keyfile: Path.expand("priv/certs/client-key.pem")
],

Can't get Zabbix to email alerts

I've recently spun up a new Zabbix 3.0 instance on Ubuntu 16.04 using Php 7.0 and I am running into a lot of issues trying to get it to e-mail the Zabbix administrators. We are trying to use Amazon SES to send out the e-mails. For our setup, we have a usename & password that was generated by SES we are using port 587 with SSL/TLS connection. I've made sure that the alert is enabled and that the E-mail media type was enabled as well. I've also double checked the Zabbix is compiled with SMTP & TLS support. I've also verified that the Zabbix server can get to the Amazon SMTP endpoint on port 587. From the messages it seems to be some form of a communication issue, but everything I've tried isn't really getting me anywhere.
SSL connect error: Encountered end of file
26163:20170515:131115.744 * NSS error -5938 (PR_END_OF_FILE_ERROR)
26163:20170515:131115.744 * Encountered end of file
26163:20170515:131115.744 * Closing connection 0
26163:20170515:131115.744 SSL connect error: Encountered end of file
26163:20170515:131115.744 End of send_email():FAIL
26163:20170515:131115.744 End of execute_action():FAIL
26163:20170515:131115.744 error sending alert ID [812]
26163:20170515:131115.744 query without transaction detected
26163:20170515:131115.744 query [txnlev:0] [update alerts set
retries=1,error='SSL connect error: Encountered end of file' where
alertid=812]
26163:20170515:131115.746 In execute_action(): alertid [813] mediatype [0]
26163:20170515:131115.746 In send_email() smtp_server:'email-smtp.us-east-
1.amazonaws.com' smtp_port:587 smtp_security:2 smtp_authentication:1
26163:20170515:131115.750 * Trying 54.235.77.145...
26163:20170515:131115.752 * Connected to email-smtp.us-east-1.amazonaws.com
(54.235.77.145) port 587 (#0)
26163:20170515:131115.752 * WARNING: failed to load NSS PEM library
libnsspem.so. Using OpenSSL PEM certificates will not work.
26166:20170515:131115.761 __zbx_zbx_setproctitle() title:'http poller #1
[got 0 values in 0.000736 sec, getting values]'
26166:20170515:131115.761 In process_httptests()
26166:20170515:131115.761 query [txnlev:0] [select h.hostid,h.host,h.name,t.httptestid,t.name,t.variables,t.headers,t.agent,t.authentication,t.http_user,t.http_password,t.http_proxy,t.retries,t.ssl_cert_file,t.ssl_key_file,t.ssl_key_password,t.verify_peer,t.verify_host from httptest t,hosts h where t.hostid=h.hostid and t.nextcheck<=1494868275 and mod(t.httptestid,1)=0 and t.status=0 and h.proxy_hostid is null and h.status=0 and (h.maintenance_status=0 or h.maintenance_type=0)]
26166:20170515:131115.762 End of process_httptests()
26166:20170515:131115.762 query [txnlev:0] [select min(t.nextcheck) from httptest t,hosts h where t.hostid=h.hostid and mod(t.httptestid,1)=0 and t.status=0 and h.proxy_hostid is null and h.status=0 and (h.maintenance_status=0 or h.maintenance_type=0)]
26166:20170515:131115.762 No httptests to process in get_minnextcheck.
Just for reference, I do have Zabbix running off of HTTPS. To get that configured I just made a change to the Apache sites-enabled default file to point to the certificate on the local machine. They are signed certificates. I had also installed the most recent openssl package
Has anyone ran into this issue before or know of what might be happening?
Any help would be appreciated!
Thanks :)
587 is STARTTLS, use 465 for SSL/TSL (don't forget to configure security group):
You may have problems with email/email domain verification. Be sure that's OK.

EAC Admin Console is not opening up?

When I try to hit my site, I am getting the following error:
Error Tue May 10 16:54:40 IST 2016 1462879480679
/atg/endeca/assembler/droplet/InvokeAssembler A problem occurred
assembling the content for content item /content/Web/Home Pages. The
response received was {previewModuleUrl=http://localhost:8006/ifcr,
#type=ContentSlot, atg:currentSiteProductionURL=www.local.com:7103,
canonicalLink=com.endeca.infront.cartridge.model.NavigationAction#49dded95,
ruleLimit=1, #error=com.endeca.infront.content.ContentException:
com.endeca.navigation.ENEConnectionException: Error establishing
connection to retrieve Navigation Engine request
'http://localhost:15000/graph?node=0&profiles=NoPriceRange|site&offset=0&nbins=0&merchdebug=1&irversion=640'.
Tried all: '2' addresses, but could not connect over HTTP to server:
'localhost', port: '15000' Check MDEX Logs and specified query
parameters. , contentCollection=/content/Web/Home Pages}. Servicing
the error open parameter.
When I try to access EAC Admin Console to restart MDEX Engine, it is not getting loaded. Why that might be?
Ensure your endeca servers are running. Try to access localhost:8500/cas?wsdl
Is the Dgraph port provided as 15000 in all configurations?