I want to take backup of database from amazon by using linux command .
I am trying for
mysqldump --databases mydbname -v -h XXXXX.XXXXXX.us-west-2.rds.amazonaws.com -u username -P 3306 -p > mydbname.sql
But it gives the error
mysqldump: Got error: 1045: Access denied for user 'username'#'125.94.62.234' (using password: YES) when trying to connect
Please help me out
First of all you need to add your ip address in AWS security group
you can check your ip address by type in google "what is my ip".
TO add in AWS - you need to login in your AWS site
GOTO EC2 services
then goto - Security groups under Network / security
check your used security group and then click into inbound rule
Add new rule
Select Mysql Aurora / TCP / 3306 / Custom IP / your ip address.
After doing all this you can use below command
mysqldump -u -p -h databasename > backup.sql
hope this can help you
Related
I am kind of new in the world of Raspberry Pi and Linux in general and I've run into a problem.
I installed weaved to have remote access to my raspberry Pi on my other computers. I have access to the web pages ive put in the Pi's www folder , phpmyadmin and page with php script (without SQL). However, as soon as page need a SQL connection, no information is displayed at all and I don't receive an error either. The same problem happen if I type the IP address of the Pi in the URL. Those pages works on localhost thought. The problem seems very similar to this post How do I open up my MySQL on my Raspberry Pi for Outside / Remote Connections? but after trying the first solution and second solution, it doesn't work at all.
Any idea of what would be the issue?
If your issue is not able to remotely connect with MySQL on Raspberry Pi, then try below steps. I had the same issue and got it resolved by performing below commands.
1) sudo nano /etc/mysql/my.cnf
2) # bind-address = 127.0.0.1 // comment this line out
bind-address = 0.0.0.0 //add this line just below above line
3) sudo /etc/init.d/mysql restart //restart mysql
4) sudo mysql -u root -p //login to mysql cli as user 'root'
5) GRANT ALL PRIVILEGES ON *.* TO 'root'#'%' IDENTIFIED BY 'beta' WITH GRANT OPTION;
Here 'root' is the mysql user and 'beta' is the password. Change it accordingly and execute above query in mysql cli.
For some reason, I've been unable to connect remotely to my MySQL server. I've tried everything and I'm still getting errors.
root#server1:/home/administrator# mysql -u monty -p -h www.ganganadores.cl
Enter password:
ERROR 1045 (28000): Access denied for user 'monty'#'server1.ganganadores.cl' (using password: YES)
Now, I've tried running
GRANT ALL ON *.* to monty#localhost IDENTIFIED BY 'XXXXX';
GRANT ALL ON *.* to monty#'%' IDENTIFIED BY 'XXXXXX';`
and still nothing!
What I'm doing wrong?
EDIT: my.cnf has commented out the bind ip .
To expose MySQL to anything other than localhost you will have to have the following line
For mysql version 5.6 and below
uncommented in /etc/mysql/my.cnf and assigned to your computers IP address and not loopback
For mysql version 5.7 and above
uncommented in /etc/mysql/mysql.conf.d/mysqld.cnf and assigned to your computers IP address and not loopback
#Replace xxx with your IP Address
bind-address = xxx.xxx.xxx.xxx
Or add a
bind-address = 0.0.0.0 if you don't want to specify the IP
Then stop and restart MySQL with the new my.cnf entry. Once running go to the terminal and enter the following command.
lsof -i -P | grep :3306
That should come back something like this with your actual IP in the xxx's
mysqld 1046 mysql 10u IPv4 5203 0t0 TCP xxx.xxx.xxx.xxx:3306 (LISTEN)
If the above statement returns correctly you will then be able to accept remote users. However for a remote user to connect with the correct priveleges you need to have that user created in both the localhost and '%' as in.
CREATE USER 'myuser'#'localhost' IDENTIFIED BY 'mypass';
CREATE USER 'myuser'#'%' IDENTIFIED BY 'mypass';
then,
GRANT ALL ON *.* TO 'myuser'#'localhost';
GRANT ALL ON *.* TO 'myuser'#'%';
and finally,
FLUSH PRIVILEGES;
EXIT;
If you don't have the same user created as above, when you logon locally you may inherit base localhost privileges and have access issues. If you want to restrict the access myuser has then you would need to read up on the GRANT statement syntax HERE If you get through all this and still have issues post some additional error output and the my.cnf appropriate lines.
NOTE: If lsof does not return or is not found you can install it HERE based on your Linux distribution. You do not need lsof to make things work, but it is extremely handy when things are not working as expected.
UPDATE: If even after adding/changing the bind-address in my.cnf did not work, then go and change it in the place it was originally declared:
/etc/mysql/mariadb.conf.d/50-server.cnf
Add few points on top of apesa's excellent post:
1) You can use command below to check the ip address mysql server is listening
netstat -nlt | grep 3306
sample result:
tcp 0 0 xxx.xxx.xxx.xxx:3306 0.0.0.0:* LISTEN
2) Use FLUSH PRIVILEGES to force grant tables to be loaded if for some reason the changes not take effective immediately
GRANT ALL ON *.* TO 'user'#'localhost' IDENTIFIED BY 'passwd' WITH GRANT OPTION;
GRANT ALL ON *.* TO 'user'#'%' IDENTIFIED BY 'passwd' WITH GRANT OPTION;
FLUSH PRIVILEGES;
EXIT;
user == the user u use to connect to mysql ex.root
passwd == the password u use to connect to mysql with
3) If netfilter firewall is enabled (sudo ufw enable) on mysql server machine, do the following to open port 3306 for remote access:
sudo ufw allow 3306
check status using
sudo ufw status
4) Once a remote connection is established, it can be verified in either client or server machine using commands
netstat -an | grep 3306
netstat -an | grep -i established
MySQL only listens to localhost, if we want to enable the remote access to it, then we need to made some changes in my.cnf file:
sudo nano /etc/mysql/my.cnf
We need to comment out the bind-address and skip-external-locking lines:
#bind-address = 127.0.0.1
# skip-external-locking
After making these changes, we need to restart the mysql service:
sudo service mysql restart
You are using ubuntu 12 (quite old one)
First, Open the /etc/mysql/mysql.conf.d/mysqld.cnf file (/etc/mysql/my.cnf in Ubuntu 14.04 and earlier versions
Under the [mysqld] Locate the Line,
bind-address = 127.0.0.1
And change it to,
bind-address = 0.0.0.0
or comment it
Then, Restart the Ubuntu MysQL Server
systemctl restart mysql.service
Now Ubuntu Server will allow remote access to the MySQL Server, But still you need to configure MySQL users to allow access from any host.
User must be 'username'#'%' with all the required grants
To make sure that, MySQL server listens on all interfaces, run the netstat command as follows.
netstat -tulnp | grep mysql
Hope this works !
If testing on Windows, don't forget to open port 3306.
In my case I was using MySql Server version: 8.0.22
I had to add
bind-address = 0.0.0.0
and change this line to be
mysqlx-bind-address = 0.0.0.0
in file at
/etc/mysql/mysql.conf.d
then restart MySQL by running
sudo service mysql restart
I was facing the same problem when I was trying to connect Mysql to a Remote Server. I had found out that I had to change the bind-address to the current private IP address of the DB server.
But when I was trying to add the bind-address =0.0.0.0 line in my.cnf file, it was not understanding the line when I tried to create a DB.
Upon searching, I found out the original place where bind-address was declared.
The actual declaration is in : /etc/mysql/mariadb.conf.d/50-server.cnf
Therefore I changed the bind-address directly there and then all seems working.
I am trying to connect to mysql using PHP in ubuntu LAMP. I can login to phpmyadmin , but not able to connect using php code. The code was working well in XAMPP .
I am using the following code
$con=mysql_connect("127.0.0.1","myusername","mypassword");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
But it shows the following error
Could not connect: Access denied for user 'root'#'localhost' (using password: YES)
There is 3 (that i know of) posible solutions to this depending on the problem.
There is a firewall in ubuntu that you need to open, you do this by granting access in IPtables.
/sbin/iptables -A INPUT -i eth0 -p tcp --destination-port 3306 -j ACCEPT
And now we should be able to login to our server from our local machine:
mysql -h255.112.324.12 -uroot -pMyPASSWORD
You need to grant access to mysql: https://askubuntu.com/questions/159053/mysql-server-not-accessible-from-remote-machine
as root, open your /etc/mysql/my.cnf with your favorite editor
look for the [mysqld] section, and in there for the bind-address keyword. This usually is set to 127.0.0.1 -- change that to match your "normal" IP-address
save the file, and reload the service (e.g. using service mysql restart)
Last but not least you need to give remote access in mysql:
GRANT ALL ON mydb.* TO root#'%' IDENTIFIED BY 'MyPASSWORD';
Source: http://web.archive.org/web/20120930214828/http://chosencollective.com/technology/how-to-enable-remote-access-to-mysql + Many sleepless nights.
Hi i am using postgresql .
my
Postgres User : postgres
Passwprd : abc123
but when i type root#xxxx:~#psql -U postgres -W
it says
root#xxxx:~# Ident authentication failed for user "root"
but when i su postgres cd and then type following command
#psql -U postgres -W
it is working correctly and i can access to all databases .
when i try to access my site it gives me the error in posstgres error log
password authentication failed for user "postgres"
why is this happening , please help me , thanks in advance
UPDATE
my pg_hba.conf
# Database administrative login by Unix domain socket
local all postgres trust
# TYPE DATABASE USER CIDR-ADDRESS METHOD
# "local" is for Unix domain socket connections only
local all all trust
# IPv4 local connections:
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 md5
You have to create a role name root
create role root login
I'm attempting to connect to a remote server, which I'll refer to as machine A. I've created a user following the instructions here
CREATE USER 'monty'#'localhost' IDENTIFIED BY 'some_pass';
GRANT ALL PRIVILEGES ON *.* TO 'monty'#'localhost'
WITH GRANT OPTION;
CREATE USER 'monty'#'%' IDENTIFIED BY 'some_pass';
GRANT ALL PRIVILEGES ON *.* TO 'monty'#'%'
WITH GRANT OPTION;
On machine A I can run the command
mysql -u monty -h website.com -p
This connects to sql with no problem. However, when attempting to do this from some machine B I receive the error:
ERROR 2003 (HY000): Can't connect to MySQL server on 'website.com' (113)
I've also commented out the following line:
# bind-address = 127.0.0.1
in the /etc/mysql/my.cnf file. Still no luck connecting from a remote connection. Any obvious things that I might be missing? Any feedback as always is very much appreciated.
I think it's your GRANT that needs fixing.
GRANT ALL PRIVILEGES ON *.* TO 'monty'#'localhost'
Might need to be
GRANT ALL PRIVILEGES ON *.* TO 'monty'#'website.com'
You're going to want to make sure things are secure though.
It's usually best practice to try not to allow outside mysql connects that aren't from localhost.
It looks like the 'website.com' address cannot be resolved from the machine B. Please try to connect the MySQL server using the IP address of machine A, i.e.:
mysql -u monty -h x.x.x.x -p
If it will work, please make sure you mapped the IP address of the machine A to the name 'website.com' correctly.
My problem was that the firewall was blocking the connection.
I was using CentOS 7 and was getting this error:
mysql -usomeuser -h192.168.194.4 -p somedb
ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.194.4' (113)
So, I installed telnet to try and got this:
[root#vm3 config]# telnet 192.168.194.4 3306
Trying 192.168.194.4...
telnet: connect to address 192.168.194.4: No route to host
and as others noted, the error 113 is "No route to host" which is not a MySQL config issue.
I could have just opened 3306 to the world or just the one IP I was connecting from, but instead, I decided to create a new zone since it was for my ESX host's internal "hostonly" network.
On the host running MySQL (MariaDB), I ran these firewall commands:
firewall-cmd --new-zone=esxlocalhost --permanent
firewall-cmd --reload
firewall-cmd --zone=esxlocalhost --permanent --add-source=192.168.194.0/24
firewall-cmd --zone=esxlocalhost --permanent --add-port=3306/tcp
firewall-cmd --reload
Once that was done, I could connect on the client:
mysql -usomeuser -h192.168.194.4 -p somedb
Enter password:
And life was good