When no password is set, we can issue for instance;
>> redis-cli keys *
or
>> redis-cli config set requirepass "aaaaaa"
However, after we have have issued the latter, the first no longer works and results in:
>> redis-cli keys *
(error) NOAUTH Authentication required.
We need to authenticate. Sure.
>> redis-cli AUTH aaaaaa
OK
>> redis-cli keys *
(error) NOAUTH Authentication required.
How do we authenticate and then able to execute a command?
Is this not possible? Heredocs only?
I've tried:
>> redis-cli AUTH aaaaaa && config set requirepass "aaaaaa"
But did not work. Also semicolon after aaaaaa. Not work.
How?
You can pass the -a argument for authenticating the redis-cli command like this:
redis-cli -h 127.0.0.1 -p 6379 -a mypassword keys *
The AUTH commands only last for the duration of the tcp connection. Each new invocation of redis-cli creates a new connection, thus you have to authenticate at each invocation.
It is possible to execute several redis commands on one invocation of redis-cli: they must be separated by \n
Thus this would work:
echo -e 'AUTH aaaaaa\nkeys *' | redis-cli
Note: The other answer also provides a way to pass arguments separated by \n to redis-cli
This seems to work:
redis-cli <<- 'EOF'
AUTH aaaaaa
config set requirepass aaaaaa
EOF
The answer from #aureliar is great. I prefer to use environment variables and ( since Redis 6 ) the default user:
▶ echo -e "AUTH default ${REDIS_PASSWORD}\nkeys *" | redis-cli
OK
1) "foo:superkey:13-June-2022"
Using a user instead of a global password is much better as you can restrict the commands and keys of a user. More details here.
Related
Redis monitor cmd is not working with authentication:
Cmd: redis-cli -h <redis_endpoint> -p <port> -n <database> -a <password> monitor
error: (error) ERR wrong number of arguments for 'MONITOR' command
But the same works with Redis without authentication:
redis-cli -h <redis_endpoint> -p 6379 monitor
Can someone help with correct redis-cli monitor cmd that works with database and password.
How to delete keys with pattern having redis-cli password?
Records i needs to remove:
redis-cli -p 6379 -a password KEYS "/st_files/281/*" | wc -l
9
I want to remove the values under /st_files/281/* Which has count 9.
My redis setup has password.
Redis version is 3.2.3
I tried:
redis-cli -p 6379 -a pssword KEYS "/st_files/281/*" | xargs redis-cli DEL
Result is:
(error) NOAUTH Authentication required.
Password i entered is the correct one.
Try:
redis-cli -a pssword KEYS "/st_files/281/*" | xargs redis-cli -a pssword DEL
I have URL and PORT of remote Redis server. I am able to write into Redis from Scala. However I want to connect to remote Redis via terminal using redis-server or something similar in order to make several call of hget, get, etc. (I can do it with my locally installed Redis without any problem).
redis-cli -h XXX.XXX.XXX.XXX -p YYYY
xxx.xxx.xxx.xxx is the IP address and yyyy is the port
EXAMPLE from my dev environment
redis-cli -h 10.144.62.3 -p 30000
REDIS CLI COMMANDS
Host, port, password and database By default redis-cli connects to the
server at 127.0.0.1 port 6379. As you can guess, you can easily change
this using command line options. To specify a different host name or
an IP address, use -h. In order to set a different port, use -p.
redis-cli -h redis15.localnet.org -p 6390 ping
There are two ways to connect remote redis server using redis-cli:
1. Using host & port individually as options in command
redis-cli -h host -p port
If your instance is password protected
redis-cli -h host -p port -a password
e.g. if my-web.cache.amazonaws.com is the host url and 6379 is the port
Then this will be the command:
redis-cli -h my-web.cache.amazonaws.com -p 6379
if 92.101.91.8 is the host IP address and 6379 is the port:
redis-cli -h 92.101.91.8 -p 6379
command if the instance is protected with password pass123:
redis-cli -h my-web.cache.amazonaws.com -p 6379 -a pass123
2. Using single uri option in command
redis-cli -u redis://password#host:port
command in a single uri form with username & password
redis-cli -u redis://username:password#host:port
e.g. for the same above host - port configuration command would be
redis-cli -u redis://pass123#my-web.cache.amazonaws.com:6379
command if username is also provided user123
redis-cli -u redis://user123:pass123#my-web.cache.amazonaws.com:6379
This detailed answer was for those who wants to check all options.
For more information check documentation: Redis command line usage
In Case of password also we need to pass one more parameter
redis-cli -h host -p port -a password
One thing that confused me a little bit with this command is that if redis-cli fails to connect using the passed connection string it will still put you in the redis-cli shell, i.e:
redis-cli
Could not connect to Redis at 127.0.0.1:6379: Connection refused
not connected>
You'll then need to exit to get yourself out of the shell. I wasn't paying much attention here and kept passing in new redis-cli commands wondering why the command wasn't using my passed connection string.
if you got Error: Server closed the connection
try with --tls switch:
redis-cli --tls -h my-redis.redis.cache.windows.net -p 6379 -a myRedisPassword
h 👉 hostname
p 👉 port
a 👉 password
Is it possible to copy all keys from one Redis instance to another remote instance using MIGRATE? I've tried COPY, REPLACE and KEYS without any luck. Each time I get a NOKEY response. If I use any of the MIGRATE commands with a single key it works.
Examples:
MIGRATE my.redis 6379 "*" 0 5000 REPLACE // NOKEY
MIGRATE my.redis 6379 "*" 0 5000 COPY // NOKEY
MIGRATE my.redis 6379 "" 0 5000 KEYS * // NOKEY
MIGRATE my.redis 6379 "" 0 5000 KEYS test // OK
This is an improvement on the answer provided by #ezain since I am unable to post comments. The command uses the correct redis syntax for processing batches of keys, but the arguments to xargs result in the command being called once for every key instead of just once with all the keys included (which means it'll take much more time to complete than is necessary). The following will be much faster in all cases:
redis-cli --raw KEYS '*' | xargs redis-cli MIGRATE my.redis 6379 "" 0 5000 KEYS
If the destination is password protected:
redis-cli --raw KEYS '*' | xargs redis-cli MIGRATE my.redis 6379 "" 0 5000 AUTH password-here KEYS
try run in your shell
redis-cli keys '*' | xargs -I '{}' redis-cli migrate my.redis 6379 "" 0 5000 KEYS '{}'
For a big DBs with a lot of keys it's better to use --scan instead of keys, to avoid Redis lock on KEYS command:
redis-cli --scan | xargs redis-cli MIGRATE my.redis 6379 "" 0 5000 KEYS
Not really related to the question, but in case someone will need it: Redis does not support MIGRATE with a password before 3.0. After 3.0, you can add AUTH parameter to check the permission:
MIGRATE 192.168.0.33 6379 "" 0 5000 AUTH mypassword KEYS user:{info}:age
If you are running on non-managed¹ redis instances, the most ideal way would probably to run the target instance as a replica temporarly and then disable (after all data is copied) the replication.
see the REPLICAOF command in redis. how to apply it (all commands on the target instance):
initiate the replication: $ replicaof source_hostname_or_ip source_port
after everything is done: $ replicaof no one
If you can't use this command¹ then you can try this script on the digital ocean blog: https://www.digitalocean.com/community/tutorials/how-to-migrate-redis-data-to-a-digitalocean-managed-database#step-3-%E2%80%94-building-the-migration-script
################
¹ - managed services often restrict the usage of this command see here or here.
I'm not advocating using this, but I tried all of these examples, and many others and did not work. I ended up doing it myself in PHP, so maybe this will help someone else who is stuck.
<?php
$redisSource = new Redis();
$redisSource->connect('1.2.3.4', 6379);
$redisSource->auth('password');
$redisTarget = new Redis();
$redisTarget->connect('127.0.0.1', 6379);
foreach($redisSource->keys('*') as $key) {
$redisTarget->set($key, $redisSource->get($key));
}
How to delete keys matching a certain pattern in redis using redis-cli. I would like to delete all foo's from the following list.
KEYS *
foo:1
foo:2
bar:1
foo:3
bar:2
foo:4
As mentioned in the comment on the question, there are many other answers to this here already. Definitely read the one linked above if you are thinking about doing this in a production sever.
The one I found most useful for occasional command-line cleanup was:
redis-cli KEYS "*" | xargs redis-cli DEL
from "How to atomically delete keys matching a pattern using Redis".
I wanted to delete thousands of keys by pattern after some searches I found these points:
if you have more than one db on redis you should determine the database using -n [number]
if you have a few keys use del but if there are thousands or millions of keys it's better to use unlink because unlink is non-blocking while del is blocking, for more information visit this page unlink vs del
also keys are like del and is blocking
so I used this code to delete keys by pattern:
redis-cli -n 2 --scan --pattern '[your pattern]' | xargs redis-cli -n 2 unlink
I just published a command line interface utility to npm and github that allows you to delete keys that match a given pattern (even *) from a Redis database.
You can find the utility here:
https://www.npmjs.com/package/redis-utils-cli
If someone want to do same operation in AWS Elasticache redis, then you can connect with SSH to your EC2 server which is supposed to access AWS Redis server then you can use below command.
redis-cli -h <HOST> -p <PORT> --scan --pattern "patter*n" | xargs redis-cli -h <HOST> -p <PORT> unlink
Replace Host and port with AWS redis server host and port.
Also if your redis setup needs password authentication then use,
redis-cli -h <HOST> -p <PORT> -a <PASSWORD> --scan --pattern "patter*n" | xargs redis-cli -h <HOST> -p <PORT> -a <PASSWORD> unlink
Replace Host, port and password with AWS redis server host, port and password.
You can also use above commands for localhost.