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how to check and set max_allowed_packet mysql variable [duplicate]
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max_allowed_packet
is set in mysql config, not on php side
[mysqld]
max_allowed_packet=16M
You can see it's curent value in mysql like this:
SHOW VARIABLES LIKE 'max_allowed_packet';
You can try to change it like this, but it's unlikely this will work on shared hostin...
Query EC2 tags from within instance
Amazon recently added the wonderful feature of tagging EC2 instances with key-value pairs to make management of large numbers of VMs a bit easier.
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How to get the instance id from within an ec2 instance?
How can I find out the instance id of an ec2 instance from within the ec2 instance?
32 Answers
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scp (secure copy) to ec2 instance without password
I have an EC2 instance running (FreeBSD 9 AMI ami-8cce3fe5), and I can ssh into it using my amazon-created key file without password prompt, no problem.
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SSH to Elastic Beanstalk instance
...ure out is how to SSH to a Beanstalk instance. I don't have a private key because Beanstalk generated the instance on my behalf.
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Add Keypair to existing EC2 instance
...instance. You can only use the new keypair to launch a new instance.
For recovery, if it's an EBS boot AMI, you can stop it, make a snapshot of the volume. Create a new volume based on it. And be able to use it back to start the old instance, create a new image, or recover data.
Though data at ep...
How to find Unused Amazon EC2 Security groups
I'm try to find a way to determine orphan security groups so I can clean up and get rid of them. Does anyone know of a way to discover unused security groups.
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PHP regular expressions: No ending delimiter '^' found in
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PHP regex strings need delimiters. Try:
$numpattern="/^([0-9]+)$/";
Also, note that you have a lower case o, not a zero. In addition, if you're just validating, you don't need the capturing group, and can simplify the rege...
Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
I want to use my Amazon ec2 instance but faced the following error:
29 Answers
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Trying to SSH into an Amazon Ec2 instance - permission error
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The problem is having wrong mod on the file.
Easily solved by executing -
chmod 400 mykey.pem
Taken from Amazon's instructions -
Your key file must not be publicly viewable for SSH to work. Use this
command if needed: chmod 400 mykey.pem
400 protects it by making it read only a...