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create bucket

aws s3 mb s3://johntest123/

rsync all files from a given folder to S3 bucket:

aws s3 sync /home/ec2-user/ s3://johntest123/

Remove bucket

aws s3 rb --force s3://johntest123/

If apache docker container does not start then make these changes...

vi /etc/sysctl.conf
net.ipv4.ip_forward = 1
fs.file-max = 50000000

Reboot or restart service:
sysctl -p

If pip is not installed, then the following command will not work

pip install awscli

We need to install pip from EPEL like this..

yum install epel-release
yum install python-pip

remove quotes from mysql dump file
cat merged.txt | tr -d \'\" > mergedx.txt

Use this command to convert private key to public key.

ssh-keygen -y -f dec15a.pem > dec15a.pub

Now upload the new public key to list of keys on Amazon so that you can connect to your instances in that region using the same pem key.

We can re-create mysql users using the percona utility.

wget percona.com/get/pt-show-grants

chmod 777 pt-show-grants

./pt-show-grants

Microsoft Word has an excellent feature called Mail-Merge. If the query returns more than one record (say 4 for the sake of the example), then the resulting Word file has multiple copies of the document merged together in one file. It is possible to have Word create a seperate file for each record using this add-on.

www.gmayor.com

The 8th column of ps aux command will list the status of the process.

ps aux | awk '{if ($8 ~ "D") print $0}'

Here is a list of the various process statuses and what they mean:

D – Uninterruptible sleep (usually a critical system process, a process that cannot be killed without rebooting)
R – Running
S – Interruptible sleep (waiting for an event to complete)
T – Stopped
Z – Defunct (“zombie”) process

Here are some of the important Amazon products to use.

cloudTrail + cloudWatch + ES
Image Recognition
DMS
Route53
EC2
Redshift + ElasticCache + Spectrum
S3 + Glacier / Athena
Lambda + API Gateway + dynamoDB

www.thegeekstuff.com

openssl genrsa -out 34.195.94.88.key 1024

openssl req -new -key 34.195.94.88.key -out 34.195.94.88.csr

echo subjectAltName = IP:34.197.71.213 > extfile.cnf

openssl x509 -extfile extfile.cnf -req -days 365 -in 34.197.71.213.csr -signkey 34.197.71.213.key -out 34.197.71.213.crt

/srv/docker/gitlab/gitlab/certs

-rw-r--r-- 1 root root 749 Jan 14 11:05 34.195.94.88.crt
-rw-r--r-- 1 root root 599 Jan 14 11:05 34.195.94.88.csr
-rw-r--r-- 1 root root 887 Jan 14 11:04 34.195.94.88.key