holmberd

Kill user tty/pts sessions in Linux

Commands

• w: show who is logged on and what they are doing
• who: show who is logged on
• tty: show current users pseudo terminal
• ps -ft pts/1: get process id for the pseudo terminal
• pkill: signal process based on name and other attributes

pfeilbr

Slides for Re:Invent conference

• Re:Invent 2018
• Re:Invent 2017
• Re:Invent 2016
• Re:Invent 2015
• Re:Invent 2014
• Re:Invent 2013
• Re:Invent 2012

dcasati

# Use dig to find out about the k8s records
# dig +vc -p 5300 @127.0.0.1 cluser.local

# Use dig to retrieve an A Record 
# dig +vc -p 5300 @127.0.0.1 A cb-example-0000.default.svc.cluster.local

# Use dig to do a reverse lookup (-x flag)
#dig  +vc -p 5300 @127.0.0.1 -x  10.0.50.156

# Add the port forward

pydevops

• 0.1. References
• 0.2. Other cheatsheets
• 0.3. Manage multiple gcloud config configurations
  • 0.3.1. Switch gcloud context with gcloud config
• 0.4. Credentials
• 0.5. info
• 0.6. projects
• 0.7. zones & regions
• 0.8. Organization
• 0.9. billing

tombigel

How to Change Open Files Limit on OS X and macOS

This text is the section about OS X Yosemite (which also works for macOS Sierra) from https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/#mac-os-x

The last time i visited this link it was dead (403), so I cloned it here from the latest snapshot in Archive.org's Wayback Machine https://web.archive.org/web/20170523131633/https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/

Mac OS X

To check the current limits on your Mac OS X system, run:

stevenringo

Sessions

Code	Title	Duration	Link
Keynote	Andy Jassy Keynote Announcement Recap	0:01	https://www.youtube.com/watch?v=TZCxKAM2GtQ
Keynote	AWS re:Invent 2016 Keynote: Andy Jassy	2:22	https://www.youtube.com/watch?v=8RrbUyw9uSg
Keynote	AWS re:Invent 2016 Keynote: Werner Vogels	2:16	https://www.youtube.com/watch?v=ZDScBNahsL4
Keynote	[Tuesday Night Live with Jame

vkroz

Kafka frequent commands

Assuming that the following environment variables are set:

• KAFKA_HOME where Kafka is installed on local machine (e.g. /opt/kafka)
• ZK_HOSTS identifies running zookeeper ensemble, e.g. ZK_HOSTS=192.168.0.99:2181
• KAFKA_BROKERS identifies running Kafka brokers, e.g. KAFKA_BROKERS=192.168.0.99:9092

Server

Start Zookepper and Kafka servers

mgoodness

AWS Service annotations

• service.beta.kubernetes.io/aws-load-balancer-access-log-emit-interval (in minutes)
• service.beta.kubernetes.io/aws-load-balancer-access-log-enabled (true|false)
• service.beta.kubernetes.io/aws-load-balancer-access-log-s3-bucket-name
• service.beta.kubernetes.io/aws-load-balancer-access-log-s3-bucket-prefix
• service.beta.kubernetes.io/aws-load-balancer-additional-resource-tags (comma-separated list of key=value)
• service.beta.kubernetes.io/aws-load-balancer-backend-protocol (http|https|ssl|tcp)
• service.beta.kubernetes.io/aws-load-balancer-connection-draining-enabled (true|false)

ursuad

Kafka Topics

List existing topics

bin/kafka-topics.sh --zookeeper localhost:2181 --list

Describe a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic mytopic

Purge a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic mytopic --config retention.ms=1000

... wait a minute ...

htp

curl --include \
     --no-buffer \
     --header "Connection: Upgrade" \
     --header "Upgrade: websocket" \
     --header "Host: example.com:80" \
     --header "Origin: http://example.com:80" \
     --header "Sec-WebSocket-Key: SGVsbG8sIHdvcmxkIQ==" \
     --header "Sec-WebSocket-Version: 13" \
     http://example.com:80/