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Sam Kottler skottler

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skottler / keybase.md
Created March 23, 2014 10:16

Keybase proof

I hereby claim:

  • I am skottler on github.
  • I am shk (https://keybase.io/shk) on keybase.
  • I have a public key whose fingerprint is 76EE 0F0F FF19 5505 81F3 0E2F 499C 8210 826E 8956

To claim this, I am signing this object:

@skottler
skottler / sshd.md
Last active August 29, 2015 14:01

I'm gonna forgot how to fix this next time I come across it, so using this gist to document the issue. This occurs on Debian 7.5 with the following package installed from testing: openssh-server 1:6.6p1-5, which was pulled in through the ssh metapackage.

Could not load host key: /etc/ssh/ssh_host_ed25519_key

Apparently this is a bug in the debian packaging. Luckily there's a pretty great command for fixing it: ssh-keygen -A, which will generate any missing keys. If you're running with a VM make sure you've got enough available entropy to generate those aforementioned keys. If you don't want to run the creation command for all the missing keys, then you can just run this instead: /usr/bin/ssh-keygen -t ed25519 -f /etc/ssh/ssh_host_ed25519_key -N ''.

@skottler
skottler / bash_spec.rb
Last active August 29, 2015 14:07
require 'spec_helper'
describe command("env x='() { :;}; echo vulnerable' bash -c 'echo this is a test'") do
its(:exit_status) { is_expected.to eq 0 }
its(:stdout) { is_expected.not_to match(/vulnerable/) }
end
@skottler
skottler / patch-it.md
Last active August 29, 2015 14:11

Before:

samkottler@ubuntu:~$ cat /proc/meminfo
MemTotal:        2042728 kB
MemFree:          599932 kB
Buffers:           33268 kB
Cached:          1240816 kB
SwapCached:         3396 kB
Active: 1051100 kB
@skottler
skottler / block_device_trim.rb
Last active August 29, 2015 14:17
Ohai.plugin(:Trim) do
# This ohai plugin provides data about TRIM support on each underlying block
# device available on the system. Its functionality is rather simple - it
# iterates over each physical device, ignoring partitions, and then runs
# hdparm to find the drives' capabilities, finally grepping for TRIM support.
provides "block_device/trim"
depends "block_device"
collect_data(:default) do
@skottler
skottler / gist:1274484
Created October 10, 2011 02:04
server {
listen 8090;
server_name localhost;
location / {
proxy_pass localhost;
}
}
@skottler
skottler / gist:1274481
Created October 10, 2011 02:03
server {
listen 80;
server_name localhost;
location / {
proxy_pass localhost:8090;
}
}
@skottler
skottler / gist:1372224
Created November 17, 2011 02:45
Interval Since Last Panic Report: 276904 sec
Panics Since Last Report: 1
Anonymous UUID: A32457F1-519F-4B3F-83DD-FD6519CA313D
Wed Nov 16 21:43:55 2011
panic(cpu 2 caller 0xffffff80002c266d): Kernel trap at 0xffffff8000539801, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xfffffffffffffe6d, CR3: 0x000000002ffa4085, CR4: 0x00000000000606e0
RAX: 0xffffff800d08a808, RBX: 0xffffff800bca4a68, RCX: 0x0000000000000024, RDX: 0xffffff800cdf8800
RSP: 0xffffff807fb6bd50, RBP: 0xffffff807fb6bd90, RSI: 0xffffff8010193098, RDI: 0xffffff800cdf8800
R8: 0xffffff80008bdb40, R9: 0xffffff800778da10, R10: 0xfffffe800168c2a8, R11: 0x00000000001592f4
@skottler
skottler / gist:1453477
Created December 9, 2011 21:55
StartServers 50
MinSpareServers 15
MaxSpareServers 30
MaxClients 225
MaxRequestsPerChild 4000
@skottler
skottler / gist:1580620
Created January 9, 2012 02:12
74.96.178.237 - - [09/Jan/2012:02:11:46 +0000] "GET /rss.xml HTTP/1.0" 200 19192 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:9.0.1) Gecko/20100101 Firefox/9.0.1" vhost=onegsb.stanford.edu hosting_site=sfordgsb request_time=60002
201.9.222.64 - - [09/Jan/2012:02:11:48 +0000] "GET /favicon.ico HTTP/1.0" 404 63 "http://primeiro-acto.blogspot.com/2010/08/ir-ao-encontro-do-cliente.html" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7" vhost=onegsb.stanford.edu hosting_site=sfordgsb request_time=0
- - - [09/Jan/2012:02:11:58 +0000] "POST /Shibboleth.sso/SAML2/POST HTTP/1.0" 302 205 "https://idp.stanford.edu/idp/profile/SAML2/Redirect/SSO" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6 (.NET CLR 3.5.30729)" vhost=onegsb.stanford.edu hosting_site=sfordgsb request_time=28000
212.113.37.105 - - [09/Jan/2012:02:12:11 +0000] "GET /node?page=31&page0_000000E_00_000000E_00_000000E_0a_href%252525255E%252525255E%252525255E%2