Ryan A. Chapman ryanchapman
ryanchapman
/ print_cert_signatures.py
Last active
June 12, 2020 20:11
Print certificate signatures that can be used with certificate pinning on iOS and Android
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| #!/usr/bin/env python | |
| # | |
| # Print certificate signatures that can be used with certificate pinning on iOS and Android | |
| # | |
| # usage: cat cert_bundle.pem | ./print_cert_signatures.py | |
| # usage: openssl s_client -connect fqdn:443 -showcerts </dev/null 2>/dev/null | ~/bin/print_cert_signatures.py | |
| # | |
| # example: | |
| # $ openssl s_client -connect www.google.com:443 -showcerts </dev/null 2>/dev/null | ~/bin/print_cert_signatures.py | |
| # Certificate 1 of 2: |
ryanchapman
/ gist:c72ad14403483422b803f9cbbc8695a1
Created
August 16, 2016 17:08
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| rchapman@linux:~$ curl icanhazip.com | |
| 1.2.3.4 |
ryanchapman
/ virtualbox_ports_forwarded.sh
Last active
December 5, 2015 11:59
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| VB=/Applications/VirtualBox.app/Contents/Resources/VirtualBoxVM.app/Contents/MacOS/VBoxManage; for vm in $($VB list vms | awk '{print $1}' | tr -d '"'); do $VB showvminfo $vm 2>&1 | grep 'State:.*running' &>/dev/null || continue; perl -e 'print "=" x 80 . "\n"'; echo $vm; $VB showvminfo $vm 2>&1 | egrep '^(Name|Guest OS|UUID|Config file|Memory size|Number of CPUs):|NIC.*Rule|Name:.*Host path:'; done |
ryanchapman
/ test.c
Last active
August 29, 2015 14:13
write a string to standard output using syscall(2)
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| /* save as test.c, compile with gcc test.c -o test -m64 */ | |
| #define _GNU_SOURCE /* See feature_test_macros(7) */ | |
| #include <unistd.h> | |
| #include <sys/syscall.h> /* For SYS_xxx definitions */ | |
| void main() { | |
| const char *buf="test\n"; | |
| syscall(1, /* sys_write */ | |
| 1, /* stdout */ | |
| buf, /* buf, or string to write to stdout */ |
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| mmdd=`date | sed 's|^\(... \)\(... ..\)\( ..:..:.. ... ....\)|\2|'`; hour=`date +%H`; echo; echo -n "Number of hosts sending us nsca results: "; cat /var/log/messages | egrep 'START:.*from=' | sed 's|\(.*from=\)\(.*\..*\..*\..*\)$|\2|g' | sort -u | wc -l; echo " ATTEMPTS/MIN FAILS/MIN"; min=0; while [ $min -lt 61 ]; do min_formatted=`printf "%2.2d" $min`; echo -n "${mmdd} ${hour}:${min_formatted} "; printf "%8.8s" `cat /var/log/messages | grep 'START: nsca pid=' | grep "${mmdd} ${hour}:${min_formatted}:" | wc -l`; printf " %8.8s\n" `cat /var/log/messages | grep 'FAIL: nsca' | grep "${mmdd} ${hour}:${min_formatted}:" | wc -l`;min=$((min+1)); done |