tiran

$ mkdir a
$ touch a/__init__.py
$ touch a/b.py

$ python2
Python 2.7.13 (default, Sep  5 2017, 08:53:59) 
[GCC 7.1.1 20170622 (Red Hat 7.1.1-3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import a
>>> a

tiran

OpenSSL / LibreSSL versions in Linux and BSD distributions

• Source: https://distrowatch.com/
• Author: Christian Heimes
• Created: 2017-09-15

Major distributions

• alpine 2.7.8 (openssl 1.0.1g)
• alpine 3.2.2 (openssl 1.0.2d)
• alpine 3.6.2 (libressl 2.5.4)

tiran

# mpypy in Fedora 26 is currently broken, https://bugzilla.redhat.com/show_bug.cgi?id=1479697
# sudo dnf install -y python3-mypy
python3 -m venv --system-site-packages /tmp/mypy 
/tmp/mypy/bin/pip install --upgrade --force mypy

cd /path/to/freeipa
sudo dnf builddep -y --spec ./freeipa.spec.in
./autogen.sh
make

tiran

import sys
import types


class cachedproperty(object):
    __slots__ = ('fget', 'name', '__doc__')

    def __init__(self, fget, doc=None):
        self.fget = fget
        self.name = fget.__name__  # python < 3.6

tiran

$ ipa dnsrecord-add ipa.example. götter --a-rec=192.168.121.250 --a-create-reverse
  Record name: götter
  A record: 192.168.121.250

$ host götter.ipa.example
xn--gtter-jua.ipa.example has address 192.168.121.250
$ host 192.168.121.250
250.121.168.192.in-addr.arpa domain name pointer xn--gtter-jua.ipa.example.

$ dig götter.ipa.example

tiran

Message from syslogd@***** at Mar 31 11:11:20 ...
 kernel:mce: [Hardware Error]: CPU 1: Machine Check: 0 Bank 128: 00000000880003c3

Message from syslogd@***** at Mar 31 11:11:20 ...
 kernel:mce: [Hardware Error]: TSC 1a25bc4d0640 

Message from syslogd@***** at Mar 31 11:11:20 ...
 kernel:mce: [Hardware Error]: PROCESSOR 0:306c3 TIME 1490951480 SOCKET 0 APIC 1 microcode 20

Message from syslogd@***** at Mar 31 11:11:20 ...

tiran

>>> import pprint, socket, ssl
>>> ctx = ssl.create_default_context()
>>> conn = socket.create_connection(('no-subject.badssl.com', 443))
>>> sconn = ctx.wrap_socket(conn, server_hostname='no-subject.badssl.com')
>>> pprint.pprint(sconn.getpeercert())
{'OCSP': (u'http://ocsp.comodoca.com',),
 'caIssuers': (u'http://crt.comodoca.com/UbiquiTLSDVRSAServerCA.crt',),
 'issuer': ((('countryName', u'GB'),),
            (('stateOrProvinceName', u'Greater Manchester'),),
            (('localityName', u'Salford'),),

tiran

class CipherSuite(IntEnum):
    """TLS cipher suites

    Source: https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml

    Ignored:
      export ciphers
      key agreement: NULL, SRP_SHA, KRB5, PSK, PSK DHE
      auth: anon, NULL, PSK, DSS
      encryption: NULL, IDEA, ARIA

tiran

#!/usr/bin/env python3
from __future__ import print_function
import os
import time
import sys

if sys.version_info.major >= 3:
    timer = time.perf_counter
else:
    timer = time.time

tiran

org.wikimedia.ssh-pkcs11-agent.plist -> ~/Library/LaunchAgents
OPENSC_LIBS=/usr/local/Cellar/opensc/0.15.0/lib
ssh-add -s $OPENSC_LIBS/opensc-pkcs11.so