tags

perl tips
Filesystem I/O Speeds Benchmarking Perl Script
PPTP to HE IPv6 Network Perl Script
Diebold FIT File Perl Script
What information is your browser giving away?
Automated Linux Backups utilizing rsync over SSH
Prepping Ubuntu Server Edition to run as a DMVPN.
A Net::Telnet::Cisco Example (Save Running Configuration)
Using Perl to grab a proccess id in Linux
cisco administration perl scripting
Configuring Cisco routers and switches with Python
A Net::Telnet::Cisco Example (Save Running Configuration)
vpn
OpenNHRP is now available via RPM
Prepping Ubuntu Server Edition to run as a DMVPN.
An Open Source Implementation of Cisco's Dynamic Multipoint VPN (DMVPN)
open source alternatives
OpenNHRP RPM Updated
OpenNHRP is now available via RPM
An Open Source Implementation of Cisco's Dynamic Multipoint VPN (DMVPN)
ubuntu se
Prepping Ubuntu Server Edition to run as a DMVPN.
article
Why Open Source helps to build competence in IT
security
A New Approach to Defending Against DDoS Attacks
Think that you have a compromised Red Hat based system?
Linux Encrypted Filesystems
ASA Security Contexts
Cisco Auto Secure
IOS Local Password Security Features
NSA Security Configuration Guides
osi model
OSI and TCP/IP Layer Models
tcp/ip model
OSI and TCP/IP Layer Models
ccna study notes
IPv4 Subnetting Made Easy
Virtual LAN's and Trunks
VLAN Trunking Protocol
OSI and TCP/IP Layer Models
virtualization
Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab
IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation
Making a VM boot at VM host boot in KVM
Virtualization Notes, Best Practices, and Gotcha's
hyper-v
Virtualization Notes, Best Practices, and Gotcha's
vmware
Virtualization Notes, Best Practices, and Gotcha's
net nuetrality
A New Approach to Defending Against DDoS Attacks
Good bye Internet
The United States vs Personal Freedoms and Liberties
Network Nuetrality
linux
Dockerizing IOS-XRv
Cisco VIRL - Bare Metal Install Tips and Lessons Learned
Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab
Quick intro to Puppet
Performing a full system restore after a Linux server re-kick
SELinux For Mere Mortals
Filesystem I/O Speeds Benchmarking Perl Script
Linux File Server for Apple Time Machine Backups
Rackspace Cloud Servers and Networks with Open vSwitch and VXLANbetween Data Centers
Playing with Openvswitch.
SELinux - Listing Available Contexts
RHCE Series: SMTP
RHCE Series: SSH and NTP
RHCE Series: HTTP
RHCE Series: FTP
RHCE Series: DNS
Making NAT work with the default Red Hat iptables ruleset
RHCE Series: Configure the service to start when the system is booted.
RHCE Series: Configure SELinux to support the service.
RHCE Series: Remote Logging
RHCE Series: Produce and deliver reports on system utilization
RHCE Series: Build a simple RPM that packages a single file.
RHCSA Class Notes
RHCE Series: Configure a system as an iSCSI initiator that persistently mounts an iSCSI target.
RHCE Series: Use /proc/sys and sysctl to modify and set kernel runtime parameters.
RHCE Series: Use iptables to implement packet filtering and configure network address translation (NAT): Part 2
Making a VM boot at VM host boot in KVM
Think that you have a compromised Red Hat based system?
RHCE Series: Use iptables to implement packet filtering and configure network address translation (NAT): Part 1
PPTP to HE IPv6 Network Perl Script
RHCE Series: Route IP traffic and create static routes
OpenNHRP is now available via RPM
Using a Proxy Server to access the IPv6 Internet?
Logical Volume Management in Linux
Linux Encrypted Filesystems
Automated Linux Backups utilizing rsync over SSH
system administration
Working with Cisco Routers and Switches with Python
Managing Cisco Routers / Switches with Python, Take 2
Quick one-liner to change all databases tables to InnoDB in MySQL.
RHCE Series: Produce and deliver reports on system utilization
OpenNHRP is now available via RPM
Using a Proxy Server to access the IPv6 Internet?
Logical Volume Management in Linux
Automated Linux Backups utilizing rsync over SSH
online privacy
Google Chromecast and scanning for WiFi Networks
Backdoor in the openBSD IPSEC Stack?
What information is your browser giving away?
routing protocols
Mental Note: Tracking L3 Glean Attacks
RHCE Series: Route IP traffic and create static routes
OSPF Notes and Gotchas
ospf
OSPF Area Types and LSA's
OSPF Notes and Gotchas
igp's
OSPF Notes and Gotchas
lan switching
Layer 3 LAN Switching
LAN Switching Layer 3 Redundancy Protocols
Virtual LAN's and Trunks
VLAN Trunking Protocol
ccnp study notes
Layer 3 LAN Switching
LAN Switching Layer 3 Redundancy Protocols
Virtual LAN's and Trunks
VLAN Trunking Protocol
vtp
VLAN Trunking Protocol
innovative
IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation
I'm going to place these here...
Using Bittorrent to Distribute Software Updates?
engineering feats
Using Bittorrent to Distribute Software Updates?
diebold
Diebold FIT File Perl Script
vlan
I'm going to place these here...
Virtual LAN's and Trunks
vlan trunking
Virtual LAN's and Trunks
glbp
LAN Switching Layer 3 Redundancy Protocols
high availability
LAN Switching Layer 3 Redundancy Protocols
hsrp
LAN Switching Layer 3 Redundancy Protocols
layer 3 switching
Mental Note: Tracking L3 Glean Attacks
Layer 3 LAN Switching
LAN Switching Layer 3 Redundancy Protocols
vrrp
LAN Switching Layer 3 Redundancy Protocols
misc.
Cisco VIRL - Bare Metal Install Tips and Lessons Learned
Cisco VIRL Status? Digital Paper Weight
It's been a while...
liberty
Good bye Internet
History Repeats itself?
The United States vs Personal Freedoms and Liberties
censorship
Good bye Internet
History Repeats itself?
The United States vs Personal Freedoms and Liberties
ipsec
Backdoor in the openBSD IPSEC Stack?
ios
Using Ansible to PUSH Cisco IOS Configurations
Mental Note: Tracking L3 Glean Attacks
Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab
Managing Cisco Routers / Switches with Python, Take 2
Configuring Cisco routers and switches with Python
Cisco Zone Based Firewall and UDP based Traceroute
Cisco Auto Secure
IOS Local Password Security Features
ios security
Cisco Zone Based Firewall and UDP based Traceroute
Cisco Auto Secure
IOS Local Password Security Features
cisco firewalls
Cisco Zone Based Firewall and UDP based Traceroute
ASA Security Contexts
filesystems
Rackspace Performance vs Standard Cloud Server Disk I/O
Filesystem I/O Speeds Benchmarking Perl Script
Logical Volume Management in Linux
Linux Encrypted Filesystems
encryption
Linux Unified Key Setup
Linux Encrypted Filesystems
lvm
RHCSA Class Notes
Logical Volume Management in Linux
proxy
Using a Proxy Server to access the IPv6 Internet?
squid
Using a Proxy Server to access the IPv6 Internet?
dmvpn
DMVPN with VRF's for the Internet interfaces and BGP
OpenNHRP is now available via RPM
opennhrp
OpenNHRP RPM Updated
RHCE Series: Build a simple RPM that packages a single file.
OpenNHRP is now available via RPM
rpm
RHCE Series: Build a simple RPM that packages a single file.
Think that you have a compromised Red Hat based system?
OpenNHRP is now available via RPM
rhce study notes
SELinux - Listing Available Contexts
RHCE Series: SMTP
RHCE Series: SSH and NTP
RHCE Series: HTTP
RHCE Series: FTP
RHCE Series: DNS
RHCE Series: Configure the service to start when the system is booted.
RHCE Series: Configure SELinux to support the service.
RHCE Series: Remote Logging
RHCE Series: Produce and deliver reports on system utilization
RHCE Series: Build a simple RPM that packages a single file.
RHCE Series: Configure a system as an iSCSI initiator that persistently mounts an iSCSI target.
RHCE Series: Use /proc/sys and sysctl to modify and set kernel runtime parameters.
RHCE Series: Use iptables to implement packet filtering and configure network address translation (NAT): Part 2
RHCE Series: Use iptables to implement packet filtering and configure network address translation (NAT): Part 1
RHCE Series: Route IP traffic and create static routes
RHCE Exam Objectives
subnetting
IPv6 Subnetting
IPv4 Subnetting Made Easy
IPv6 Subnetting
ipv6
The Nerdiest IPv6 related domain name on the Internet
IPv6 Subnetting
PPTP to HE IPv6 Network Perl Script
IPv6 Subnetting
iptables
Making NAT work with the default Red Hat iptables ruleset
RHCE Series: Use iptables to implement packet filtering and configure network address translation (NAT): Part 2
RHCE Series: Use iptables to implement packet filtering and configure network address translation (NAT): Part 1
kvm
Dockerizing IOS-XRv
Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab
Making a VM boot at VM host boot in KVM
kernel tuning
RHCSA Class Notes
RHCE Series: Use /proc/sys and sysctl to modify and set kernel runtime parameters.
iscsi
RHCE Series: Configure a system as an iSCSI initiator that persistently mounts an iSCSI target.
luks
Linux Unified Key Setup
RHCSA Class Notes
rhcsa study notes
RHCSA Class Notes
selinux
SELinux For Mere Mortals
SELinux - Listing Available Contexts
RHCE Series: Configure SELinux to support the service.
RHCSA Class Notes
apache
RHCE Series: HTTP
RHCSA Class Notes
nfs
RHCSA Class Notes
cron
RHCSA Class Notes
autofs
RHCSA Class Notes
upstart
RHCSA Class Notes
logging
RHCE Series: Remote Logging
remote logging
RHCE Series: Remote Logging
f5
Free Web-Based F5 Training
training
IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation
Free Web-Based F5 Training
firewall
Making NAT work with the default Red Hat iptables ruleset
nat
Making NAT work with the default Red Hat iptables ruleset
dns
Dynamic DNS Updates via the Rackspace Cloud DNS
RHCE Series: DNS
bind
Dynamic DNS Updates via the Rackspace Cloud DNS
RHCE Series: DNS
vsftpd
RHCE Series: FTP
ftp
RHCE Series: FTP
http
RHCE Series: HTTP
ntp
RHCE Series: SSH and NTP
openssh
RHCE Series: SSH and NTP
ssh
RHCE Series: SSH and NTP
sendmail
RHCE Series: SMTP
smtp
RHCE Series: SMTP
postfix
RHCE Series: SMTP
ipv4
IPv4 Subnetting Made Easy
software defined networking
Dockerizing IOS-XRv
pyMultiChange - SSH Script Update
Updated pyRouterLib and pyMultiChange
Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab
Rackspace Cloud Servers and Networks with Open vSwitch and VXLANbetween Data Centers
Playing with Openvswitch.
sdn
Dockerizing IOS-XRv
I'm going to place these here...
SDN Goodness
Rackspace Cloud Servers and Networks with Open vSwitch and VXLANbetween Data Centers
Playing with Openvswitch.
openvswitch
Dockerizing IOS-XRv
Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab
I'm going to place these here...
SDN Goodness
Rackspace Cloud Servers and Networks with Open vSwitch and VXLANbetween Data Centers
Playing with Openvswitch.
vxlan
I'm going to place these here...
Rackspace Cloud Servers and Networks with Open vSwitch and VXLANbetween Data Centers
openstack
I'm going to place these here...
SDN Goodness
Rackspace Private Cloud Edition - Compute Setup
private cloud edition
Rackspace Private Cloud Edition - Compute Setup
rackspace
Troubleshooting Internet Connectivity
Dynamic DNS Updates via the Rackspace Cloud DNS
Rackspace Performance vs Standard Cloud Server Disk I/O
Rackspace Private Cloud Edition - Compute Setup
netatalk
Linux File Server for Apple Time Machine Backups
afp
Linux File Server for Apple Time Machine Backups
apple timemachine
Linux File Server for Apple Time Machine Backups
bash tips
Performing a full system restore after a Linux server re-kick
Bash Shell Enumerator - Command Not Found
Bash - Random Password Changer
Quick one-liner to change all databases tables to InnoDB in MySQL.
mysql
IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation
Quick one-liner to change all databases tables to InnoDB in MySQL.
pranks
Bash Shell Enumerator - Command Not Found
Bash - Random Password Changer
python tips
Network Lifecycle Management with Hierarchical Configuration
Multi Change and Netlib Updates
Kicking the tires on the new Ansible Network Modules, Part 2
Kicking the tires with the new Ansible Network Modules
Using Ansible to PUSH Cisco IOS Configurations
pyMultiChange rewrite and Netlib
pyMultiChange and pyRouterLib Updates
pyMultiChange - SSH Script Update
Updated pyRouterLib and pyMultiChange
Python with Multiple Threads
Working with Cisco Routers and Switches with Python
Updating my Python Scripts to access Cisco Devices
Dynamic DNS Updates via the Rackspace Cloud DNS
TelnetCisco.py - A Reusable Module for Accessing Cisco Devices with Python
Managing Cisco Routers / Switches with Python, Take 2
Configuring Cisco routers and switches with Python
Learning Python
cisco zone based firewall
Cisco Zone Based Firewall and UDP based Traceroute
mpls
MPLS Control and Data Plane Cheat Sheet
Introduction to MPLS
nicira
SDN Goodness
nvp
I'm going to place these here...
SDN Goodness
backup and recovery
Performing a full system restore after a Linux server re-kick
miscellaneous hacking
A New Approach to Defending Against DDoS Attacks
Dockerizing IOS-XRv
Cisco VIRL - Bare Metal Install Tips and Lessons Learned
Cisco VIRL Status? Digital Paper Weight
Working with Cisco Routers and Switches with Python
IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation
Google Chromecast and scanning for WiFi Networks
google
Google Chromecast and scanning for WiFi Networks
wireshark
Google Chromecast and scanning for WiFi Networks
network sniffing
Google Chromecast and scanning for WiFi Networks
bgp
NANOG 66
DMVPN with VRF's for the Internet interfaces and BGP
BGP Goodness and Links
cisco administration python scripting
Network Lifecycle Management with Hierarchical Configuration
Multi Change and Netlib Updates
Using Ansible to PUSH Cisco IOS Configurations
pyMultiChange rewrite and Netlib
pyMultiChange and pyRouterLib Updates
pyMultiChange - SSH Script Update
Updated pyRouterLib and pyMultiChange
Working with Cisco Routers and Switches with Python
Updating my Python Scripts to access Cisco Devices
TelnetCisco.py - A Reusable Module for Accessing Cisco Devices with Python
Managing Cisco Routers / Switches with Python, Take 2
Configuring Cisco routers and switches with Python
vrf
DMVPN with VRF's for the Internet interfaces and BGP
puppet
Quick intro to Puppet
ccnp sp study notes
MPLS Control and Data Plane Cheat Sheet
Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab
OSPF Area Types and LSA's
IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation
CCNP - Service Provider - SPROUTE
ios-xe
Using Ansible to PUSH Cisco IOS Configurations
MPLS Control and Data Plane Cheat Sheet
Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab
IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation
php
IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation
ios-xr
Using Ansible to PUSH Cisco IOS Configurations
Dockerizing IOS-XRv
MPLS Control and Data Plane Cheat Sheet
Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab
IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation
network security
A New Approach to Defending Against DDoS Attacks
Mental Note: Tracking L3 Glean Attacks
l3 glean
Mental Note: Tracking L3 Glean Attacks
cisco
Mental Note: Tracking L3 Glean Attacks
cisco virl
Dockerizing IOS-XRv
Cisco VIRL - Bare Metal Install Tips and Lessons Learned
Cisco VIRL Status? Digital Paper Weight
troubleshooting
Troubleshooting Internet Connectivity
network connectivity
A New Approach to Defending Against DDoS Attacks
Troubleshooting Internet Connectivity
nfv
Dockerizing IOS-XRv
docker
Dockerizing IOS-XRv
network programmability
Network Lifecycle Management with Hierarchical Configuration
Multi Change and Netlib Updates
Kicking the tires on the new Ansible Network Modules, Part 2
Kicking the tires with the new Ansible Network Modules
NANOG 66
Using Ansible to PUSH Cisco IOS Configurations
devops
Network Lifecycle Management with Hierarchical Configuration
Multi Change and Netlib Updates
Kicking the tires on the new Ansible Network Modules, Part 2
Kicking the tires with the new Ansible Network Modules
NANOG 66
Using Ansible to update your Home Dynamic DNS via Rackspace Cloud DNS
Using Ansible to PUSH Cisco IOS Configurations
network devops
Network Lifecycle Management with Hierarchical Configuration
Multi Change and Netlib Updates
Kicking the tires on the new Ansible Network Modules, Part 2
Kicking the tires with the new Ansible Network Modules
NANOG 66
Using Ansible to PUSH Cisco IOS Configurations
ansible
Kicking the tires on the new Ansible Network Modules, Part 2
Kicking the tires with the new Ansible Network Modules
Using Ansible to update your Home Dynamic DNS via Rackspace Cloud DNS
Using Ansible to PUSH Cisco IOS Configurations
data center
NANOG 66
nanog
NANOG 66
serial
Using a serial console on Mac OS X
console
Using a serial console on Mac OS X
mac os x
Using a serial console on Mac OS X
ddos
A New Approach to Defending Against DDoS Attacks
july4
Happy Independence Day!
july 4
Happy Independence Day!
independence day
Happy Independence Day!
expedition
2018 Diving Highlights
Expedition Packing
sibinacocha
Sibinacocha Aerial View
Expedition Packing
scuba diving
2018 Diving Highlights
Winter 2017 - Mexico Cave Diving
Blue Lagoon, October 2017
Spring Lake, September 2017
Expedition Packing
peru
A Tale of Incan Apu's and Climate Change
Expedition Packing
travel
A Tale of Incan Apu's and Climate Change
Expedition Packing
peru 2017
Sibinacocha Aerial View
Expedition Packing
photography
Winter 2017 - Mexico Cave Diving
Sibinacocha Aerial View
Blue Lagoon, October 2017
Spring Lake, September 2017
underwater photography
Winter 2017 - Mexico Cave Diving
Blue Lagoon, October 2017
Spring Lake, September 2017
spring lake
2018 Diving Highlights
Spring Lake, September 2017
blue lagoon
Blue Lagoon, October 2017
gue
Winter 2017 - Mexico Cave Diving
Blue Lagoon, October 2017
aerial photography
Sibinacocha Aerial View
turkeyops
#TurkeyOps
thanksgiving
#TurkeyOps
cave diving
2018 Diving Highlights
Winter 2017 - Mexico Cave Diving
mexico 2017
Winter 2017 - Mexico Cave Diving
august spring
2018 Diving Highlights
exploration
2018 Diving Highlights
rebreather diving
2018 Diving Highlights
technical diving
2018 Diving Highlights
goodenough spring
2018 Diving Highlights
rock lake
2018 Diving Highlights
el tule
2018 Diving Highlights
trail running
My First Ultra Marathon
Group Trail Run at Colorado Bend State Park
colorado bend state park
My First Ultra Marathon
Group Trail Run at Colorado Bend State Park
running
My First Ultra Marathon
Group Trail Run at Colorado Bend State Park
tejas trails
My First Ultra Marathon
ultra running
My First Ultra Marathon
tinajas 50k
My First Ultra Marathon
apu
A Tale of Incan Apu's and Climate Change
pumasillo
A Tale of Incan Apu's and Climate Change
peru 2019
A Tale of Incan Apu's and Climate Change
peruvian andes
A Tale of Incan Apu's and Climate Change
choquequirao
A Tale of Incan Apu's and Climate Change
research
Archaeology Career Prospects
archaeology
Archaeology Career Prospects