Theodore Baschak
Bio
Theo is a network engineer with experience operating core internet technologies like HTTP, HTTPS and DNS. He has extensive experience running service provider networks with OSPF, MPLS, and BGP.
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Articles
- exabgp 4.x, anycast, and healthchecks
- nginx ISP fence
- OpenBSD 6.6 BGP Looking Glass
- MPLS Labels Explained
- Troubleshooting a Duplicate OSPF Router ID
- Centrally Managed WiFi with MikroTik CAPsMAN
- Inadvertent Transit
- Fastnetmon on Ubuntu 18.04
- MRT Dumps with GoBGP
- The Road to MPLS
- AS112 and BIRD
- AS112 and Exabgp
- RabbitMQ - PSaaS
- OSX Built-in TFTP Server
- Studying Canadian BGP
- HA Recursive DNS with dnsdist and exabgp
- fpinglog
- MikroTik, VRRP, and IPv6
- BGP BLACKHOLE Community
- Large BGP Communities
- HA Authoritative DNS w/ dnsdist
- dnsdist with pdns recursors
- A BGP Slash Command
- ESXi 6up2
- Load Balancing DNS with dnsdist
- AS395089
- IXP Peering Lan Hijacks
- BGP and Game Performance
- Filtering with BGP Communities
- HTML Email with Nagios
- How I Use Nagios
- MikroTik and Hairpin NAT
- ipquail-go
- Monitoring Onions
- Nagios and IPv6
- 4 ASNs Disappear in Atomic Aggregate
- Running Smokeping on Jessie
- Nagios Logs, Handy One-Liner
- Working with ARINs Route Registry
- Removing Stubborn Trash Items
- SSH Pubkeys with Cisco IOS 15
- Latency and Effects on TCP Performance
- virtio NIC on OpenBSD under KVM
- Using ULA and NAT66
- ASN Growth in Manitoba
- Sleep Talking
- Does Everything Still Work?
- MikroTik SNMP Oddity
- SaltStack, CouchDB, and Nagios
- Observium November Release
- Phased Service Moves
- Service Status via SaltStack 2014.7 with Nagios
- New and Removed ASNs
- Troubleshooting ICMPv6 with tcpdump
- Internet Connection Sharing
- SSLv3 Disabled
- Firewall Log Stats
- CVE-2014-6271 - ShellShock
- Strange SNMP SetRequest Traffic
- IP Quail API
- ARIN on the Road
- Fully IPv6 Enabled
- Deploying a Host-Specific Fail2Ban Config with SaltStack
- Major Internet Issues Today
- Unshortening with cURL
- BGP Hijacking In News Again
- Deploying Fail2Ban using SaltStack
- Well Executed Network Upgrades
- Deploying a Nameserver at DigitalOcean in 2 minutes
- Brocade ICX Basics
- Debian Package Caching
- ipquail now curl friendly
- Anycast Administration with SaltStack
- ASCII Network Diagrams
- SaltStack Automation
- Manually Patching ESXi (5.5)
- pinglog
- check-soa
- VM Moves
- GeoDNS
- Raspberry Pi DNS/DHCP Server
- OpenBSD 5.5 BGP Looking Glass
- Atom.io
- Leaking Routes
- subcalc
- exabgp: first lab
- Selling IPv6 to Management
- IPv6 Task Force
- My IPv6 Services
- 1f j00 R R34d1N 7h12 m3m0ry j00 R pWN3D
- Learning Python: Part 2
- Observium 0.14.4
- AS4761 April 2 2014 Prefix Origination Event
- Learning Python: Part 1
- IPAM: NIPAP
- XKCD Passwords
- iPerf UDP
- goto fail
- IP Quail
- UPS SNMP Management
- SSL Ciphers
- First Brocade CLI Experiences
- RFC2142: Role Email Accounts
- Enjoying HTML5 over the Holidays
- 2014: IPv6 and HTML5
- RFC3021: 31-Bit Prefixes on PtP Links
- I'm doing AnyCast!
- Highly-Available, Redundant Internet Through BGP
- BGP 101: Failover by Splitting Advertisements
- Where Old Code Goes....
- "My Traffic Is Not Reaching The Destination"
- Starting an IXP
- IPv6 Implementation Experiences
- Implementing BCP38
- OSPF and IPv6
- Building an OpenBSD BGP Looking Glass
- Observium, A Worthy Adversary!
- SSL CLI Troubleshooting
- An MX Record, Finally!
- IPAM: IP Address Management
- Which Sites ARE IPv6 Enabled?
- Enabling IPv6 on Cisco 3560/3750
- NetInstalling OpenBSD on sparc/sparc64