Dennis Van Der Made Email & Phone Number

Experienced troubleshooter, security and problem analyzer motivated by understanding and resolving issues, typically found at the 'sharp end' of subjects others tend to shy away from. Specializing in analyzing network data as an important first step in understanding reported problems, followed up by reproduction testing. Next to technical support share information and knowledge by creating detailed documentation and training material. Recently discovered tryhackme and finished the 'Jr Penetration Tester' learning trackWorking experience with (including, but not limited to);-Troubleshooting and analyzing wired and wireless network problems, including network protocols like DHCP, DNS, SMB/DFS, TCP performance, IEEE802.1x, Encryption (TLS).-Network capture/analyzing software including Wireshark, tshark, pktmon-Network equipment from various vendors, including Cisco, Ubiquiti, Juniper, Extreme Networks, HPE, Alcatel-Lucent, Huawei, Mikrotik, Draytek, Allied Telesis.-OS including Microsoft server and client OS, Linux OS (Kali, CentOS, Ubuntu), VMware ESXi, Proxmox VE-Network scanning software including Nessus, Qualys, OpenVAS, nmap-Various others including Riverbed Steelhead WAN accelerators, Security Onion IDS, Arkime, PacketFence.Extensive experience with creating and maintaining test environment with near zero budget-Configuring and upgrading green-line server equipment from vendors like Sun, IBM and Dell.-Learning how to use open-source software.

Listed skills include Prince2, Wireshark Network Analysis, and Technical Support.