I was trying to SSH into a machine from my Kali Linux VM shortly after updating packages and encountered this error immediately after authenticating: packet_write_wait: Connection to X.X.X.X port 22: Broken pipe I was using VMWare Workstation. SSH on my host was working as expected. Another VM in VirtualBox was working just fine, too. Another …

Continue reading packet_write_wait: Connection to X.X.X.X port 22: Broken pipe

I have had the honor and pleasure of interviewing for some genuinely great security teams.  Unfortunately, I am not good at the interview process. This has cost me several opportunities that I feel that I would have enjoyed. I assume other people have had these same problems. This blog post will outline the areas in …

Continue reading Job Interview Blunders

Introduction It is July 1st, 2018. Many systems and network administrators have a solid understanding of IPv4 networking and its underlying protocols, but little or no experience using IPv6. This is crazy to me, but we live in interesting times. IPv6 has been around for quite some time, but it still hasn’t been fully adopted. …

Continue reading Bypassing IPv4 Security Measures Using IPv6

I ran into a scenario where I was able to upload ASCII files, but executable files were being saved improperly. A common workaround for this is to use base64 to encode the executable, transfer the encoded data, then decode it on the recipient machine. The version of Windows I was using did not have base64 …

Continue reading Windows base64 Encoding and Decoding Using certutil

Apparently, sshuttle requires the "netstat" command to function.