I am Dave, a Ph.D. student in the department of Computer & Information Science & Engineering (CISE) at the University of Florida. I am a founding member of FICS (Florida Institute for Cybersecurity) Research. My research involves system infrastructure, security and storage. I am interested in Linux kernel hacking, compilers and machine learning stuffs. I also play guitars though not professionally when I am tired of coding:)
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Tag Archives: netstat
In my old post (https://davejingtian.org/2015/02/17/retrieve-pid-from-the-packet-in-unix-domain-socket-a-complete-use-case-for-recvmsgsendmsg/), we talked about how to retrieve the peer PID from Unix domain socket using struct ucred. A more smart way to do this is using getsockopt() syscall with option SO_PEERCRED directly. As you expected (or … Continue reading
Recently encountered a bind() error 0x63 – cannot assign requested address. After some effort on debugging, I list 2 possibilities here for reference when handling such this error code from bind(). Generally, if it is related with bad socket close/cleanup, … Continue reading