• Wamp not responding to TCP SYN on port 80

    From Chip Bourne@21:1/5 to All on Mon Jun 26 11:57:21 2017
    I have Wamp 3.0.6 on Windows 10 (64-bit)
    Apache/2.4.23 (Win64) PHP/5.6.25 - Port defined for Apache: 80

    I am not getting ACKs to TCP Syn requests on port 80, even on my LAN. My Wamp is completely green light. I can browse to my localhost/www pages.
    I have collected a PCAP
    ------
    LAN PCAP
    1748 46.912379 192.168.1.101 192.168.1.129 TCP 66 63536 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=256 SACK_PERM=1
    1749 47.164434 192.168.1.101 192.168.1.129 TCP 66 63537 → 80 [SYN] Seq=0 Win=8192 Len=0
    MSS=1260 WS=256 SACK_PERM=1
    1851 49.937856 192.168.1.101 192.168.1.129 TCP 66 [TCP Retransmission] 63536 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=256 SACK_PERM=1
    1852 50.241287 192.168.1.101 192.168.1.129 TCP 66 [TCP Retransmission] 63537 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=256 SACK_PERM=1
    ----
    WAN PCAP
    8149 82.895885 63.149.188.15 192.168.1.129 TCP 66 61357 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1380 WS=256 SACK_PERM=1
    8334 85.891499 63.149.188.15 192.168.1.129 TCP 66 [TCP Retransmission] 61357 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1380 WS=256 SACK_PERM=1
    8638 91.888877 63.149.188.15 192.168.1.129 TCP 62 [TCP Retransmission] 61357 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1380 SACK_PERM=1
    -----
    My destination of my WAMP is 192.168.1.129

    My httpd apache is PID 4996 and it is indeed listening.
    $ netstat -ano | grep 4996
    TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4996
    TCP [::]:80 [::]:0 LISTENING 4996

    What could be my next steps? I have an out-of-the-box windows 10 distro on a brand new server -- I have not installed any additional ACL or malware software.

    Any direction would be much appreciated.
    Chip Bourne
    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chip Bourne@21:1/5 to Chip Bourne on Mon Jun 26 15:48:29 2017
    On Monday, June 26, 2017 at 1:57:22 PM UTC-5, Chip Bourne wrote:
    I have Wamp 3.0.6 on Windows 10 (64-bit)
    Apache/2.4.23 (Win64) PHP/5.6.25 - Port defined for Apache: 80

    I am not getting ACKs to TCP Syn requests on port 80, even on my LAN. My Wamp is completely green light. I can browse to my localhost/www pages.
    I have collected a PCAP
    ------
    LAN PCAP
    1748 46.912379 192.168.1.101 192.168.1.129 TCP 66 63536 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=256 SACK_PERM=1
    1749 47.164434 192.168.1.101 192.168.1.129 TCP 66 63537 → 80 [SYN] Seq=0 Win=8192 Len=0
    MSS=1260 WS=256 SACK_PERM=1
    1851 49.937856 192.168.1.101 192.168.1.129 TCP 66 [TCP Retransmission] 63536 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=256 SACK_PERM=1
    1852 50.241287 192.168.1.101 192.168.1.129 TCP 66 [TCP Retransmission] 63537 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=256 SACK_PERM=1
    ----
    WAN PCAP
    8149 82.895885 63.149.188.15 192.168.1.129 TCP 66 61357 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1380 WS=256 SACK_PERM=1
    8334 85.891499 63.149.188.15 192.168.1.129 TCP 66 [TCP Retransmission] 61357 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1380 WS=256 SACK_PERM=1
    8638 91.888877 63.149.188.15 192.168.1.129 TCP 62 [TCP Retransmission] 61357 → 80 [SYN] Seq=0 Win=8192 Len=0 MSS=1380 SACK_PERM=1
    -----
    My destination of my WAMP is 192.168.1.129

    My httpd apache is PID 4996 and it is indeed listening.
    $ netstat -ano | grep 4996
    TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4996
    TCP [::]:80 [::]:0 LISTENING 4996

    What could be my next steps? I have an out-of-the-box windows 10 distro on a brand new server -- I have not installed any additional ACL or malware software.

    Any direction would be much appreciated.
    Chip Bourne

    Figured it out. Shame unto me. Windows firewall settings.
    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)