Christian Heimes <li...@cheimes.de> added the comment:
The remote server is having intermittent issues. Sometimes all three servers behind the host are gone, sometimes they block all packages. # nmap -vv cyrus.andrew.cmu.edu Starting Nmap 7.80 ( https://nmap.org ) at 2020-06-12 20:52 CEST Warning: Hostname cyrus.andrew.cmu.edu resolves to 3 IPs. Using 128.2.157.16. Initiating Ping Scan at 20:52 Scanning cyrus.andrew.cmu.edu (128.2.157.16) [4 ports] Completed Ping Scan at 20:52, 0.13s elapsed (1 total hosts) Initiating Parallel DNS resolution of 1 host. at 20:52 Completed Parallel DNS resolution of 1 host. at 20:52, 0.12s elapsed Initiating SYN Stealth Scan at 20:52 Scanning cyrus.andrew.cmu.edu (128.2.157.16) [1000 ports] Completed SYN Stealth Scan at 20:52, 2.88s elapsed (1000 total ports) Nmap scan report for cyrus.andrew.cmu.edu (128.2.157.16) Host is up, received reset ttl 239 (0.11s latency). Other addresses for cyrus.andrew.cmu.edu (not scanned): 128.2.157.15 128.2.157.14 rDNS record for 128.2.157.16: CYRUS.ANDREW.CMU.EDU Scanned at 2020-06-12 20:52:35 CEST for 3s Not shown: 979 closed ports Reason: 979 resets PORT STATE SERVICE REASON 23/tcp filtered telnet no-response 110/tcp filtered pop3 no-response 135/tcp filtered msrpc no-response 139/tcp filtered netbios-ssn no-response 143/tcp filtered imap no-response 445/tcp filtered microsoft-ds no-response 515/tcp filtered printer no-response 631/tcp filtered ipp no-response 993/tcp filtered imaps no-response 995/tcp filtered pop3s no-response 1433/tcp filtered ms-sql-s no-response 2000/tcp filtered cisco-sccp no-response 2003/tcp filtered finger no-response 2967/tcp filtered symantec-av no-response 3389/tcp filtered ms-wbt-server no-response 5555/tcp filtered freeciv no-response 5900/tcp filtered vnc no-response 5901/tcp filtered vnc-1 no-response 5902/tcp filtered vnc-2 no-response 5903/tcp filtered vnc-3 no-response 9100/tcp filtered jetdirect no-response Read data files from: /usr/bin/../share/nmap Nmap done: 1 IP address (1 host up) scanned in 3.42 seconds Raw packets sent: 1025 (45.076KB) | Rcvd: 980 (39.200KB) # nmap -vv 128.2.157.16 128.2.157.14 128.2.157.15 Starting Nmap 7.80 ( https://nmap.org ) at 2020-06-12 20:54 CEST Initiating Ping Scan at 20:54 Scanning 3 hosts [4 ports/host] Completed Ping Scan at 20:55, 5.03s elapsed (3 total hosts) Nmap scan report for 128.2.157.16 [host down, received no-response] Nmap scan report for 128.2.157.14 [host down, received no-response] Nmap scan report for 128.2.157.15 [host down, received no-response] Read data files from: /usr/bin/../share/nmap Nmap done: 3 IP addresses (0 hosts up) scanned in 5.10 seconds Raw packets sent: 24 (912B) | Rcvd: 0 (0B) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40964> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
