這篇文章主要介紹了怎么測試服務器端口通不通,具有一定借鑒價值,感興趣的朋友可以參考下,希望大家閱讀完這篇文章之后大有收獲,下面讓小編帶著大家一起了解一下。
創新互聯科技有限公司專業互聯網基礎服務商,為您提供四川電信科技城機房,高防服務器租用,成都IDC機房托管,成都主機托管等互聯網服務。一般情況下使用"telnet ip port"判斷端口通不通,其實測試方法不止這一種,還有很多種方法,下面小編給大家分享了幾種方法,具體內容請往下看:
準備環境
啟動一個web服務器,提供端口.
[wyq@localhost ~]$ python -m SimpleHTTPServer 8080 Serving HTTP on 0.0.0.0 port 8080 ...
用其它web服務器提供端口也一樣,由于python比較方便,這里就用它
1、使用telnet判斷
telnet是windows標準服務,可以直接用;如果是linux機器,需要安裝telnet.
用法: telnet ip port
1)先用telnet連接不存在的端口
[root@localhost ~]# telnet 10.0.250.3 80 Trying 10.0.250.3... telnet: connect to address 10.0.250.3: Connection refused #直接提示連接被拒絕
2)再連接存在的端口
[root@localhost ~]# telnet localhost 22 Trying ::1... Connected to localhost. #看到Connected就連接成功了 Escape character is '^]'. SSH-2.0-OpenSSH_5.3 a Protocol mismatch. Connection closed by foreign host.
2、使用ssh判斷
ssh是linux的標準配置并且最常用,可以用來判斷端口嗎?
用法: ssh -v -p port username@ip
-v 調試模式(會打印日志).
-p 指定端口
username可以隨意
1)連接不存在端口
[root@localhost ~]# ssh 10.0.250.3 -p 80 ssh: connect to host 10.0.250.3 port 80: Connection refused [root@localhost ~]# ssh 10.0.250.3 -p 80 -v OpenSSH_5.3p1, OpenSSL 1.0.1e-fips 11 Feb 2013 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to 10.0.250.3 [10.0.250.3] port 80. debug1: connect to address 10.0.250.3 port 80: Connection refused ssh: connect to host 10.0.250.3 port 80: Connection refused
2)連接存在的端口
[root@localhost ~]# ssh ... -p a ^] ^C [root@localhost ~]# ssh ... -p -v OpenSSH_.p, OpenSSL ..e-fips Feb debug: Reading configuration data /etc/ssh/ssh_config debug: Applying options for * debug: Connecting to ... [...] port . debug: Connection established. debug: permanently_set_uid: / debug: identity file /root/.ssh/identity type - debug: identity file /root/.ssh/identity-cert type - debug: identity file /root/.ssh/id_rsa type - debug: identity file /root/.ssh/id_rsa-cert type - debug: identity file /root/.ssh/id_dsa type - debug: identity file /root/.ssh/id_dsa-cert type - a ^C
不用-v選項也可以咯
3、使用wget判斷
wget是linux下的下載工具,需要先安裝.
用法: wget ip:port
1)連接不存在的端口
[root@localhost ~]# wget ...: ---- ::-- http://.../ Connecting to ...:... failed: Connection refused.
2)連接存在的端口
[root@localhost ~]# wget ...: ---- ::-- http://...:/ Connecting to ...:... connected. HTTP request sent, awaiting response...
4、使用端口掃描工具
[root@localhost ~]# nmap ... -p Starting Nmap . ( http://nmap.org ) at -- : CST Nmap scan report for ... Host is up (.s latency). PORT STATE SERVICE /tcp closed http MAC Address: B:A::CF:FD:D (Unknown) Nmap done: IP address ( host up) scanned in . seconds [root@localhost ~]# nmap ... -p Starting Nmap . ( http://nmap.org ) at -- : CST Nmap scan report for ... Host is up (.s latency). PORT STATE SERVICE /tcp open http-proxy MAC Address: B:A::CF:FD:D (Unknown) Nmap done: IP address ( host up) scanned in . seconds [root@localhost ~]# nmap ... Starting Nmap . ( http://nmap.org ) at -- : CST Nmap scan report for ... Host is up (.s latency). Not shown: closed ports PORT STATE SERVICE /tcp open ssh /tcp open rpcbind /tcp open http-proxy /tcp open unknown MAC Address: B:A::CF:FD:D (Unknown) Nmap done: IP address ( host up) scanned in . seconds
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