5

This question already has an answer here:

Im using virtual server on hosting. There is Ubuntu 12.04 LTS. Im building pool websites, and stratum mining. I can connect to stratum on port 3333 via minerd on server, but cant connect from outside cpu miner, like mine. Here is a list which i get when trying this command netstat -ntlp | grep LISTEN :

root@vm9807:~# netstat -ntlp | grep LISTEN
tcp        0      0 0.0.0.0:3334            0.0.0.0:*               LISTEN      1757/python     
tcp        0      0 127.0.0.1:10025         0.0.0.0:*               LISTEN      1219/master     
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      987/mysqld      
tcp        0      0 0.0.0.0:587             0.0.0.0:*               LISTEN      1219/master     
tcp        0      0 127.0.0.1:11211         0.0.0.0:*               LISTEN      1121/memcached  
tcp        0      0 0.0.0.0:8332            0.0.0.0:*               LISTEN      1721/python     
tcp        0      0 0.0.0.0:8333            0.0.0.0:*               LISTEN      1757/python     
tcp        0      0 0.0.0.0:32333           0.0.0.0:*               LISTEN      1686/betacoind  
tcp        0      0 0.0.0.0:110             0.0.0.0:*               LISTEN      969/dovecot     
tcp        0      0 0.0.0.0:143             0.0.0.0:*               LISTEN      969/dovecot     
tcp        0      0 0.0.0.0:9333            0.0.0.0:*               LISTEN      1678/litecoind  
tcp        0      0 31.31.75.108:53         0.0.0.0:*               LISTEN      999/named       
tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN      999/named       
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      856/sshd        
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN      1219/master     
tcp        0      0 127.0.0.1:953           0.0.0.0:*               LISTEN      999/named       
tcp        0      0 0.0.0.0:4190            0.0.0.0:*               LISTEN      969/dovecot     
tcp        0      0 127.0.0.1:7777          0.0.0.0:*               LISTEN      1117/python     
tcp        0      0 0.0.0.0:993             0.0.0.0:*               LISTEN      969/dovecot     
tcp        0      0 0.0.0.0:995             0.0.0.0:*               LISTEN      969/dovecot     
tcp        0      0 0.0.0.0:3333            0.0.0.0:*               LISTEN      1721/python     
tcp6       0      0 :::32332                :::*                    LISTEN      1686/betacoind  
tcp6       0      0 :::32333                :::*                    LISTEN      1686/betacoind  
tcp6       0      0 :::80                   :::*                    LISTEN      1319/apache2    
tcp6       0      0 :::9333                 :::*                    LISTEN      1678/litecoind  
tcp6       0      0 :::53                   :::*                    LISTEN      999/named       
tcp6       0      0 :::9334                 :::*                    LISTEN      1678/litecoind  
tcp6       0      0 :::22                   :::*                    LISTEN      856/sshd        
tcp6       0      0 ::1:953                 :::*                    LISTEN      999/named       
root@vm9807:~# 

My vserver hosting is not blocking any ports, im not using any firewall. Help me please thankx

marked as duplicate by Eliah Kagan, karel, Eric Carvalho, Pilot6, Zanna Sep 23 '17 at 22:46

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

3

Just use nmap from another computer - this will scan and show all the open ports on your machine, as well as hardware and software information it is possible to get from it.

Just run:

sudo nmap -A -O IP_ADDRESS

or for more informative output:

sudo nmap -A -O -vvv IP_ADDRESS

You may need to install it with sudo apt-get install nmap first. atleast, that is the command for an Ubuntu/Debian machine.


For example, if I run this:

sudo nmap -A -O -vvv 192.168.1.6

it shows:

Starting Nmap 6.40 ( http://nmap.org ) at 2013-12-22 16:32 GMT
Nmap scan report for 192.168.1.6
Host is up (0.00037s latency).
Not shown: 991 filtered ports
PORT     STATE  SERVICE      VERSION
21/tcp   closed ftp
22/tcp   open   ssh  
2049/tcp closed nfs
MAC Address: **:**:**:**:**:** (MANUFACTURER-OF-NETWORKING-HARDWARE)
Device type: general purpose
Running: Linux 2.6.X
OS CPE: cpe:/o:linux:linux_kernel:2.6
OS details: Linux 2.6.9 - 2.6.27
Network Distance: 1 hop

TRACEROUTE
HOP RTT     ADDRESS
1   0.37 ms 192.168.1.6


OS and Service detection performed. Please report any incorrect results at http://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 13.24 seconds

This shows that it currently only has the ssh port open to access, on port 22, with the ftp and nfs ports available, but closed, on 21 and 2049 ports.

Yes, I have edited secret info out of the above output - including MAC Address: **:**:**:**:**:** (MANUFACTURER-OF-NETWORKING-HARDWARE)

Hope this helps smiley

  • when i run that command, on my pc...i cant see any of the ports that i need to be opened, but when i run nmap from server, i see them all, howcome ? – user227848 Dec 22 '13 at 17:14
  • If you are running it from a externally connected computer, it would have to go through the firewall and other things to see the open ports, whilst from the server, it is inside most security stuff that may restrict it. The external pc may have other things restricting it - e.g. the router it is connected to blocks it, or the Internet Service Provider blocks it... Are you running it on an Ubuntu PC? – Wilf Dec 22 '13 at 17:26
  • yes im using ubuntu desktop 13.10, i opend ports on my router to my ip, so it is not my pc or router problem. – user227848 Dec 22 '13 at 17:32
  • Don't know then... I know things like my Android phone restrcit nmap via wifi, so it could just be that your server is already secure :-). – Wilf Dec 22 '13 at 17:38
  • but i dont want it this secure :D try typing ./minerd --url stratum+tcp://bet.webcoin.us:3334 --userpass ubuntu.ubuntu:ubuntu -a sha256d – user227848 Dec 22 '13 at 17:44

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