netstat-tap:
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 localhost.localdo:10025 *:* LISTEN 11536/master
tcp 0 0 *:mysql *:* LISTEN 1779/mysqld
tcp 0 0 *:http-alt *:* LISTEN 28263/apache2
tcp 0 0 *:www *:* LISTEN 28263/apache2
tcp 0 0 *:tproxy *:* LISTEN 28263/apache2
tcp 0 0 87.237.212.250:domain *:* LISTEN 3958/named
tcp 0 0 230302.vps.fsdat:domain *:* LISTEN 3958/named
tcp 0 0 localhost.locald:domain *:* LISTEN 3958/named
tcp 0 0 *:ftp *:* LISTEN 3935/pure-ftpd (SER
tcp 0 0 *:ssh *:* LISTEN 14015/sshd
tcp 0 0 *:smtp *:* LISTEN 11536/master
tcp 0 0 localhost.localdoma:953 *:* LISTEN 3958/named
tcp 0 0 *:https *:* LISTEN 28263/apache2
tcp 0 0 localhost.localdo:mysql localhost.localdo:41776 ESTABLISHED 1779/mysqld
tcp 0 0 localhost.localdo:41776 localhost.localdo:mysql ESTABLISHED 28148/smtp
tcp 0 240 230302.vps.fsdata.s:ssh 94.191.158.244.br:43580 ESTABLISHED 7924/0
tcp6 0 0 [::]

op3 [::]:* LISTEN 3857/couriertcpd
tcp6 0 0 [::]:imap2 [::]:* LISTEN 3828/couriertcpd
tcp6 0 0 [::]:domain [::]:* LISTEN 3958/named
tcp6 0 0 [::]:ftp [::]:* LISTEN 3935/pure-ftpd (SER
tcp6 0 0 [::]:ssh [::]:* LISTEN 14015/sshd
tcp6 0 0 ::1%1551491029:953 [::]:* LISTEN 3958/named
tcp6 0 0 [::]:imaps [::]:* LISTEN 3846/couriertcpd
tcp6 0 0 [::]

op3s [::]:* LISTEN 3883/couriertcpd
Thanks.
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