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тАО01-17-2007 09:38 AM
тАО01-17-2007 09:38 AM
open port 25
In linux, what command would you use to open port 25 for outbound mail. How do I check it.
service sendmail, shows its running but we can't seem to send e-mail out.
Points will be assigned.
service sendmail, shows its running but we can't seem to send e-mail out.
Points will be assigned.
3 REPLIES 3
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тАО01-17-2007 09:50 AM
тАО01-17-2007 09:50 AM
Re: open port 25
in the /etc/sysconfig/sendmail, change daemon from no to yes, restart sendmail.
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тАО01-18-2007 08:08 PM
тАО01-18-2007 08:08 PM
Re: open port 25
a) You'd have to check if "iptable" are maybe blocking outbound connections ("iptables -L")
b) Then you'd have to check if your routers or firewalls are blocking port 25 outbound
c) Then you'd have to check if your ISP is blocking port 25 outbound
In any case you can use:
% telnet mail.charite.de 25
to check if you can create outbound connections.
b) Then you'd have to check if your routers or firewalls are blocking port 25 outbound
c) Then you'd have to check if your ISP is blocking port 25 outbound
In any case you can use:
% telnet mail.charite.de 25
to check if you can create outbound connections.
Postfix/BIND/Security/IDS/Scanner, you name it...
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тАО01-20-2007 03:25 PM
тАО01-20-2007 03:25 PM
Re: open port 25
Sanjit,
netstat -nap | grep :25 and see if there are any local connections listening on that port. Daemons (such as sendmail) will typically open and close ports as needed without any user intervention needed. Good luck with your issue.
ken
netstat -nap | grep :25 and see if there are any local connections listening on that port. Daemons (such as sendmail) will typically open and close ports as needed without any user intervention needed. Good luck with your issue.
ken
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