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Connection getting dropped immediately on telnet
Closing telnet connection gracefully from session mode itself without going to telnet promptTelnet SMTP connectionConection refused error for telnet and sshTelnet stuck on “connecting”Telnet Session “Stuck” while in PuTTYCannot open a connection from a PC but the host can be reached from other computersConnection closed by foreign host – telnettelnet to smtp . 421 4.3.2 Service not available Connection closed by foreign hostCan't telnet to routerReceiving ERR_CONNECTION_REFUSED intermittently while browsing websites
Am getting a connection closed by foreign host error on port 465 but working fine for another port 993. What could be the issue.
% telnet x.x.x.x 465
Trying x.x.x.x...
Connected to x.x.x.x
Escape character is '^]'.
Connection closed by foreign host.
telnet
asked Sep 19 '13 at 12:09
tomfranstomfrans
11
bumped to the homepage by Community♦ 4 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
Am getting a connection closed by foreign host error on port 465 but working fine for another port 993. What could be the issue.
% telnet x.x.x.x 465
Trying x.x.x.x...
Connected to x.x.x.x
Escape character is '^]'.
Connection closed by foreign host.
telnet
asked Sep 19 '13 at 12:09
tomfranstomfrans
11
bumped to the homepage by Community♦ 4 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
Am getting a connection closed by foreign host error on port 465 but working fine for another port 993. What could be the issue.
% telnet x.x.x.x 465
Trying x.x.x.x...
Connected to x.x.x.x
Escape character is '^]'.
Connection closed by foreign host.
telnet
asked Sep 19 '13 at 12:09
tomfranstomfrans
11
Am getting a connection closed by foreign host error on port 465 but working fine for another port 993. What could be the issue.
% telnet x.x.x.x 465
Trying x.x.x.x...
Connected to x.x.x.x
Escape character is '^]'.
Connection closed by foreign host.
telnet
telnet
asked Sep 19 '13 at 12:09
tomfranstomfrans
11
asked Sep 19 '13 at 12:09
tomfranstomfrans
11
asked Sep 19 '13 at 12:09
tomfranstomfrans
11
asked Sep 19 '13 at 12:09
tomfranstomfrans
11
asked Sep 19 '13 at 12:09
tomfranstomfrans
11
11
bumped to the homepage by Community♦ 4 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 4 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
add a comment |
1 Answer
1
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oldest
votes
Port 465 is the SMTPS port, SMTP over SSL. As such, your probably want to use the openssl tool rather than telnet if you are trying to debug SMTP. This won't solve your original issue though, which is that the remote host is immediately disconnecting you. This may be due to it only allowing connections from certain addresses. The way this is implemented is to accept connections and then close them if they don't originate from an accepted IP address. I would need more details on the SMTP server you are using, and its configuration, to help you more than that.
To use openssl, try:
openssl s_client -connect remote.host:465
answered Sep 19 '13 at 12:19
wingedsubmarinerwingedsubmariner
1,40277
add a comment |
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Port 465 is the SMTPS port, SMTP over SSL. As such, your probably want to use the openssl tool rather than telnet if you are trying to debug SMTP. This won't solve your original issue though, which is that the remote host is immediately disconnecting you. This may be due to it only allowing connections from certain addresses. The way this is implemented is to accept connections and then close them if they don't originate from an accepted IP address. I would need more details on the SMTP server you are using, and its configuration, to help you more than that.
To use openssl, try:
openssl s_client -connect remote.host:465
answered Sep 19 '13 at 12:19
wingedsubmarinerwingedsubmariner
1,40277
add a comment |
Port 465 is the SMTPS port, SMTP over SSL. As such, your probably want to use the openssl tool rather than telnet if you are trying to debug SMTP. This won't solve your original issue though, which is that the remote host is immediately disconnecting you. This may be due to it only allowing connections from certain addresses. The way this is implemented is to accept connections and then close them if they don't originate from an accepted IP address. I would need more details on the SMTP server you are using, and its configuration, to help you more than that.
To use openssl, try:
openssl s_client -connect remote.host:465
answered Sep 19 '13 at 12:19
wingedsubmarinerwingedsubmariner
1,40277
add a comment |
Port 465 is the SMTPS port, SMTP over SSL. As such, your probably want to use the openssl tool rather than telnet if you are trying to debug SMTP. This won't solve your original issue though, which is that the remote host is immediately disconnecting you. This may be due to it only allowing connections from certain addresses. The way this is implemented is to accept connections and then close them if they don't originate from an accepted IP address. I would need more details on the SMTP server you are using, and its configuration, to help you more than that.
To use openssl, try:
openssl s_client -connect remote.host:465
answered Sep 19 '13 at 12:19
wingedsubmarinerwingedsubmariner
1,40277
Port 465 is the SMTPS port, SMTP over SSL. As such, your probably want to use the openssl tool rather than telnet if you are trying to debug SMTP. This won't solve your original issue though, which is that the remote host is immediately disconnecting you. This may be due to it only allowing connections from certain addresses. The way this is implemented is to accept connections and then close them if they don't originate from an accepted IP address. I would need more details on the SMTP server you are using, and its configuration, to help you more than that.
To use openssl, try:
openssl s_client -connect remote.host:465
answered Sep 19 '13 at 12:19
wingedsubmarinerwingedsubmariner
1,40277
edited Sep 19 '13 at 12:32
answered Sep 19 '13 at 12:19
wingedsubmarinerwingedsubmariner
1,40277
answered Sep 19 '13 at 12:19
wingedsubmarinerwingedsubmariner
1,40277
answered Sep 19 '13 at 12:19
wingedsubmarinerwingedsubmariner
1,40277
1,40277
add a comment |
add a comment |
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