TCP session is not timing out even when link is shut
Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty
Sequence of steps:
Using nc -l 9999 started listening on ubuntu vm.
Ran nc client is on another linux vm to connect to the above server
the interface connecting the client to server is shutdown
The application is not going down even after a long time (few hours)
Is this expected? I am using nc to replicate an issue wherein portscanner is connecting to an application (service port) and disconnecting ungracefully. The server keeps all these connections alive forever. Is this expected?
It is seen across all tcp applications including cassandra/zookeeper and in house applications.
tcp-ip
asked 3 mins ago
SriramSriram
11
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Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty
Sequence of steps:
Using nc -l 9999 started listening on ubuntu vm.
Ran nc client is on another linux vm to connect to the above server
the interface connecting the client to server is shutdown
The application is not going down even after a long time (few hours)
Is this expected? I am using nc to replicate an issue wherein portscanner is connecting to an application (service port) and disconnecting ungracefully. The server keeps all these connections alive forever. Is this expected?
It is seen across all tcp applications including cassandra/zookeeper and in house applications.
tcp-ip
asked 3 mins ago
SriramSriram
11
New contributor
Sriram is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty
Sequence of steps:
Using nc -l 9999 started listening on ubuntu vm.
Ran nc client is on another linux vm to connect to the above server
the interface connecting the client to server is shutdown
The application is not going down even after a long time (few hours)
Is this expected? I am using nc to replicate an issue wherein portscanner is connecting to an application (service port) and disconnecting ungracefully. The server keeps all these connections alive forever. Is this expected?
It is seen across all tcp applications including cassandra/zookeeper and in house applications.
tcp-ip
asked 3 mins ago
SriramSriram
11
New contributor
Sriram is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty
Sequence of steps:
Using nc -l 9999 started listening on ubuntu vm.
Ran nc client is on another linux vm to connect to the above server
the interface connecting the client to server is shutdown
The application is not going down even after a long time (few hours)
Is this expected? I am using nc to replicate an issue wherein portscanner is connecting to an application (service port) and disconnecting ungracefully. The server keeps all these connections alive forever. Is this expected?
It is seen across all tcp applications including cassandra/zookeeper and in house applications.
tcp-ip
tcp-ip
asked 3 mins ago
SriramSriram
11
New contributor
Sriram is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 mins ago
SriramSriram
11
New contributor
Sriram is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 mins ago
SriramSriram
11
New contributor
Sriram is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 mins ago
SriramSriram
11
asked 3 mins ago
SriramSriram
11
11
New contributor
Sriram is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Sriram is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Sriram is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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