Mapping network connections between servers The 2019 Stack Overflow Developer Survey Results Are InAutomated Network MappingWhat tool do you use to monitor your servers?Do multiple network connections between switches increase bandwidth?Estimate daily network IO between 2 serversReverse Graphical network mapping architectureAutomated Network MappingTroubleshooting intermittent network failures and slowdownlog network connections before moving server?bridge network between two linux serversinfiniband network between 3 serversHow to enable Network mapping?

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Mapping network connections between servers



The 2019 Stack Overflow Developer Survey Results Are InAutomated Network MappingWhat tool do you use to monitor your servers?Do multiple network connections between switches increase bandwidth?Estimate daily network IO between 2 serversReverse Graphical network mapping architectureAutomated Network MappingTroubleshooting intermittent network failures and slowdownlog network connections before moving server?bridge network between two linux serversinfiniband network between 3 serversHow to enable Network mapping?



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1















Sometimes I'd like an easy way to produce lists over everything a server accepts or connects to. Not what it can connect to/accept connections from (firewall rules etc) but actual connections.



I can kind of solve this in a number of ways:



  • running ss or netstat on a schedule and collect data (how often and how long to make sure nothing slips through? yuck)

  • get firewall to log almost everything (not always an option)

Both these ideas should allow me to (with some postprocessing and additional data gathering to ) to generate lists of



  • which processes

  • send and/or receive data (ok, maybe technically just connects in some cases)

  • on what ports

  • to or from which addresses

But I still have a feeling I might be missing a simpler solution. Does something like inotify / Filesystemwatcher exist for networks? Or something that can be used to similar effect? I'm more or less comfortable in both Powershell/Bash and a few mainstream programming languages so it is OK even if it requires some assembly.



This question here is kind of similar but the tools recommended seems to be geared more towards what can be connected to, not where data actually flows: Automated Network Mapping










share|improve this question
























  • ExtraHop and NetScout are a few products that do what you are looking for. (The demos I've seen are impressive, but I've never used them beyond a proof-of-concept phase.)

    – Doug Deden
    8 hours ago

















1















Sometimes I'd like an easy way to produce lists over everything a server accepts or connects to. Not what it can connect to/accept connections from (firewall rules etc) but actual connections.



I can kind of solve this in a number of ways:



  • running ss or netstat on a schedule and collect data (how often and how long to make sure nothing slips through? yuck)

  • get firewall to log almost everything (not always an option)

Both these ideas should allow me to (with some postprocessing and additional data gathering to ) to generate lists of



  • which processes

  • send and/or receive data (ok, maybe technically just connects in some cases)

  • on what ports

  • to or from which addresses

But I still have a feeling I might be missing a simpler solution. Does something like inotify / Filesystemwatcher exist for networks? Or something that can be used to similar effect? I'm more or less comfortable in both Powershell/Bash and a few mainstream programming languages so it is OK even if it requires some assembly.



This question here is kind of similar but the tools recommended seems to be geared more towards what can be connected to, not where data actually flows: Automated Network Mapping










share|improve this question
























  • ExtraHop and NetScout are a few products that do what you are looking for. (The demos I've seen are impressive, but I've never used them beyond a proof-of-concept phase.)

    – Doug Deden
    8 hours ago













1












1








1








Sometimes I'd like an easy way to produce lists over everything a server accepts or connects to. Not what it can connect to/accept connections from (firewall rules etc) but actual connections.



I can kind of solve this in a number of ways:



  • running ss or netstat on a schedule and collect data (how often and how long to make sure nothing slips through? yuck)

  • get firewall to log almost everything (not always an option)

Both these ideas should allow me to (with some postprocessing and additional data gathering to ) to generate lists of



  • which processes

  • send and/or receive data (ok, maybe technically just connects in some cases)

  • on what ports

  • to or from which addresses

But I still have a feeling I might be missing a simpler solution. Does something like inotify / Filesystemwatcher exist for networks? Or something that can be used to similar effect? I'm more or less comfortable in both Powershell/Bash and a few mainstream programming languages so it is OK even if it requires some assembly.



This question here is kind of similar but the tools recommended seems to be geared more towards what can be connected to, not where data actually flows: Automated Network Mapping










share|improve this question
















Sometimes I'd like an easy way to produce lists over everything a server accepts or connects to. Not what it can connect to/accept connections from (firewall rules etc) but actual connections.



I can kind of solve this in a number of ways:



  • running ss or netstat on a schedule and collect data (how often and how long to make sure nothing slips through? yuck)

  • get firewall to log almost everything (not always an option)

Both these ideas should allow me to (with some postprocessing and additional data gathering to ) to generate lists of



  • which processes

  • send and/or receive data (ok, maybe technically just connects in some cases)

  • on what ports

  • to or from which addresses

But I still have a feeling I might be missing a simpler solution. Does something like inotify / Filesystemwatcher exist for networks? Or something that can be used to similar effect? I'm more or less comfortable in both Powershell/Bash and a few mainstream programming languages so it is OK even if it requires some assembly.



This question here is kind of similar but the tools recommended seems to be geared more towards what can be connected to, not where data actually flows: Automated Network Mapping







networking monitoring autodiscovery






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 12 hours ago







Erik I

















asked 13 hours ago









Erik IErik I

3181618




3181618












  • ExtraHop and NetScout are a few products that do what you are looking for. (The demos I've seen are impressive, but I've never used them beyond a proof-of-concept phase.)

    – Doug Deden
    8 hours ago

















  • ExtraHop and NetScout are a few products that do what you are looking for. (The demos I've seen are impressive, but I've never used them beyond a proof-of-concept phase.)

    – Doug Deden
    8 hours ago
















ExtraHop and NetScout are a few products that do what you are looking for. (The demos I've seen are impressive, but I've never used them beyond a proof-of-concept phase.)

– Doug Deden
8 hours ago





ExtraHop and NetScout are a few products that do what you are looking for. (The demos I've seen are impressive, but I've never used them beyond a proof-of-concept phase.)

– Doug Deden
8 hours ago










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