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introduce latency between ec2 instances
I have a 2nodes Cassandra ring on ec2 (10.96.31.143, 10.254.94.177) in the same zone (east-1). How can I introduce a 3 seconds delay for all cassandra-related network communications between them? I...
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Is .NET experience a good thing or a bad for a Sr. Sysadmin?
I’m a sysadmin and become pretty good at ASP.NET development and .NET in general. Is there a chance that my .NET skills may be a disadvantage to me? What would the pointy-haired-boss think? The...
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how to investigate real problem with TX packet drops in linux?
I have my vps on CentOS running some my own software wich uses very fast algorithm of sending specially constructed RAW TCP packets to numerous systems running my software. I have noticed too many...
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wondering any rule to specify private ips?
Is there any rules to specify private ip address I guess 192.168., 169, 10* are all private ips, but I am not sure. Anyone can point out? Take a look at RFC5735 for a complete list of reserved...
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Does cable length affects response time of ping?
The question is above. Any link/idea is well appreciated. My best regards… Asked by n/a Yes, it does – theoretically The ping time is the sum of the processing and send time on the initiating side,...
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What does webmin exactly mean?
I have my own server application in C, I bind my server on localhost address 127.0.0.1 and let it listen in first case on port 10000 and in second case on port 20000 When I run command I lsof | grep...
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Why am I seeing webmin in lsof output?
I am running a server application (written in C), that is bound to my server on localhost address 127.0.0.1 and let it listen in first case on port 10000 and in second case on port 20000 When I run...
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