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2d
comment AWS VPC External DNS issue
the generic AMIs are fine in a VPC
2d
comment AWS VPC External DNS issue
run your own DNS
Mar
12
comment how do I know if an SSD reaches its performance capability?
@yaoxing the word you want to use is performance or just speed
Mar
12
comment how do I know if an SSD reaches its performance capability?
you need to find out your tps to i/o ratio (compare stats) then conpare your current usage i/o to the ratings or wath the ups and downs of your usage stats and be worried when you start to see the peaks level off
Mar
12
comment how do I know if an SSD reaches its performance capability?
do you know the ratings of the hardware? if not then you will need to take it offline and run a benchmark
Mar
12
comment how do I know if an SSD reaches its performance capability?
set up performance monitoring software that gathers and plots speed statistics
Mar
10
comment How does a router get its IP address assigned?
at some point, like the day they get their first routers on the shipping crates, stuff is done manually, even for the biggest ISPs, Facebook, Google, etc.
Mar
9
comment How to connect ubuntu server via SSH if networking is down
the fastest way is to launch a new instance. but if data or config work needs to be saved then other image backups are needed. READ THEIR DOCUMENTATION
Mar
9
comment How to connect ubuntu server via SSH if networking is down
a security feature, how to prevent anyone from getting in. it is normally done at the console.
Mar
6
comment How to change the sshd listen address on Mac OS X?
it has a modified ssh or generates the ssh config? knowing this is needed to solve
Mar
6
answered How to change the sshd listen address on Mac OS X?
Mar
6
comment Zone delegation
can you show the zones from the delegation target?
Mar
5
comment How to find which folder is eating space fast?
or with lsof to see what files are open
Mar
5
comment Using IPTables to forward local requests on one port to a remote server on another port
your src won't be 127.0.0.1 it will be the IP of the interface being used ... unless the DB is on the same host
Mar
5
comment What are the symptoms of an overloaded webserver
look for CHANGES in the response time. in real life scenarios you don't know it was you but slowing down even if not is probably a good idea
Mar
5
comment Bash evaluation baffling
for those not seeing it the sort compares the character '4' to the character '1'.
Mar
4
comment Can not restart mysql service after getting Error 2002 Can't connect to local mysql server
do chown commands as root or via sudo ... carefully
Mar
4
comment SSH connection doesn't work from server to another server
server A is the big concern ... does it run any services that can be connected to OK?
Mar
4
comment SSH connection doesn't work from server to another server
to diagnose this use telnet to make simpler connections and try port 80 first and try other ports next ... and Itai's netstat command with the port number being tested each time
Mar
4
comment SSH connection doesn't work from server to another server
could either server be NATted or firewalled to block new connections for this port or ports in general?