Newbie questions

ethernewbieethernewbie FranceMember Posts: 1
Hello everyone,

I'am new on Ethereum and I have some noob questions.
I read many docs and either perhaps I misunderstand or watch on the wrong places but I did not find the answers.
Below are some environment details...

Server directly facing on Internet with public IPv4.

CPU : Intel (eight cores)

$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 77
model name : Intel(R) Atom(TM) CPU C2750 @ 2.40GHz
stepping : 8
microcode : 0x122
cpu MHz : 2401.000
cache size : 1024 KB
physical id : 0
siblings : 8
core id : 0
cpu cores : 8
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid smep erms
bogomips : 4800.38
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

$ geth attach
instance: Geth/v1.1.3/linux/go1.5
datadir: /home/$USER/.ethereum
coinbase: $MY_ADDRESS
at block: 268926 (Mon, 21 Sep 2015 18:57:10 CEST)
modules: admin:1.0 db:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 shh:1.0 txpool:1.0 web3:1.0

Where :
- $USER is the local linux user account running geth,
- $MY_ADDRESS is my local Ethereum account address.

Question 1 :
Did I use the good commands to mine or did I forget some options ?
$nice geth --mine --minerthreads "8" --nat "none" --port "30303" --autodag --etherbase "$MY_ADDRESS" --datadir "/home/$USER/.ethereum"

Question 2 :
Should I better use the option "--nat "extip:a.b.c.d"" (where a.b.c.d is the IPv4 public address of my node) ?

Question 3 :
Is there a command to see how many block have been mined on my node...
- during the current geth mining session ?
- since I lauched the first geth mining session ?

Question 4 :
I read it is possible to earn Ether either by mining or by running contrats on my node.
How to run contracts ?

Question 5 :
My mining rate is around 2,06 MH/s.
Where am I comparing whith other CPUs ?

Thanks in advance for your patience and your replies.

PS : sorry for the mistakes, english is not my native language.
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