Letsencrypt is broken on Debian Jessie

You need backports,

so first add the jessie-backports to your favourite apt source.list

# Backport
deb http://http.debian.net/debian jessie-backports main

Then apt-get update, and then install back letsencrypt forcing the use of the backports:

apt-get install -t jessie-backports letsencrypt

That’s it,

Giuseppe

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Installing and configuring Bareos (Bacula fork) with web front-end on Debian Wheezy.

And taking nice backups easy to be restored.

The story is quiet simple: some times ago I would have liked to have a kind of 8 months old backup for a friend of mine, but it was too late. So now, I want backups with a decent retention. So I can go “back in time” and recover files. Another choice could have been Subversion, but I’m going to backup images as well so, for this reason I’ll not take Subversion into consideration.
Continue reading “Installing and configuring Bareos (Bacula fork) with web front-end on Debian Wheezy.”

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Debian, managing LVM on a live system.

Playing with LVM on Debian Weehzy.

Resizing or deleting  partitions, gaining space and then redistribute it across the partition you need to resize.

Basically the logical operations are pretty simple and straightforward if taken into a ‘logical’ vie. Of course you have to shrink the partition first and then the volume, while, at the opposite if you want to grow a partition you have to resize the volume in order to be able to contain the bigger partition.
Continue reading “Debian, managing LVM on a live system.”

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Asus X202E Debian Wheezy Kernel 3.9

I bought this machine in Haarlem on July the 11 2013

Only remark: change the drive with an SSD and performance and battery will be better.

  • Processor Intel® Core™ i3 Processor
  • Operating System Gnu Debian Linux (Wheezy)
  • Chipset Intel® HM76 Express Chipset
  • Memory DDR3 1333 MHz SDRAM
  • Display 11.6″ 16:9 HD/GL/LED (1366×768)
  • Graphic Integrated Intel® HD Graphics
  • Storage 2.5″ SATA 500GB 5400 RPM
  • Card Reader 2 -in-1 card reader ( SD/ SDHC/ SDXC/ MMC)
  • Camera HD Web Camera
  • Networking Integrated or 802.11 a/b/g/n (Optional)
    Built-in Bluetooth™ V4.0
    10/100 Base T
  • Interface
    1 x COMBO audio jack
    1 x VGA port/Mini D-sub 15-pin for external monitor
    1 x USB 3.0 port(s)
    2 x USB 2.0 port(s)
    1 x RJ45 LAN Jack for LAN insert
    1 x HDMI
  • Audio
    Built-in Speakers And Microphone
  • Battery
    2Cells 5136 mAh 38 Whrs Polymer Battery
  • Power Adapter
    Output :
    19 V DC, 1.75 A, 33 W
    Input :
    100 -240 V AC, 50/60 Hz universal
  • Dimensions
    12 x 7.8 x 0.85 inch (WxDxH)

Hd Speed test

giuseppe@hitchy:~$ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   8826 MB in  2.00 seconds = 4416.24 MB/sec
 Timing buffered disk reads: 320 MB in  3.01 seconds = 106.42 MB/sec
giuseppe@hitchy:~$ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   6260 MB in  2.00 seconds = 3131.87 MB/sec
 Timing buffered disk reads: 320 MB in  3.02 seconds = 106.13 MB/sec
giuseppe@hitchy:~$ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   8688 MB in  2.00 seconds = 4347.58 MB/sec
 Timing buffered disk reads: 318 MB in  3.00 seconds = 105.92 MB/sec
giuseppe@hitchy:~$ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   8896 MB in  2.00 seconds = 4451.93 MB/sec
 Timing buffered disk reads: 294 MB in  3.05 seconds =  96.52 MB/sec

I changed my Hdd with an SSD one (kingstone 256gb) and this is the result:

giuseppe@hitchy:~$ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   9066 MB in  2.00 seconds = 4536.79 MB/sec
 Timing buffered disk reads: 1326 MB in  3.00 seconds = 441.40 MB/sec
giuseppe@hitchy:~$ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   8986 MB in  2.00 seconds = 4500.88 MB/sec
 Timing buffered disk reads: 1322 MB in  3.00 seconds = 440.64 MB/sec
giuseppe@hitchy:~$ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   8564 MB in  2.00 seconds = 4285.12 MB/sec
 Timing buffered disk reads: 1326 MB in  3.00 seconds = 441.30 MB/sec
giuseppe@hitchy:~$

CPU info

giuseppe@hitchy:~$ cat /proc/cpuinfo
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 58
model name	: Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz
stepping	: 9
microcode	: 0x15
cpu MHz		: 800.000
cache size	: 3072 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx f16c lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips	: 3591.53
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 58
model name	: Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz
stepping	: 9
microcode	: 0x15
cpu MHz		: 800.000
cache size	: 3072 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 2
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx f16c lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips	: 3591.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 58
model name	: Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz
stepping	: 9
microcode	: 0x15
cpu MHz		: 800.000
cache size	: 3072 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx f16c lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips	: 3591.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 58
model name	: Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz
stepping	: 9
microcode	: 0x15
cpu MHz		: 800.000
cache size	: 3072 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 2
apicid		: 3
initial apicid	: 3
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
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 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx f16c lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips	: 3591.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

Memory info

giuseppe@hitchy:~$ cat /proc/meminfo
MemTotal:        3944568 kB
MemFree:          496140 kB
Buffers:          219088 kB
Cached:          1233868 kB
SwapCached:         3004 kB
Active:          2438584 kB
Inactive:         754240 kB
Active(anon):    1770592 kB
Inactive(anon):   425496 kB
Active(file):     667992 kB
Inactive(file):   328744 kB
Unevictable:          80 kB
Mlocked:              80 kB
SwapTotal:       8151036 kB
SwapFree:        8130268 kB
Dirty:                88 kB
Writeback:             0 kB
AnonPages:       1736936 kB
Mapped:           221064 kB
Shmem:            456216 kB
Slab:             174340 kB
SReclaimable:     110672 kB
SUnreclaim:        63668 kB
KernelStack:        3848 kB
PageTables:        36396 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    10123320 kB
Committed_AS:    5287456 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      443312 kB
VmallocChunk:   34359222256 kB
HardwareCorrupted:     0 kB
AnonHugePages:         0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       73728 kB
DirectMap2M:     4091904 kB

lspci

giuseppe@hitchy:~$ lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation Device 0153 (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
00:1f.6 Signal processing controller: Intel Corporation 7 Series/C210 Series Chipset Family Thermal Management Controller (rev 04)
02:00.0 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01)
03:00.0 Ethernet controller: Atheros Communications Inc. AR8162 Fast Ethernet (rev 10)

Some more testing

I want to do some more tests so i can compare these results with the ones from my macbook and my office dell.
so i install first the software:

sudo apt-get install sysbench

and then

giuseppe@hitchy:~$ sudo sysbench --test=cpu --cpu-max-prime=20000 run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 1

Doing CPU performance benchmark

Threads started!
Done.

Maximum prime number checked in CPU test: 20000

Test execution summary:
    total time:                          46.9925s
    total number of events:              10000
    total time taken by event execution: 46.9904
    per-request statistics:
         min:                                  4.67ms
         avg:                                  4.70ms
         max:                                 10.80ms
         approx.  95 percentile:               4.75ms

Threads fairness:
    events (avg/stddev):           10000.0000/0.00
    execution time (avg/stddev):   46.9904/0.00

This is the configuration file for Kernel 3.9.0 which is needed (unless someone teelsme how to…) to make the touchscreen work in gnome.

Linux-3.9-kernel-config <- Bluetooth and Ethernet Card DON’T WORK, Touchscreen works, all rest work the same.

If someone wants to share or help, thanks in advance.

Giuseppe

(Visited 1,353 times, 1 visits today)

Installing Skype on Debian Wheezy 64bit

How to install Skype on your brand new Debian Wheezy 64bit

I’m migrating all my personal computers to Debian Wheezy (or Jessie in some cases). Personally i hate Skype but i have friends who don’t want to understand the importance of using open source software only, and for this reason i need Skype at least to school them to the open source life style.

Continue reading “Installing Skype on Debian Wheezy 64bit”

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How to take a screenshot with Gnome in Debian Wheezy

gnome screenshot screenshotScreenshot in gnome is very easy, as there is a program called: Screenshot 🙂

This program should come with the default Gnome 3 installation with the Debian Wheezy installer. You can find it in the Debian Classic application menu as well as in the Gnome application menu (the cool one).

Continue reading “How to take a screenshot with Gnome in Debian Wheezy”

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How to record your desktop on Debian using Gnome

recordmydesktop interface in gnomeRecording my desktop on Debian with RecordMyDesktop.

If you are using Debian or other debian derivatives, you can record your desktop session to a video using RecordMyDesktop. This program is available in the Wheezy repository and ad usual, you just need a command to install it:

sudo apt-get install recordmydesktop gtk-recordmydesktop

The program will be available in gnome menu and in the Debian applications menu: Continue reading “How to record your desktop on Debian using Gnome”

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