Quite simple but this solution should help many times
piątek, 5 kwietnia 2013
Checking files with .sign keys
Question: how to verify file with .sign key (for example updates downloaded from dell sites)
- first you have to generate your own certificate with gpg: gpg --gen-key
- download public key (ex: http://lists.us.dell.com/linux-security-publickey.txt)
- import public key gpg --import linux-security-publickey.txt
- sign public key: gpg --edit-key linux-security@dell.com then fpr (for check fingerprint) and (sign for signature check)
- check file with gpg command:
gpg --verify PER210_BMC_FRMW_LX_R278576.BIN.sign PER210_BMC_FRMW_LX_R278576.BIN
Result in Polish:
gpg: Podpisano w pon, 16 sie 2010, 13:41:21 CEST kluczem DSA o numerze 23B66A9D
gpg: Poprawny podpis złożony przez ,,Dell, Inc. (Product Group) ''
niedziela, 20 listopada 2011
poniedziałek, 7 listopada 2011
Power consumption with Ubuntu on Samsung NP350U2A
For couple of weeks I have been searching for new laptop (replacement for my old ThinkPad T61).
As I remember on my old T minimum power consumption was something about 19W.
Now with new Intel Core i5 my Ubuntu can work with only 8W!
Powertop on normal work - screen backlight on 50%, WiFi on and Chromium browser running (in background apache, mysql and so on)
Powertop on minimum power usage (almost everything turned off, screen backlight to minimum)
As I remember on my old T minimum power consumption was something about 19W.
Now with new Intel Core i5 my Ubuntu can work with only 8W!
Powertop on normal work - screen backlight on 50%, WiFi on and Chromium browser running (in background apache, mysql and so on)
Powertop on minimum power usage (almost everything turned off, screen backlight to minimum)
/var/log/messages on ubuntu 11.4
Why they do that?? Writing log's to /var/log/messages should be enabled by default...
To often I use this file to figure out what is going on. But there is simple solution for that:
and uncomment lines in section caled
To often I use this file to figure out what is going on. But there is simple solution for that:
vim /etc/rsyslog.d/50-default.conf
and uncomment lines in section caled
# Some "catch-all" log files.
niedziela, 23 października 2011
HP Laser Jet P1102w on Ubuntu 11.4
On my previous installation of ubuntu (10.10) dealing with my printer was a piece of cace. But now with 11.4 i was unable to print with default drivers or configuration with hp toolbox. It's strange that I had to compile drivers on such popular distro like Ubuntu...
http://foo2zjs.rkkda.com/
http://foo2zjs.rkkda.com/
środa, 19 października 2011
Time to make some cleaning
From over 4 years I have been working on my T61 laptop. Meantime I replaced disk and stored data on other media. My work is spread on too many location, and I have to say that I feel a bit lost. Also last accident with my hosting (rootnode.net) taught me to make backups - but to do that i have to sort all data I have.
So, the plan for this week is:
1. Sort all files from 3 disks.
2. Clean my "server" and place it on "datacenter" - heh I put that i quotation mark because server it's small computer based on Intel Atom and 1GB of ram, and datacenter it's a wooden wardrobe with 10Mb/s fiber internet connection ;D
3. Create script to rsync all data from my personal laptop and computer from work.
It sound easy...
So, the plan for this week is:
1. Sort all files from 3 disks.
2. Clean my "server" and place it on "datacenter" - heh I put that i quotation mark because server it's small computer based on Intel Atom and 1GB of ram, and datacenter it's a wooden wardrobe with 10Mb/s fiber internet connection ;D
3. Create script to rsync all data from my personal laptop and computer from work.
It sound easy...
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