1,654 reputation
21629
bio website paulgreg.me
location France
age 34
visits member for 5 years, 6 months
seen Aug 19 at 7:13

Love :

  • programming in JavaScript, Java, Python (GitHub, Google Code, SourceForge),
  • GNU/linux and Open Source,
  • IT security,
  • hacking hardware (Arduino, Raspberry, Thinkpad series, building NAS and gaming PCs, Nokia n800/n900, Kurobox, iLiad iRex).

Jan
3
comment How do I fix my server to boot properly after removing / adding a drive on my mdadm software RAID
A mdadm --misc --zero-superblock /dev/sde and mdadm --misc --zero-superblock /dev/sde1 totally fixed the problem. I didn’t know that RAID arrays were auto-discovered at boot from superblocks. Thx
Jan
3
comment How do I fix my server to boot properly after removing / adding a drive on my mdadm software RAID
No, I have to try that ! alxgomz suggested it too.
Jan
3
comment How do I fix my server to boot properly after removing / adding a drive on my mdadm software RAID
Oh sorry. Yes, it’s a data partition but server will enter into recovery/initramfs mode. That‘s why I said boot’s broken but I agree, it’s not quite clear...
Jan
3
comment How do I fix my server to boot properly after removing / adding a drive on my mdadm software RAID
Yes, I tried to run update-initramfs and updated grub but that didn’t changed anything. Also, I tried to specify each partition (but by name) in my mdadm.conf but I’ve got still the same error at boot and same bind<sde> in dmesg. Where does that comes from ? I’ll try to specify them by uuid but I had no hope.
Jun
8
comment Will my network equipment work with IPv6?
I've updated my question to remove anything related to switch/hub.
Jun
8
comment Will my network equipment work with IPv6?
Yes, of course, you're both right ! I was totally wrong. So, my question is not relevant !
Jun
8
comment Will my network equipment work with IPv6?
Are you sure ? Switchs are intelligent devices which understand the IP recipient address for a packet and send it directly to recipient. That's avoid broadcasting like hubs do. As IPv6 IP addresses are way different than IPv4 one, switch will not be able to redirect traffic if they do not understand IPv6. On the best side, they will act as hubs, which will decrease network performance drastically.
Jun
6
comment Linux: encrypting directories. Truecrypt? Dm-crypt?
By the way, you can set up a dm-crypt encryption on your filesystems directly from Ubuntu installation, see kuparinen.org/martti/comp/ubuntu/en/cryptolvm.html for further details.
May
7
comment What tools should you absolutely know as a Windows/Linux Sysadmin?
I was thinking about software but hardware is useful too. I think I will transform that post as a CW to list all tools.
May
5
comment The perfect server room?
I didn't knew that. I would be glad to have more information about the fiction part.
May
5
comment How many and which partitions should I create for a linux server?
The question is more on a general purpose but still for servers.
Apr
30
comment Is it bad to defrag a minimally fragmented drive?
Also, be sure to not defragment memory based drive, like usb stick, flashcard or SSD, because it's reducing product's life ! Here's why : ask-leo.com/should_i_defragment_my_usb_flash_drive.html
Apr
30
comment What is the best way to gain access when the password is unknown?
The cool thing about ophcrack is that it's based on Rainbow Tables (en.wikipedia.org/wiki/Rainbow_table), which are terrific ! Here's a good article by Jeff Attwood : codinghorror.com/blog/archives/000949.html