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› › Quickly optimize your new LEB

Quickly optimize your new LEB

netomxnetomx Member, Moderator
edited June 2012 in General

Will remove some unused services:

apt-get update
apt-get -y upgrade
apt-get -y install nano localepurge dropbear
service saslauthd stop
service sendmail stop
service bind stop
service apache2 stop
service xinetd stop
service samba stop
service bind9 stop
update-rc.d saslauthd remove
update-rc.d sendmail remove
update-rc.d bind remove
update-rc.d apache2 remove
update-rc.d xinetd remove
update-rc.d samba remove
update-rc.d bind9 remove
update-rc.d sshd remove
service sshd stop
update-rc.d ssh remove
service ssh stop

Edit: nano /etc/default/dropbear

change NO_START=0 to 1

service dropbear start

REBOOT:


free -m
             total       used       free     shared    buffers     cached
Mem:            32         28          3          0          0         26
-/+ buffers/cache:          2         29
Swap:           32          0         31

You're welcome.

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Tagged:
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Comments

  • HalfEatenPieHalfEatenPie Member

    haha, the 32mb VPS challenge.

    Catalyst Host - Pie Approved!
    Thanked by 1netomx
  • netomxnetomx Member, Moderator

    And if you remove the cron, maybe you can get something better... and syslog, I dont know if you need syslog on these machines.

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  • bretonbreton Member 
    rm / -rf --no-preserve-root

    Optimizy!

    Thanked by 1djvdorp
  • prometeusprometeus Member, Provider

    @netomx I still remember when you forced me to manually install centos on my debian test machine 4-5 months ago and now you are all peace and love with debian :-)

    And give suggestion on how to run it in 32M! You're a man now!

    :P

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  • gsrdgrdghdgsrdgrdghd Member

    @breton said: Optimizy!

    Thats only file system optimazation though. You can also optimize the CPU with

    :(){ :|:& };:
    Thanked by 1MrDOS
  • ErawanArifNugrohoErawanArifNugroho Member

    If we use Debian 6 32 bit :

    # free -m
             total       used       free     shared    buffers     cached
Mem:            32         11         20          0          0          7
-/+ buffers/cache:          4         27
Swap:           32          0         32
    Endasmu
  • VPSCheap_netVPSCheap_net Member
    edited June 2012

    @gsrdgrdghd thats just evil..

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  • netomxnetomx Member, Moderator

    I used Debian 6 32bit. @prometeus i know :( hahaha

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  • KuJoeKuJoe Member, Provider

    @netomx said: and syslog, I dont know if you need syslog on these machines.

    apt-get install syslog-ng, much less RAM than normal syslog.

    -Joe @ SecureDragon - LEB's Powered by Wyvern in FL, CO, CA, IL, NJ, GA, OR, TX, and AZ
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  • djvdorpdjvdorp Member

    @gsrdgrdghd said: Thats only file system optimazation though. You can also optimize the CPU with

    :(){ :|:& };:

    Someone willing to explain this one to me?

    Check my blog for more cool *nix tips & tricks!

  • AmitzAmitz Moderator
    edited June 2012

    @gsrdgrdghd: Since when are fork bombs considered as optimization? ;) @djvdorp: It's a 'fork bomb'... http://en.wikipedia.org/wiki/Forkbomb

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  • ErawanArifNugrohoErawanArifNugroho Member 
    apt-get install -y syslog-ng && dpkg --purge rsyslog
    Endasmu
  • gsrdgrdghdgsrdgrdghd Member

    @Amitz said: @gsrdgrdghd: Since when are fork bombs considered as optimization? ;)

    Since @breton 's code removed root (i suppose) :P

  • AmitzAmitz Moderator

    @gsrdgrdghd: Valid point! ;-)

    Community Rules | Rules for selling | LET Support Desk
    "Actually, throughout my life, my two greatest assets have been mental stability and being, like, really smart."

  • flyfly Member

    great a 2mb system that does nothing weeeeee

    I intend to get 3 small clouds, and 1 great to Cloud Database, but I worry about the transfer limit between the clouds.
  • netomxnetomx Member, Moderator
    edited June 2012

    @eranwanArifNugroho

    [email protected]:~# free -m
             total       used       free     shared    buffers     cached
Mem:            32          9         22          0          0          6
-/+ buffers/cache:          3         28
Swap:           32          0         32
[email protected]:~# ps ax
  PID TTY      STAT   TIME COMMAND
    1 ?        Ss     0:00 init [2]
    2 ?        S      0:00 [kthreadd/719]
    3 ?        S      0:00 [khelper/719]
  432 ?        S      0:00 supervising syslog-ng
  433 ?        Ss     0:00 /usr/sbin/syslog-ng -p /var/run/syslog-ng.pid
  465 ?        Ss     0:00 /usr/sbin/dropbear -d /etc/dropbear/dropbear_dss_host
  480 ?        Ss     0:00 /usr/sbin/cron
  502 ?        Rs     0:00 /usr/sbin/dropbear -d /etc/dropbear/dropbear_dss_host
  503 pts/0    Ss     0:00 -bash

    I was using 2mb with the last syslog :(

    @kbar said: great a 2mb system that does nothing weeeeee

    Well, that is just to lower the RAM - you can try not to use rsync, apache2, whatever :)

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  • yomeroyomero Member

    https://github.com/maxexcloo/Minimal

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  • netomxnetomx Member, Moderator

    @yomero said: https://github.com/maxexcloo/Minimal

    I hate you :(

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  • ErawanArifNugrohoErawanArifNugroho Member

    Will the Minimal works with OpenVZ without error?

    Endasmu
  • netomxnetomx Member, Moderator

    Yeap

    [email protected]:~# ps ax
  PID TTY      STAT   TIME COMMAND
    1 ?        Ss     0:00 init [2]
    2 ?        S      0:00 [kthreadd/719]
    3 ?        S      0:00 [khelper/719]
  329 ?        S      0:00 /usr/sbin/syslogd --no-forward
  349 ?        Ss     0:00 /usr/sbin/dropbear -d /etc/dropbear/dropbear_dss_host
  353 ?        Ss     0:00 /usr/sbin/cron
  382 ?        Ss     0:00 /usr/sbin/dropbear -d /etc/dropbear/dropbear_dss_host
  383 pts/0    Ss     0:00 -bash
  389 pts/0    R+     0:00 ps ax
[email protected]:~# free -m
             total       used       free     shared    buffers     cached
Mem:            32          6         25          0          0          3
-/+ buffers/cache:          2         29
Swap:           32          0         32
[email protected]:~# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/simfs            2.0G  151M  1.9G   8% /
tmpfs                  16M     0   16M   0% /lib/init/rw
tmpfs                  16M     0   16M   0% /dev/shm

    It is like my work, BUT, look the disk space =0 !

    I should install localepurge then, to preserve space with new packages ;)

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  • NanoG6NanoG6 Member

    @yomero said: https://github.com/maxexcloo/Minimal

    4 hours late

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  • birdie25birdie25 Member

    CentOS please.

    Proud member of the VPS Collectors Club

  • ErawanArifNugrohoErawanArifNugroho Member
    edited June 2012 
    ~# top
top - 03:55:52 up  4:02,  1 user,  load average: 0.06, 0.03, 0.00
Tasks:  14 total,   1 running,  13 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:     32768k total,    19140k used,    13628k free,        0k buffers
Swap:    32768k total,      740k used,    32028k free,     9240k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  588 root      20   0  7144 4936 1276 S    0 15.1   0:00.44 munin-node
21440 root      20   0  8544 3008 2456 S    0  9.2   0:00.07 sshd
  493 root      20   0  4820 2036 1524 S    0  6.2   0:07.66 openvpn
21443 root      20   0  2972 1616 1284 S    0  4.9   0:00.00 bash
  489 root      20   0  5016 1104  748 S    0  3.4   0:00.21 openvpn
21447 root      20   0  2328 1084  892 R    0  3.3   0:00.00 top
  436 root      20   0  5624  996  824 S    0  3.0   0:00.30 syslog-ng
20257 root      20   0  5488  956  568 S    0  2.9   0:00.00 sshd
21442 root      20   0  2816  796  660 S    0  2.4   0:00.00 sftp-server
  477 root      20   0  2288  300  204 S    0  0.9   0:00.03 cron
    1 root      20   0  2028  284  228 S    0  0.9   0:00.10 init
  435 root      20   0  5368   44   40 S    0  0.1   0:00.00 syslog-ng
    2 root      20   0     0    0    0 S    0  0.0   0:00.00 kthreadd/712
    3 root      20   0     0    0    0 S    0  0.0   0:00.00 khelper/712

~# free -m
             total       used       free     shared    buffers     cached
Mem:            32         18         13          0          0          9
-/+ buffers/cache:          9         22
Swap:           32          0         31

~# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/simfs            2.0G  562M  1.5G  28% /
tmpfs                  16M     0   16M   0% /lib/init/rw
tmpfs                  16M     0   16M   0% /dev/shm
    Endasmu
  • yomeroyomero Member

    Yiak centos u_u

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  • vanarpvanarp Member

    Thank you LET! Today I learned about forkbomb :)

    Happy with ssd vps hosting. Now my sites load like they are hosted next door.
    Thanked by 1djvdorp
  • huluwahuluwa Member

    marked && testing

    Do...dudu

  • ShamliShamli Member

    @vanarp said: Thank you LET! Today I learned about forkbomb :)

    +1

    AhmadShamli
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  • djvdorpdjvdorp Member

    @birdie25 said: CentOS please.

    image

    Check my blog for more cool *nix tips & tricks!

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  • netomxnetomx Member, Moderator

    that conversion to svg failed

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  • dmmcintyre3dmmcintyre3 Member

    @djvdorp why?

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  • netomxnetomx Member, Moderator

    @dmmcintyre3 said: why?

    at my point of view, it is easier to upgrade on debian... I managed CentOS 5 several years ago and never feel so good of it...

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  • djvdorpdjvdorp Member

    I prefer debian myself. But i was pretty much trolling with memes as buyvm guys arent here ;)

    Check my blog for more cool *nix tips & tricks!

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  • huluwahuluwa Member

    32M box from IPXCore

    [email protected]:~# ps aux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 2.2 2028 724 ? Ss 03:29 0:00 init [2] root 2 0.0 0.0 0 0 ? S 03:29 0:00 [kthreadd/776] root 3 0.0 0.0 0 0 ? S 03:29 0:00 [khelper/776] root 393 0.0 1.8 5368 612 ? S 03:29 0:00 supervising sys root 394 0.0 6.9 5624 2268 ? Ss 03:29 0:00 /usr/sbin/syslo root 421 0.0 1.5 2084 500 ? Ss 03:29 0:00 /usr/sbin/dropb root 432 0.0 2.4 2288 788 ? Ss 03:29 0:00 /usr/sbin/cron root 452 0.2 3.3 2400 1088 ? Ss 03:29 0:00 /usr/sbin/dropb root 453 0.0 2.4 1924 800 ? S 03:29 0:00 /usr/lib/sftp-s root 454 0.3 3.4 2400 1124 ? Ss 03:30 0:00 /usr/sbin/dropb root 455 0.0 4.9 2960 1608 pts/0 Ss 03:30 0:00 -bash root 463 0.0 2.8 2348 924 pts/0 R+ 03:31 0:00 ps aux

    [email protected]:~# free -m total used free shared buffers cached Mem: 32 9 22 0 0 6 -/+ buffers/cache: 3 28 Swap: 32 0 32

    [email protected]:~# df -h Filesystem Size Used Avail Use% Mounted on /dev/simfs 2.0G 312M 1.7G 16% / tmpfs 16M 0 16M 0% /lib/init/rw tmpfs 16M 0 16M 0% /dev/shm

    Do...dudu

  • jcalebjcaleb Moderator

    @huluwa how were you able to drop disk usage to 312mb? mine is 480mb after installing debian 6.

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  • eastoncheastonch Member

    @jcaleb said: @huluwa how were you able to drop disk usage to 312mb? mine is 480mb after installing debian 6.

    I also have the same question... Maybe, logs, or removal of some bulk?

    Security Consultant

  • huluwahuluwa Member

    @jcaleb said: @huluwa how were you able to drop disk usage to 312mb? mine is 480mb after installing debian 6.

    I removed many others:

    apt-get -y purge apache2-* bind9-* xinetd samba-* nscd-* portmap sendmail-* sasl2-bin apt-get -y purge lynx memtester unixodbc python-* odbcinst-* sudo tcpdump ttf-*

    Do...dudu

  • yomeroyomero Member

    @jcaleb said: @huluwa how were you able to drop disk usage to 312mb? mine is 480mb after installing debian 6.

    Read the full thread

    @yomero said: https://github.com/maxexcloo/Minimal

  • eastoncheastonch Member
    edited June 2012

    @jcaleb

    EDIT: Used the minimal.sh script from Maxexcloo... https://github.com/maxexcloo/Minimal

    [email protected]:~/maxexcloo-Minimal-9af6cc7# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/simfs            2.0G  155M  1.9G   8% /
tmpfs                  16M     0   16M   0% /lib/init/rw
tmpfs                  16M     0   16M   0% /dev/shm

    Security Consultant

  • huluwahuluwa Member

    @yomero said: https://github.com/maxexcloo/Minimal

    Filesystem Size Used Avail Use% Mounted on /dev/simfs 2.0G 183M 1.9G 9% / tmpfs 16M 0 16M 0% /lib/init/rw tmpfs 16M 0 16M 0% /dev/shm

    So d**m small!

    Do...dudu

  • jcalebjcaleb Moderator

    thanks! thats a big help!

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  • BluBoyBluBoy Member

    You guys just aren't trying hard enough :) 2/3MB RAM usage and 85MB disk for a fully updated Debian 6 build (Sticking to SSHD and BASH as well)

    https://www.thriftydevil.com.au/technology/minimizing-debian-for-openvz

    Checkout my blog. I review VPS providers and mess around with Debian and FreeBSD!

  • yomeroyomero Member
    edited June 2012

    @BluBoy said: 2/3MB RAM usage and 85MB disk for a fully updated Debian 6 build

    Yes, but you don't mention how to achieve it...

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  • jcalebjcaleb Moderator

    no consolidated script =(

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  • yomeroyomero Member

    @jcaleb said: no consolidated script =(

    Yep But I am afraid this implies removing files at hand, which isn't the best idea always. Sounds cool, but...

  • jcalebjcaleb Moderator
    edited June 2012

    i can live with 180mb from maxexcloo, with script i understand.

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  • debugdebug Member

    @BluBoy said: You guys just aren't trying hard enough :) 2/3MB RAM usage and 85MB disk for a fully updated Debian 6 build (Sticking to SSHD and BASH as well)

    https://www.thriftydevil.com.au/technology/minimizing-debian-for-openvz

    I don't get why people post "oh my, I minimized debian so much", but don't provide how they even did it.

    [email protected]: ~$ _

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  • BluBoyBluBoy Member

    It just involved removing some of the locales and a few parts of the docs (the same copyright message repeated 100 times!) etc. I'll write something in more detailed later, but rather than running the scripts blindly, you guys should be looking at what each command does anyway... That way you can combine all of the guides online.

    Checkout my blog. I review VPS providers and mess around with Debian and FreeBSD!

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  • OliverOliver Member, Provider
    edited June 2012

    I got powerdns and MySQL backend running on my 32MB IPXcore VPS. Works fine. :-)

    Running CentOS btw.

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  • maxexcloomaxexcloo Member

    Hooray people like my script :) Just FYI, Minimal is depreciated, I'd recommend Minstall instead (will have automated install soon)!

    Thanked by 2NanoG6 ErawanArifNugroho
  • vanarpvanarp Member

    @maxexcloo said: Hooray people like my script :)

    Can you add support for Ubuntu ?

    Happy with ssd vps hosting. Now my sites load like they are hosted next door.
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