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TPC Linux Thread | Queries | Answers | Whatnot

  • @cy

    Ano ba gusto mo matutunan? Mahirap kasi kung wala kang goal. Kaya mas mabilis matuto sa work kasi pwersado ka matuto.

    Sample, gawa ka ng webserver, LAMP stack.

    At least mula dun matutunan mo, ano ba ok, Centos? Debian? Tapos pano ba mag install ng apache2, pano mag install ng php5, mysql.

    Pano mag config ng virtualhost sa apache, pano gumawa ng database.

    Lahat yan command line lang.

    Tapos kapag nagka issue pano mag troubleshoot? Pano ko ma check running services? Pano mag kill ng process? Pano mag check ng permission sa file at directory, pano mag set?

    Start ka dyan hehe
  • Tama si master rash..

    Learning the basic command line alone is a big task para saken. Master that, then move on to your goals about learning Linux.

    Nalala ko dati, just installing and configuring device drivers took me alot of Google hours of research.
  • para makatulong sa inyo:

    http://www.explainshell.com/

    at

    http://ss64.com/
  • fast way
    sudo dd if=/dev/zero of=/dev/sdx bs=4M count=1


    this one help me quick format my drive, and rebuild my qnap. thanks!
  • basics pa lng natutunanan ko mga pwd ls mkdir rm man haha sana matutunan ko to im giving it 1 week of my time to learn this operating system hehe
  • @asdf76
    magandang babasahin ito para sa shell basics. very foundational
    http://linuxcommand.org/tlcl.php

    edit: naiwan ang link

    @phdot_com
    no problem!

    -- edited by zeus0611 on Nov 28 2014, 11:34 PM
  • @asdf76

    Try to tackle real world projects or goals, example, a company needs a ticketing system na free. Gawa ka nun.
  • sir ano magandang gamitin pag monitor ng internet connection para makita yung history and papaano kayo nag stress test ng internet connection?
  • cacti pang monitor,

    http://www.cacti.net/

    tas torrent (madaming torrent connection at pc) lang gamit kung pang test hahaha, ewan ko kung meron pang stress test

    -- edited by dawinsm on Dec 12 2014, 11:04 AM
  • ^

    Thanks sir mrtg kasi una kong ginamit pero parang nakukulangan ako, iftop naman parang walang history realtime monitoring lang at yung vnstat subukan ko palang mukhang ok.

    sa dami alin kaya ang subok na???
  • @CMcoy
    gamit ko rito vnstat at sar (sysstat). vnstat maganda para sa realtime monitoring tapos kapag sinama niyo sa http://www.sqweek.com/sqweek/?p=1 PHP vnstat frontend, may historical graphs kayo, pero hanggang per hour ang granularity.
    sar (from package sysstat) may realtime monitoring rin at mas detalyado. puwede niyong gamitin sa isang while loop para magkaroon kayo ng per second utilization ng bandwidth. puwedeng ilagay sa gnuplot para may graph rin kayo, per ~second granularity.
  • Thanks sir yan vnstat isusunod ko sa ngayon sinubukan ko cacti ok rin


    mga sir tanong lang bakit kaya di ko maaccess ang web server sa outside Lan PLDT portal lagi nagdidirect ,pero pag local ip gamit ko naaccess ko naman.

    modem : PLDT ZyXEL P-660HN-T1A

    naka enable naman yung SUA Only (Active Network Address Translation)

    sa port forwarding

    Service Name = Web Server
    Port = 80 Start port d2
    Local IP = "Ip ng linux box"
    Port = 80 (start/end same value din sa port translation)

    naka enable din yung Active the Universal Plug and Play(UPNP) Service

    yung sa Advanced > Remote MGMT yung mga Server Access ginawa ko ng Lan and WAN

    ito naman result sa nmap ng external ip

    PORT STATE SERVICE
    21/tcp open ftp
    23/tcp open telnet
    80/tcp open http


    may kulang pa ba sa config ko sa modem??? Thanks

    -- edited by CMacoy on Dec 14 2014, 01:13 PM
  • PORT STATE SERVICE
    21/tcp open ftp
    23/tcp open telnet
    80/tcp open http


    Open sa public ung ip mo? I suggest to replace ftp with sftp and telnet with ssh even nasa local network ka pa.

    mga sir tanong lang bakit kaya di ko maaccess ang web server sa outside Lan PLDT portal lagi nagdidirect ,pero pag local ip gamit ko naaccess ko naman.


    Di kaya sa network ng pldt yan? Kasi dati nagwowork ako sa ISP binablock namin ung port 80 not unless sabihin ni customer. Same with port 110. 143 and 25.

    -- edited by packets on Dec 17 2014, 11:05 AM
  • Yup sir inopen ko di pa rin ako makapasok sa Linux Box sa PLDT na kaya problema nito? Thanks
  • @CMacoy
    yung sa Advanced > Remote MGMT yung mga Server Access ginawa ko ng Lan and WAN

    dapat LAN lang iyan. kung yung unit gateway, tatamaan muna yung modem para sa admin niya kasi yan yung WAN facing side. conflict sa port kung baga.
    papayo na rin na kung wala po kayong ftp at telnet server para sa linux box, sarado sa WAN side dapat yan. security risk po. LAN only dapat ang setting. dahil may linux box naman po kayo, puwede niyong mabuksan yung admin ng modem/router kung kailangan gamit ang ssh forwarding (ssh -D $somerandomport) o vpn.

    bukas ang tcp/80 incoming. ang alam ko lang na blocked port sa pldt ay tcp/25 outgoing. residential line amin.
  • Thanks sir yup naka LAn default ko inopen ko lang sa wan baka sakaling doon ko maaccess ang webserver sa external kaso ganun pa rin sa PLDT portal pa rin ako pumapasok kahit inilipat ko ng port yung PLDT portal (81) connection timeout pa rin ang display :(
  • hindi ko lang masyadong gamay kung paano gumana port forwarding ng zyxel. medyo nakakalito nga itsura.

    gumagana yung http://linuxboxip:81 pero timeout sa http://linuxbox ?
  • Nasa repo na pala ng CentOS:

    Critical NTP Vulnerability in ntpd prior to 4.2.8 <click here for link>

    CentOS 5
    yum update ntp
    ntp x86_64 4.2.2p1-18.el5.centos
    rpm -q --changelog ntp | less

    * Fri Dec 19 2014 Johnny Hughes <johnny@centos.org> 4.2.2p1-18.el5.centos
    - Roll in CentOS Branding

    * Fri Dec 19 2014 Miroslav Lichvar <mlichvar@redhat.com> 4.2.2p1-18.el5
    - don't generate weak control key for resolver (CVE-2014-9293)
    - don't generate weak MD5 keys in ntp-keygen (CVE-2014-9294)
    - fix buffer overflows via specially-crafted packets (CVE-2014-9295)

    CentOS 6
    yum update ntp
    ntp x86_64 4.2.6p5-2.el6.centos
    rpm -q --changelog ntp | less
    * Fri Dec 19 2014 Johnny Hughes <johnny@centos.org> 4.2.6p5-2.el6.centos
    - Add CentOS Pool servers

    * Fri Dec 19 2014 Miroslav Lichvar <mlichvar@redhat.com> 4.2.6p5-2
    - don't generate weak control key for resolver (CVE-2014-9293)
    - don't generate weak MD5 keys in ntp-keygen (CVE-2014-9294)
    - fix buffer overflows via specially-crafted packets (CVE-2014-9295)
    - don't mobilize passive association when authentication fails (CVE-2014-9296)

  • gumagana yung http://linuxboxip:81 pero timeout sa http://linuxbox ?


    parehong gumagana sya sir pag inaccess sa local ip pero kung ip na ng PLDT ayaw talaga tingin ko sa pldt na ang problem home dsl lang kasi gamit ko .

    Thanks
  • may screenshot po kayo kung ano yung lumalabas?
  • heads up, nasty bug around
    <click here for link> CVE-2015-0235 aka GHOST

    patch and restart!
  • good day po mga master.. working po ako sa ibm as a aix operator.. mga basic commands lang po alam ko.. meron po ba kayong alam na training center for linux or aix para magkacertificate? yung ibm kasi walang training kaya hanggang ngayon mga basic pa din alam ko . thanks po mga master!
  • new here tanong lang kung pwede ba ang Ubuntu sa Low End laptop via Virtual Box ? hindi ba lag yun plan ko kase mag develop ng Costom kernel ng Android via Source code so linux machine need non XD
  • you will need a bit, or a lot, depending on how 'low-end' your pc is, and putting it on a VM will take another toll on performance...

    based on my experience, my PC is an i5-4570 with 32GB of ram with SSD, and it takes around 20minutes to compile, I tried it to compile on a few PC at home (just for good measure and a good laugh) a few months ago, and a 1.2GHz dual core PC with 512MB of ram, took around 5hrs+, a 2GHz core2duo with 4G of ram took around 2hrs (this is with an old 5400RPM laptop drive)

    well, if you have the patience you can use any PC, but for android kernel and system compilation, you need a lot of RAM and a fast HD.
  • o yung mga gustong magpractice ng website navigation, cpanel, mx settings, mail server, dns config..

    etc, etc,

    eto, dito try this, it's free...

    free domain, vps and hosting,



    <click here for link>

    ........
  • shameless plug po...

    we're hiring people with extensive knowledge in Linux. compensation is one of the best (if I may say). work schedule is 12/4, which means 12 hours a day for 4 days. You will also have 4 rest days after (more time with family). Office is located at Makati Business District. pm me if interested.

    -- edited by coldblooded_neo on Mar 23 2015, 09:28 AM
  • @baratzki

    Do you really need 32GB ram in order to achieve 20minutes? Or it doesn't use the whole 32GB?
  • 32gb is actually twice the 'recommended' system requirements in building the whole package, some reference: <click here for link>

    yes, I'm seeing almost full usage, when I'm doing builds, it does help as it prevents swapping, haven't tried to benchmark using half of my ram though, maybe will try over the weekend to see...

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