System and networks manager, helpdesk technician

Grégory Catto

*** ****** ** ** *********** - ****0 Sommières

*******.*****@*******.** tel.+336-**-**-**-**

Car allowing B – 35 years old – Dad of Stella, 22 months old. Systems and Networks administration

Helpdesk Technician L1 & L2 (ITIL)

BTS SIO SISR session 2019 obtained

Network Management OSI 2 and 3

> Configuration of switchs: 802.1Q, 802.1x, SSH access, LACP and PaPG 802.3ad, STP 802.1D

> Configuration of routers: DDOS attack, Flood attack, Back-port, routing sub-VLAN

> Securisation of Switchs and routers :DHCP snooping, arp snooping, port-security, Fragment Attack, DDOS

> 3 level model aknowledgement : Core, Distribution, Access, BGP)

> Network connectivity and characteristics of equipments (Standards Mdix, optical fiber, copper, ISO EN 50173, ISO 11801).

> Diagnostiques réseaux (Captures Wireshark, tcpdump, logs systèmes, SSH)

> Mise en place ToIP, AP 802.an, Jumbo Frame over MTU UNIX, FreeBSD Administration

> Scripting bash

> User accounts management

> Supervision:GLPI, Check_MK, Centreon, monitoring, PRA et PCS, optimisation MEHARI, SNMP, WMI, JMX

> HIDS, NIDS

> Netfilter: filtering and forward, NAT/PAT, Prerouting, postrouting

> PFSense: firewall rules settings, forwarding NAT/PAT, IPSEC tunneling, iPXE and FOG deployement with BootTP, routing rules

> Clustering (Fail-Over, Load-balancing)

> SQL code with MySQL, MariaDB, PostGRESQL

> Configuration of a proxy, reverse Proxy, DNS, TFTP, serveur et relais DHCP,

> Configuration of a backup system (NAS, SAN)

> Connexion PEAP/CHAP with Kerberos, Samba services Windows système administration

> Active Directory forest, Group Policy Objects, LDAP Radius, 802.1ax PEAP/CHAP, Organisation Units Globals aknowledges

> Technology watch : lemondeinformatique.fr, cert-fr, le journal du hacker, ZDNET

> RFC 1918, well-knowns ports, plages d’adresses IPv6 (NDP :FE80/10, 2000/3, FD00/8, FF00/8)

> Connaissances législatives de la Loi n 78-17 du 6 janvier 1978 relative à l'informatique, aux fichiers et aux libertés

> RGPD de juillet 2018

> Technology Mimo, OFDM, CSMA/CD ou CA en wifi,

> Components assembly PC and servers, anti-static .

> WAN Internet Supplier infrastructure

> Object coding (private, public and shared members, void, functions, tests) in C++,C# et Python with Code::Block, KDEvellop and events coding in c# with Visual Studio.

> WEB : HTML5, PHP notions, cookies, SSL certificates creation and configuration, WYSIWYG editor, frames The whole aknowledges named above is destined to have a global and coherent approach of the whole set of infrastructure to guarante the best Service Level Agreement in compliance with the traceability and confidentiality of the users and the datas.

Working experiences in networks and systems administration 2019 : Work experience during 5 weeks at the Integration and Hosting Office of the Montpellier Educationnal Minister.

My mission was to create a POC of an openSource WIFI captive portal in order to supply an internet connexion for outter intervenants with the council of my mentor.

> Participation to the annual conference of the organization.

> Mapping of the networks of the model of a college establishement

> Setting OSI 2 802.1q of a Wifi D-LINK L3 controller to integrate the UNIX solution.

> Creation of a virtual machine under Mageia 6 for the installation of the UNIX solution.

> Setting of the virtual Switch de l’ESXi and IP adressing of the differents sub-networks (VM, Wifi Hotspot, virtual ports of AMON(proxy included in the EOLE bundle and Mageia)

> Preparameterizing of the web page php for the creation of the voucher concerning the bandwith, the upload and download per user bandwidth, limit the max size of downladed files)

> Minors adaptations of the visual interface on the php page to make easiest and fastest the voucher creation for individual or/and group registration.

> Minors adaptations of the firewall rules and Lighttpd config file to be able to remote administrate the VM for responsables.

> IPSec tunneling between a LDAP directory and VM to supply RADIUS service

> Upgrade of the ESXi from 6.0 to 6.5 with the prepackaged ISO of the manufacturer

> To address to my working partner about evolution of the POC, about the comparisons of the differents possible UNIX solutions, presentation of the documentation I wrote under Confluence (Wiki used by Information System Management Office).

> Introduction about the Scribe and the Seth modules of the EOLE stack (Université de Dijon). 2018 : Working experience at Syloé in Montpellier, an outsourcing company

> Creation of precedure to implemant the framasoft.org solutions into the Syloé’s infrastructure (Srumblr, Jitsi, DokuWiki, Framadate, LUFI, svgEDIT, Framaestro, OwnCloud ) using only PostgreSQL .

> Writting an article to present the social group Chatons.org and the Framasoft.org services

> Creation of an automatization script to install/upgrade Nginx the lasts versions of both published (auto detected) compiled with the ModSecurity firewall from the sources packages. It backup the web site datas and perform automatically a restoration if the upgrade has failed). Inform responsable manager if the process has failed or has been successfull.

> Setting the shorewall firewall on the test machine.

> Has needed he reading od technical documentation and How-tos, forums in some cases of problems.

> Learning of my mentor to initiate on IPSec tunneling with PFSense

> Network mapping about the DRBD functioning

Other personnal working experience not related with I.T. 2017-2019 : Gardenning by my own account

2015-2017 : Organic vegetables producer in local markets, plantation of trees to increase biodiversity and feels on the place

2012-2015 : Worker in construction firm in Montpellier, in France in temporary work. 2011 : Determined End Date contract : Mission executer for Terroirs et Cultures for Agricultural cooperative Univert in organic farming in Saint-Gilles(30) 2010-2011 : CIF CDD Skills certificate in alternance in organic farming and own maketing. 2008-2009 : Temporary work for Soldive de Marsillargues(34), melons producer 2008-2009 : Temporary work for various company of differents activities sectors. 2007-2008 : Indetermined End Date contracct : Order Picker in the central distribution warehouse. 2006 : Temporary work for Soldive de Marsillargues(34), melons producer 2005 : BTS production horticole (niveau) en alternance (Arc en fleur à Saint-Christol) 2002 : BAC Sciences and Laboratory Methods (Sciences et Techniques de Laboratoire) ENGLISH

Européen Level B2 (good) : spoken, written and read, listenned~ (need listenning experience) FRENCH

Langue maternelle

MUSIC : Deadmau5, Rocky-Chase the cool, The Midnight-We move forward and all, Justin Hurwitz-The landing, Rob Dougan-Clubbed to death, Michel Sembello-Maniac, Eros Ramazzotti-Cose Della Vita (with Tina Turner), Maître Grims-Tu vas me manquer and many others :)

Free Time, leasure activities

Dad, walks, run, VTT, I.TS, Ancient Age buildings, Nature and beach, DIY, Organic garden, ecology, stars.

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