Michal Cieslakiewicz

Background

About Michal Cieslakiewicz

I am experienced UNIX/Linux and SAN administrator, working in this IT area since first as a System Engineer, now with Senior Specialist position. I have both deep knowledge and good practice of High Availability, Business Contingency and Disaster Recovery technologies and methodologies. My Linux skills are advanced (kernel and programs compilation, patching and packaging). I am also an Open Source enthusiast, especially Slackware Linux and OpenWrt, where I contributed some patches. My advantage is also a strong programming background. Human languages : fluent english, good swedish. Operating systems : SUN Solaris 2.6 - 10, Linux (architectures: Intel/AMD, ARM and MIPS; distros: Slackware, RedHat, CentOS, Ubuntu, Mint, OpenWrt/LEDE, Debian, Raspbian), AIX 6.1 and 7.1, OpenSolaris, OpenBSD, FreeBSD, Tru64 Server and computer hardware : IBM (Power7, x86), SUN (Sparc), Digital (Alpha), Raspberry Pi (ARM) Cluster software : Veritas Cluster Server 1.3 - 5.1 Backup : Veritas Netbackup, Tivoli Storage Manager Volume managers : Veritas Volume Manager, AIX LVM, Solaris Metadevices, Linux LVM, Digital LSM SAN : EMC midrange class arrays (Clariion, Celerra, VNX), SUN arrays, Digital arrays, HPE 3PAR arrays, Brocade FC switches Virtualization : IBM LPAR, Solaris Zones, Linux QEMU/KVM, VirtualBox, VMware, Docker and Podman containers Network security : ssh, ipchains/iptables, ipfilter, pf, RSA, SSL, Kerberos Directory services : NIS+, LDAP Other network technologies : Alteon, Wifi access point (hostap) Computer languages : UNIX shells, C/C++, PERL, TCL, assemblers (x86, MIPS, ARM), JavaScript, Lua Programming tools and compilers : GCC, Node.js, Git