Published November 10, 2024 | Version v108
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Operativni sustavi i računalne mreže - Linux u primjeni

Creators

  • 1. IT Specialist

Description

This book (in Croatian) covers operating systems and Linux, Storage and Network (protocols & standards), virtualization and Linux containers. Since this book is in light but constant review and update process, please use the most recent version.

This book may also be used to prepare/learn or extend the knowledge needed for the next certifications:

  • Red Hat®:
    • Certified System Administrator (RHCSA®).
    • Certified Architect (RHCA®) .
  • Linux Professional Institute®:
    • LPIC-1.
    • LPIC-2.
    • LPIC-3*.
  • Linux Foundation®:
    • Linux Foundation Certified IT Associate (LFCA).
    • Linux Foundation Certified System Administrator (LFCS). 

 

The book covers the following chapters (in summary):

  • Principles of operating systems: basic mechanisms and way of working of operating systems.
  • System administration:
    • Work with user accounts and groups.
    • System security configuration (file permissions, timestamps, ACL, SELinux ).
  • Service management (installation, configuration , ...)
  • Software/package management.
  • Archiving and backup.
  • Process management.
  • Computer components and optimizations:
    • Motherboard and chipset.
    • Buses: PCI, PCI-X, PCI Express, USB, SMBus/I2C
    • IRQ and DMA, ...
    • CPU and RAM
  • CPU: SMP and NUMA.
  • Kernel:
    • Purpose and design.
    • Upgrade, configuration, compiling the new one, ...
  • Virtual memory subsystem, RAM memory, and optimizations:
    • Types of RAM memory.
    • Memory management and virtual memory subsystem.
    • Out of memory (OOM) and optimizations.
  • Data storage and disk subsystems:
    • Types of disk drives and standards.
    • Disk geometry and logical scheme.
    • Block devices and partitioning, disk formats, and filesystems.
    • RAID (hardware and sofiware) and LVM2
    • NAS/SAN systems:
      • iSCSI and Fibre Channel
    • Disk I/O subsystems and optimizations.
      • Disk I/O performance and monitoring 
  • System analysis and optimizations (perf, strace, ltrace, dstat).
  • Working with log files and services.
  • Kernel dump/core dump.
  • Computer networks:
    • Networking concepts and protocols (topology, CSMA/CD, Bridging, OSI model):
      • OSI 2 model and protocols (Bridges, ARP, Flow control, STP, LACP, LLDP, OSI 2 network interfaces,... ).
      • OSI 3 model and protocols (IP, QoS, IP Fragmentation, TTL, MTU, NAT, Redundancy and VRRP, ...).
    • Transport layer: UDP and TCP (SYN, ACK, SACK, TCP Window, Window scaling, congestion control, PSH&URG, ... ).
    • Network in Linux (configuration and details).
  • Network services and protocols: DHCP, TFTP, DNS, telnet and SSH, HTTP/HTTPS, NTP, Proxy.
  • Work with the firewall:
    • iptables
    • ipset
    • nftables
    • eBPF
  • Namespaces and isolation
  • Virtualization and Linux containers:
    • LXC 
    • Podman
  • Many extras: list of Linux commands, list of terms, list of important files, interface bandwidth, ...
  • Advanced and expert chapters as an addition to all the mentioned chapters and units.
  • Posters covering major chapters of the book (with links to the posters at the end of the book). 

 

Who may use this book:

  • Books cover the work in the Linux text environment (shell/CLI). 
  • It is intended for everyone who has very little or no experience at all with Linux.
  • Additionally, almost every major section of the book contains advanced chapters, so the book can be useful and advanced users in order to understand or optimize the Linux system in more detail.
  • Furthermore, many of the advanced chapters have been further expanded, for those looking for expert details and examples. Therefore, this book can also be used for practical learning about the principles of operation of operating systems in general, provided that of course we are talking about Linux and we offer examples from Linux, through which it is much better to get to know each operating system and its mechanisms.
  • This book can be used by students, to learn the principles of operating systems, people who are new to it and want to get familiar with Linux, and those who want to deepen their knowledge of Linux, or even experts, who occasionally want to recall some advanced Linux components.
  • Additionally, everyone who wants to get to know the basics of computer networks and the details of the TCP/IP protocol, as well as those who are interested in configuration and expert details and possible optimizations at the network disk or other level operating system subsystem, will find this book useful. The book begins with examples of the use of various useful programs (commands) that are specific to the whole being discussed and is expanded with theory and more advanced examples. This was the guiding principle for most chapters where that order or mode was applicable. And at the very end, chapters were added in which we introduce virtualization and Linux containers and security technologies and notes; from theory to practical examples in Linux.

Notes (Croatian)

License of this book is Creative Commons BY-SA (CC BY-SA 4)

Files

Operativni sustavi i računalne mreže - Linux u primjeni.pdf

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Additional details

Related works

Is identical to
Book: 978-953-59438-2-2 (ISBN)

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  • Linux man pages for the next commands: agetty, alias, anacron, apropos, at, arp, atq, atrm, authconfig, authselect, arping, atop, awk, base64, bash, bg, blkparse, blkid, break, brctl, buildah, btt, bzip2, bunzip2, bzcat, cal, case, cat, capsh, cd, cfdisk, cgdisk, chage, chgrp, chattr, chmod, chkconfig, chown, chroot, chrt, chpasswd, cksum, cmp, column, comm, compgen, continue, cp, cpio, crontab, cut, curl, date, dd, debugfs, depmod, df, dhclient, diff, dig, dkms, dmidecode, dmsetup, dmesg, dnsmasq, dnf, dracut, dstat, du, dumpe2fs, dumpkeys, e2fsck, echo, edac-util, edquota, egrep, else, env, ethtool, exec, exit, expand, export, expect, fallocate, fdisk, find, findmnt, fg, fgrep, finger, file, fixfiles, for, free, fsck, fstrim, fuser, gdisk, getcap, getconf, getent, getfacl, getsebool, grep, groupadd, groupdel, groupmod, groups, growpart, gzip, gunzip, head, hexdump, hdparm, hostname, host, htop, httpd, hwclock, i2cdetect,id, if, ifconfig , ifup, ifdown, ifenslave, insmod, init, intel-microcode2ucode, ionice, iostat, ip, ip-address, ip-link, ip-maddress, ip-neighbour, ip-route, ip-rule, ip-tunnel, ip-vrf, ip-xfrm, ipcs, iperf3, ipmitool, ipset, iptables, ipvsadm, ipvsadm-save, irqtop, iscsiadm, iucode_tool, join, journalctl, kexec, kdump, keepalived, kill, killall, last, ldconfig, ldd, less, links, lldpcli, ln, lnstat, localectl, loadkeys, locale, locate, login, loginctl, logger, lsattr, lsinitrd, lsblk, lslogins, lsmod, lsns, lsof, lpr, lpq, lprm, ls, lsirq, lspci, lsscsi, lstopo, lsusb, ltrace, lvcreate, lvextend, lvremove, lvs, lvscan, lxc-attach, lxc- checkconfig, lxc-create, lxc-destroy, lxc-info, lxc-ls, lxc-stop, lxc-start, lxc-top, mail, man, manpath, make, md5sum, merge, mc, mcelog, mdadm, mkdir, mkfs, mkfs.xfs, mkfs.btrfs, mkfifo, mktemp, mknod, mkswap, modinfo, modprobe, more, mount, mpstat, mt, mv, nl, nc, ncat, netstat, nice, nft, nfsiostat, nfsstat, nfsiostat-sysstat, nohup, nslookup, nstat, ntpdate, ntpq, numactl, numastat, numatop, nvme, openssl, ovs-vsctl, perf, partprobe, passwd, paste, pine, pidof, pidstat, ping, pldd, pmap, podman, printenv, prlimit, ps, pvcreate, pvs, pwd, python, rasdaemon, ras-mc-ctl, read, readelf, rear, renice, resize2fs, readlink, readonly, reboot, reset, restorecon, route, rsync, rm, rmdir, rmmod, rpm, sar, screen, sed, seinfo, seekwatcher, semanage, semodule, sensors, sensors- detect, sestatus, setcap, setenforce, setsebool, seq, service, sestatus, set, setenforce, setfacl, setpci, shutdown, sha1sum, sha256sum, sha512sum, shopt, showmount, skopeo, slabinfo, slabtop, sleep, sntp, sos,sort, source, split, ss, stat, stty, su, sudo, ssh, ssh-keygen, ssh-copy- id, strace, sync, swapon, swapoff, sysctl, syslinux, systemctl, systool, sys-unconfig, tail, tar, targetcli, taskset, tc, tftp, tftpd, timedatectl, toe, top, tput, tr, tracepath, traceroute, trap, truncate, tty, toe, touch, tsort, type, udevadm, ulimit, umount, unalias, uname, uniq, unset, unshare, until, unsquashfs, unzip, unxz, updatedb, update-pciids, uptime, useradd, userdel, usermod, uuidgen, vgcreate, vgdisplay, vgextend, vgreduce, vgremove, vgs, vi, vim, vimdiff, virt- sysprep, vmstat, visudo, vtysh, w, wall, watch, wc, wget, whatis, whereis, which, while, whoami, whois, who, write, xargs, xz, yum, zcat, zip, zless, quotacheck, quotaoff, quotaon, qemu-img.
  • Special Linux man pages used as sources of the information: man 2 idle,man 2 prctl,man2 seccomp, man 4 msr, man 5 acl,man 5 aliases, man 5 anacrontab,man 5 autofs,man 5 charmap,man 5 core,man 5 crontab, man 5 depmod.d,man 5 dnf.conf,man 5 dracut.conf,man 5 e2fsck.conf,man 5 elf, man 5 ethers,man 5 exports,man 5 ext4,man 5 filesystems,man 5 fstab,man 5 group, man 5 group.conf,man 5 gshadow,man irqtop,man 5 hosts.allow,man 5 host.conf, man 5 hosts.deny,man 5 hosts_options,man 5 hostname,man 5 hosts,man 5 issue, man 5 journald.conf,man 5 keymaps,man 5 ldap.conf,man 5 limits.conf,man 5 locale, man 5 locale.conf,man 5 localtime,man 5 login.defs,man 5 logrotate.conf,man lsirq, man 5 lvm.conf,man 5 lxc.conf,man 5 machine-id,man 5 mdadm.conf, man 5 mke2fs.conf,man 5 modprobe.d,man 5 modules-load.d,man 5 modules.dep, man 5 networks,man 5 nfs,man 5 nfs.conf,man 5 nfsmount.conf, man 5 nologin, man 5 nscd.conf,man 5 nss,man 5 nsswitch.conf,man 5 os-release,man 5 ovsdb, man 5 pam.conf, man 5 PAM_ENV.CONF,man 5 passwd,man 5 pci.ids, man 5 proc (procfs),man 5 protocols,man 5 resolv.conf,man 5 rpc,man 5 selinux_config, man 5 semanage.conf, man 5 sensors.conf,man 5 services,man 5 sestatus.conf, man 5 shadow,man 5 shells,man 5 slabinfo,man 5 smtpd.conf,man 5 sos.conf, man 5 ssh_config, man 5 sshd_config,man 5 subuid,man 5 subgid,man 5 sudo.conf, man 5 sudoers,man 5 sysctl.conf,man 5 sysctl.d,man 5 sysstat, man 5 system.conf.d, man 5 term,man 5 termcap,man 5 terminfo,man 5 tmpfiles.d,man 5 tmpfs, man 5 ttytype,man 5 tzfile,man 5 udev.conf,man 5 utmp,man 5 xfs,man 5 yum.conf.
  • Special Linux man pages used as sources of the informations: man 7 aio,man 7 arp,man 7 ascii,man 7 attributes,man 7 boot,man 7 bootparam, man 7 bootup,man 7 capabilities,man 7 cgroup_namespaces,man 7 cgroups,man 7 charsets, man 7 cpuset,man 7 daemon,man 7 environ,man 7 fanotify,man 7 fifo, man 7 file-hierarchy,man 7 libc,man 7 glob,man 7 hostname,man 7 hwdb,man 7 icmp, man 7 inode,man 7 inotify,man 7 io_uring,man 7 ip,man 7 ipc_namespaces, man 7 ipv6,man 7 8859-2,man 7 kernel-command-line,man 7 locale,man 7 lvmthin, man 7 lvmraid,man 7 lxc,man 7 mailaddr,man 7 mq_overview,man 7 namespaces, man 7 netdevice,man 7 netlink,man 7 network_namespaces,man 7 nfsd,man 7 numa, man 7 ovsdb-server,man 7 packet,man 7 path_resolution,man 7 pcilib, man 7 pid_namespaces,man 7 pipe,man 7 posixoptions,man 7 pthreads,man 7 queue, man 7 random,man 7 raw,man 7 regex,man 7 rtnetlink,man 7 sched,man 7 signal, man 7 socket,man 7 symlink,man 7 sysvipc,man 7 tcp,man 7 term,man 7 time, man 7 udev,man 7 udp,man 7 unicode,man 7 unix,man 7 uri,man 7 UTF-8,man 7 vdso, man 7 xattr, man 8 iscsid.
  • RFC documents used as a sources of the informations: RFC 561, RFC 768, RFC 783, RFC 788, RFC790, RFC791, RFC793, RFC815, RFC826, RFC879, RFC882, RFC883, RFC 894, RFC906, RFC 917, RFC951, RFC974, RFC1034, RFC1035, RFC1063, RFC1072, RFC1094, RFC1108, RFC1112, RFC1191, RFC1122, RFC 1213, RFC1256, RFC1305, RFC1323, RFC 1349, RFC1393, RFC 1497, RFC 1518, RFC 1519, RFC 1652, RFC1813, RFC 1869, RFC1912, RFC 1918, RFC 1928, RFC 1995, RFC 1996, RFC2001, RFC2018, RFC2030, RFC2113, RFC2131, RFC2132, RFC 2136, RFC2181, RFC2236, RFC2281, RFC 2308, RFC2338, RFC2474, RFC 2476, RFC2544, RFC 2554, RFC2581, RFC 2616 RFC 2597, RFC2663, RFC2883, RFC 2939, RFC 2965, RFC3010, RFC 3164, RFC3168, RFC 3195, RFC 3258, RFC3260, RFC3376, RFC3397, RFC3442, RFC3513, RFC3530, RFC 3549, RFC 3596, RFC3649, RFC 3720, RFC3768, RFC 3828, RFC 3942, RFC 4122, RFC4251, RFC4252, RFC4253, RFC4254, RFC4330, RFC 4361, RFC 4594, RFC4604, RFC4821, RFC 4833, RFC 5071, RFC 5246, RFC5321, RFC 5322, RFC 5424, RFC 5425, RFC 5482, RFC 5494, RFC5656, RFC5661, RFC5681, RFC5735, RFC5771, RFC5798, RFC 5865, RFC5905, RFC 6056, RFC6093, RFC6298, RFC 6335, RFC 6530, RFC 6531, RFC 6532, RFC 6533,RFC 6587, RFC 6598, RFC6672, RFC6838, RFC6814, RFC 6854, RFC6864, RFC 7230, RFC 7231, RFC7348, RFC 7505, RFC7530, RFC7637, RFC7822, RFC7862, RFC8201, RFC 8314, RFC 8446, RFC 8622, RFC8878, RFC 8926, RFC 9051, RFC 9293.
  • Industrial standards used as a sources of the informations: EN 50173, EN 50174, ISO/IEC 11801, ITU-T G.652A/B/C/D/, ITU-T G.654, ITU-T /G.656, ITU-T G.657, ANSI/TIA/EIA-568-B, ANSI/TIA/EIA-569, ANSI/TIA/EIA-570, ANSI/TIA/EIA-606, ANSI/TIA/EIA-607, RIPE-203 , ISO 639-1, ISO 3166-1, ISO 8859, ISO 8859-1, ISO 8859-2, Windows 1250.
  • IEEE 802.1 used as sources of the informations: 802.1ad [QinQ]), 802.1D, 802.1Q (VLAN), 802.1s, 802.1X, 802.1AB (LLDP), 802.1AC, 802.1AE,802.1AX, 802.1p, 802.1D
  • IEEE 802.3. used as a sources of the informations: 802.3i, 802.3j, 802.3u, 802.3z, 802.3ab,, 802.3ae, 802.3an, 802.3ba, 802.3bm, 802.3bs, 802.3bz, 802.3cc, 802.3bq, 802.3ba, 802.3bg, 802.3bj, 802.3bm, 802.3cd, 802.3x, 802.3ac (with 802.1Q and 802.1p), 802.3ad, 802.3at, 802.3ax 802.3az, 802.3bt, …
  • IEEE 802.11 used as a sources of the informations: 802.11a, 802.11b, 802.11g, 802.11n,802.11ac, 802.11ax, …
  • RFC documents of IANA used as a sources of the informations; RFC 322, RFC 433, RFC 790, RFC 1083, RFC 1174, RFC 2468, RFC 2860, RFC 7020.
  • RFC documents of RIPE used as a sources of the informations: RFC 790, RFC 1166.
  • (2010) The Linux Programming Interface, Michael Kerris, ISBN: 978-1-59327-220-3
  • (2024) Open Source Essentials, Linux Professional Institute, v.1.0.
  • (2024) Linux Essentials, Linux Professional Institute, v.1.6.
  • (2024) LPIC-1 Exam 101, Linux Professional Institute, v.5.0.
  • (2024) LPIC-1 Exam 102, Linux Professional Institute, v.5.0.
  • Additional sources of the informations as defined in the book (PDF)