consolidate all repos to one for archive

semester_4/sistemska_administracija/Naloga_1/demo_imenik_26097.sh

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+#!/bin/bash
+
+# dodajanje stikov
+./imenik_26097.sh -dodaj -ime "Nikola" -priimek "Petrov" -naslov "Ulica cesta" -posta 2000 -kraj "Maribor" -tel 123456789
+./imenik_26097.sh -dodaj -ime "Zan" -priimek "Pols" -naslov "Lika" -posta 2000 -kraj "Maribor" -tel 123456789
+./imenik_26097.sh -dodaj -ime "Nejc" -priimek "Kranjc" -naslov "Gosposvedska cesta" -posta 2000 -kraj "Maribor" -tel 123456789
+./imenik_26097.sh -dodaj -ime "Jan" -priimek "Polo" -naslov "HHAA" -posta 459 -kraj "Ljubljana" -tel 123456789
+./imenik_26097.sh -dodaj -ime "Jan" -priimek "Polo"
+
+# iskanje stikov
+./imenik_26097.sh -isci -ime "Jan"
+./imenik_26097.sh -isci -posta 459
+./imenik_26097.sh -isci -ime "Nikola" -priimek "Petrov"
+
+# ker so id nakjucni ga na tak nacin pridobi, zbran je tretji v tem primeru
+id=$(awk -F";" 'NR==3{print $1}' "imenik_26097.dat")
+
+# spreminjanje stikov
+./imenik_26097.sh -uredi -id "$id" -ime "IME"
+./imenik_26097.sh -uredi -id "$id" -priimek "PRIIMEK"
+
+# brisanje stikov
+./imenik_26097.sh -izbrisi -id "$id"  

semester_4/sistemska_administracija/Naloga_1/imenik_26097.sh

@@ -0,0 +1,119 @@
+#!/bin/bash
+
+input=("" "" "" "" "" "" "")
+
+myFile=imenik_26097.dat
+
+function potrdi(){
+    read -p "Potrdi? y/n : " -n 1 -r
+    if [[ $REPLY != "y" ]]; then
+        echo ""
+        echo "Prekinjeno!"
+        exit 1
+    fi
+    echo ""
+}
+
+function isciPod(){
+    formString=$(printf '%s;' "${input[@]/#/.*}")
+    
+    if grep -q "$formString" "$myFile"; then
+        grep "$formString" "$myFile"
+    else
+        echo "Ni kontakta"
+    fi
+}
+
+function urediPod(){
+
+    # The '-F' option specifies the field separator as a semicolon and the '-v' option creates a variable 'ref' with the value of the first element of the 'input' array.
+    # The pattern to search for is '$1==ref', which means the first field of the line (i.e., the part of the line before the first semicolon) should match the value of 'ref'.
+    searchedLine=$(awk -F';' -v ref="${input[0]}" '$1==ref {print}' $myFile)
+    if [[ $searchedLine == "" ]]; then
+        echo "ERROR: Ni osebe z tem id"
+        exit 1
+    fi
+
+    IFS=';' read -r -a array <<< "$searchedLine"
+    for i in "${!input[@]}"; do
+        [[ "${input[$i]}" != "" ]] && array[$i]="${input[$i]}"
+    done
+    newLine=$(IFS=';' ; echo "${array[*]}")
+
+    # s substitution
+    # g all occurrences of the searched string should be replaced
+    sed -i "s|${searchedLine}|${newLine}|g" $myFile
+    echo "Urejeno uspesno."
+}
+
+function odstraniPod(){
+    #-i modify the file in-place.
+    # /d delete
+    sed -i "/${input[0]};/d" "$myFile"
+    echo "Kontakt zbrisan."
+}
+
+function dodajPod(){
+
+    input[0]=$(($RANDOM % 99999 + 1))
+
+    # Set any empty input values to "PRAZNO"
+    for i in "${!input[@]}"
+    do
+        if [[ -z "${input[$i]}" ]]; then
+            input[$i]="PRAZNO"
+        fi
+    done
+
+    # Append each input value to the file separated by ';'
+    printf "%s;" "${input[@]}" >> $myFile
+    echo "" >> $myFile
+
+    # Print success message
+    echo "Kontakt dodan ${input[@]}"
+}
+
+# The `! -f` operator checks if the file does not exist.
+if [ ! -f "$myFile" ]; then
+    echo "" > $myFile
+fi
+
+selection=$1
+
+shift
+while [ $# -gt 0 ] ; do
+    case $1 in
+        -id) input[0]="$2" ;;
+        -ime) input[1]="$2" ;;
+        -priimek) input[2]="$2" ;;
+        -naslov) input[3]="$2" ;;
+        -posta) input[4]="$2" ;;
+        -kraj) input[5]="$2" ;;
+        -tel) input[6]="$2" ;;
+        *)
+            echo "ERROR napacen kljuc $1"
+            exit 1 
+            ;;
+    esac
+    shift
+    shift
+done
+
+potrdi
+
+# izbiranje funkcije
+case $selection in
+    -dodaj) 
+        dodajPod
+     "$@" ;;
+    -izbrisi)
+        odstraniPod "$@" ;;
+    -isci) 
+        isciPod "$@" ;;
+    -uredi)
+        urediPod "$@" ;;
+    *)
+        echo "ERROR napacen ukaz $selection" 
+        exit 1
+        ;;
+esac

semester_4/sistemska_administracija/Naloga_4/demo_fs-26097.sh

@@ -0,0 +1,14 @@
+./fs-26097.sh -izpis
+./fs-26097.sh -ustvari /dev/sdb ext2
+./fs-26097.sh -posodobi /dev/sdb1
+mkdir ~/data
+./fs-26097.sh -priklopi /dev/sdb1 ~/data
+
+./fs-26097.sh -ustvariraid /dev/sdc /dev/sdd
+./fs-26097.sh -izpisraid
+./fs-26097.sh -hotspare /dev/sde
+./fs-26097.sh -izpisraid
+
+mkdir ~/raid
+./fs-26097.sh -filesistem /dev/md0
+./fs-26097.sh -priklopi /dev/md0 ~/raid

semester_4/sistemska_administracija/Naloga_4/fs-26097.sh

@@ -0,0 +1,139 @@
+#!/bin/bash
+
+# sudo mdadm -S /dev/md0
+
+
+function print(){
+    #izpisemo diske z lsblk
+    lsblk
+}
+
+function create(){
+
+    if [ ! "$2" ] || [ ! "$3" ]; then
+        echo "Use: $1 <disk> <file-system-type>"
+        exit 1
+    fi
+
+    #dodamo label gpt drivu
+    parted -s $2 mklabel gpt
+
+    #ustvarimo particijo 50% velikosti
+    parted -s "$2" mkpart primary 1 50%
+
+    #ustvarimo particijo 50% velikosti
+    parted -s "$2" mkpart primary 50% -- -1
+
+    #ustvarimo datotecni sistem
+    echo -e "y\n" | mkfs.$3 ${2}1
+    
+    #ustvarimo datotecni sistem
+    echo -e "y\n" | mkfs.$3 ${2}2
+}
+
+function fs(){
+    if [ ! "$2" ] || [ ! "$3" ]; then
+        echo "Use: $1 <disk> <file-system-type>"
+        exit 1
+    fi
+    #dodamo filesistem
+    echo -e "y\n" | mkfs.$3 "$2"
+}
+
+function attach(){
+    if [ ! "$2" ] || [ ! "$3" ]; then
+        echo "Use: $1 <partition> <mount point>"
+        exit 1
+    fi
+    #priklopimo $2 particijo v $3 mount point
+    mount $2 $3
+}
+
+function update(){
+    if [ ! "$2" ]; then
+        echo "Use: $1 <partiton>"
+        exit 1
+    fi
+    #dodamo razsiritve ext4
+    tune2fs -O extents,uninit_bg,huge_file $2
+
+    #preverimo zbircni sistem
+    e2fsck -f $2
+
+    #dodamo recicle bin
+    tune2fs -j $2
+}
+
+function createRaid(){
+    if [ ! "$2" ] || [ ! "$3" ]; then
+        echo "Use: $1 <partition 1> <partition 2>"
+        exit 1
+    fi
+
+    #ustvari particjo z labelo msdos in dovolimo raid
+    parted -s $2 mklabel msdos
+    parted -s $2 mkpart primary 1 -- -1
+    parted -s $2 set 1 raid on
+
+    parted -s $3 mklabel msdos
+    parted -s $3 mkpart primary 1 -- -1
+    parted -s $3 set 1 raid on
+
+    #ustvarimo radi z imenom md0 in dodamo 2 diska v raid
+    mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2 ${2}1 ${3}1
+}
+
+function hotSpare(){
+    if [ ! "$2" ]; then
+        echo "Use: $1 <partiton>"
+        exit 1
+    fi
+
+    parted -s $2 mklabel msdos
+    parted -s $2 mkpart primary 1 -- -1
+    parted -s $2 set 1 raid on
+
+    #dodamo spare disk v raid
+    mdadm --manage /dev/md0 --add-spare ${2}1
+}
+
+function printRaid(){
+    #izpisemo detaile o raidu md0
+    mdadm --detail /dev/md0
+}
+
+function failure(){
+    if [ ! "$2" ]; then
+        echo "Use: $1 <partiton>"
+        exit 1
+    fi
+    #failamo particijo v raidu
+    mdadm --manage /dev/md0 --fail $2
+}
+
+function remove(){
+    if [ ! "$2" ]; then
+        echo "Use: $1 <partiton>"
+        exit 1
+    fi
+    #odstranimo disk iz raida
+    mdadm --manage /dev/md0 --remove $2
+}
+
+if [[ $EUID -ne 0 ]]; then
+    echo "Must be root"
+    exit 1
+fi
+
+case $1 in 
+    -izpis) print ;;
+    -ustvari) create "$@" ;;
+    -filesistem) fs "$@" ;;
+    -priklopi) attach "$@" ;;
+    -posodobi) update "$@" ;;
+    -ustvariraid) createRaid "$@" ;;
+    -hotspare) hotSpare "$@" ;;
+    -izpisraid) printRaid "$@" ;;
+    -izpad) failure "$@" ;;
+    -odstrani) remove "$@" ;;
+esac

semester_4/sistemska_administracija/Naloga_5/backup-critical.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+backup_type=$1
+backup_dir="/mnt/backup/26097"
+source_dir="/home"
+
+if [ "$backup_type" == "incremental" ]; then
+    for userdir in /home/*; do
+        rdiff-backup --include="$userdir/Maildir" --exclude="$userdir/*" $source_dir "$backup_dir/criinc"
+    done
+    
+elif [ "$backup_type" == "mirror" ]; then
+    for userdir in /home/*; do
+        rsync -va --include="$userdir/Maildir" --exclude="$userdir/*" $source_dir "$backup_dir/crimir"
+    done
+else
+    echo "Napaka: Neveljaven način izdelave kopije."
+    exit 1
+fi

semester_4/sistemska_administracija/Naloga_5/backup-other.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+backup_type=$1
+backup_dir="/mnt/backup/26097"
+source_dir="/home"
+
+if [ "$backup_type" == "incremental" ]; then
+    for userdir in /home/*; do
+        rdiff-backup --exclude="$userdir/Maildir" $source_dir "$backup_dir/othinc"
+    done
+elif [ "$backup_type" == "mirror" ]; then
+    for userdir in /home/*; do
+        rsync -va --exclude="$userdir/Maildir" $source_dir "$backup_dir/othmir"
+    done
+else
+    echo "Napaka: Neveljaven način izdelave kopije."
+    exit 1
+fi

semester_4/sistemska_administracija/Naloga_5/crontab.txt

@@ -0,0 +1,10 @@
+# Izdelava kopije kritičnih podatkov
+1 * * * * /home/nik/Sola/SA/Naloga_5/backup-critical.sh incremental
+
+#zato ker se zmotim bi rad mel opcijo da povlecem iz zgodovine
+
+
+# Izdelava kopije ostalih podatkov
+0 0 * * * /home/nik/Sola/SA/Naloga_5/backup-other.sh mirror
+
+# ne portrebujem zgodovine za ne kriticne stvari

semester_4/sistemska_administracija/Naloga_5/demo-backup.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+./backup-critical.sh incremental
+./backup-other.sh mirror
+
+./restore.sh

semester_4/sistemska_administracija/Naloga_5/restore.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+backup_criinc="/mnt/backup/26097/criinc/nik/Maildir"
+destination_criinc="/home/nik/Maildir"
+
+backup_othmir="/mnt/backup/26097/othmir"
+destination_othmir="/home/nik"
+
+if [ -d "$destination_dir" ]; then
+    read -p "POZOR: Obstojajo podatki v direktoriju $destination_dir. Nadomestim? (da/ne) " confirm
+    if [ "$confirm" != "da" ]; then
+        echo "Obnovitev prekinjena."
+        exit 1
+    fi
+fi
+
+# rsync -av $backup_othmir/ $destination_othmir
+
+rdiff-backup --force --restore-as-of now $backup_criinc $destination_criinc

semester_4/sistemska_administracija/Naloga_6/Vaja_1/net_bcast_26097.txt

@@ -0,0 +1,2 @@
+Network: 10.0.10.32
+Broadcast: 10.0.10.63

semester_4/sistemska_administracija/Naloga_6/Vaja_1/setnet_26097.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+zazeni()
+{
+    sudo netplan apply
+}
+
+# ustavi proces
+ustvari()
+{
+    sudo touch /etc/netplan/config.yaml
+
+    sudo echo "network:
+  version: 2
+  renderer: networkd
+  ethernets:
+    enp2s0:
+      dhcp4: no
+      addresses: [10.0.10.37/27]
+      gateway4: 10.0.10.33
+      nameservers:
+        addresses: [9.9.9.9]" > /etc/netplan/config.yaml
+}
+
+case $1 in
+    -zazeni) zazeni "$@" ;;
+    -ustvari) ustvari "$@" ;;
+    *) echo "napacen ukaz!" ;;
+esac

semester_4/sistemska_administracija/Naloga_6/Vaja_2/setfw_26097.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+sudo ufw enable
+
+sudo ufw status
+
+sudo ufw default allow incoming
+
+sudo ufw allow https
+
+sudo ufw allow ssh
+
+sudo ufw allow 85/tcp
+
+sudo ufw allow 888/tcp
+
+sudo ufw allow 8085:8095/udp
+
+sudo ufw allow from 10.10.0.39
+
+sudo ufw allow from 10.30.0.0/24
+
+sed -i 's/-A ufw-before-input -p icmp --icmp-type echo-request -j ACCEPT/-A ufw-before-input -p icmp --icmp-type echo-request -j DROP/g' /etc/ufw/before.rules
+
+sudo ufw status

semester_4/sistemska_administracija/Naloga_7/test_26097.txt

@@ -0,0 +1,69 @@
+/tmp/pomembni_projekt/:
+total 16
+drwxrwxr-x+ 2 ps6 progskupina_26097 4096 May 25 23:33 projektA
+drwxrwxr-x+ 2 ps6 progskupina_26097 4096 May 25 23:33 projektB
+drwxrw-r-x+ 2 ps6 progskupina_26097 4096 May 25 23:33 projektC
+drwxrwxr-x+ 2 ps6 progskupina_26097 4096 May 25 23:33 testi
+
+/tmp/pomembni_projekt/projektA:
+total 0
+
+/tmp/pomembni_projekt/projektB:
+total 0
+
+/tmp/pomembni_projekt/projektC:
+total 0
+
+/tmp/pomembni_projekt/testi:
+total 0
+
+# file: tmp/pomembni_projekt/
+# owner: ps6
+# group: progskupina_26097
+user::rwx
+group::r-x
+other::r-x
+
+# file: tmp/pomembni_projekt//projektC
+# owner: ps6
+# group: progskupina_26097
+user::rwx
+group::r-x	#effective:r--
+mask::rw-
+other::r-x
+
+# file: tmp/pomembni_projekt//projektB
+# owner: ps6
+# group: progskupina_26097
+user::rwx
+user:ps2:r-x
+user:ps3:rwx
+user:ps4:rwx
+group::r-x
+mask::rwx
+other::r-x
+
+# file: tmp/pomembni_projekt//testi
+# owner: ps6
+# group: progskupina_26097
+user::rwx
+user:ps1:rwx
+user:ps2:rwx
+user:ps3:rwx
+user:ps4:rwx
+user:ps5:rwx
+user:ps6:rwx
+group::r-x
+mask::rwx
+other::r-x
+
+# file: tmp/pomembni_projekt//projektA
+# owner: ps6
+# group: progskupina_26097
+user::rwx
+user:ps1:rwx
+user:ps2:rwx
+group::r-x
+mask::rwx
+other::r-x
+

semester_4/sistemska_administracija/Naloga_7/ustvari_imenike.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+echo "mkdir"
+mkdir /tmp/pomembni_projekt
+mkdir /tmp/pomembni_projekt/projektA
+mkdir /tmp/pomembni_projekt/projektB
+mkdir /tmp/pomembni_projekt/projektC
+mkdir /tmp/pomembni_projekt/testi
+
+echo "chown"
+chown ps6:progskupina_26097 /tmp/pomembni_projekt
+chown ps6:progskupina_26097 /tmp/pomembni_projekt/projektA
+chown ps6:progskupina_26097 /tmp/pomembni_projekt/projektB
+chown ps6:progskupina_26097 /tmp/pomembni_projekt/projektC
+chown ps6:progskupina_26097 /tmp/pomembni_projekt/testi
+
+echo "m"
+setfacl -m m:rw- /tmp/pomembni_projekt/testi
+setfacl -m m:rw- /tmp/pomembni_projekt/projektA
+setfacl -m m:rw- /tmp/pomembni_projekt/projektB
+setfacl -m m:rw- /tmp/pomembni_projekt/projektC
+
+setfacl -m u:ps1:rwx /tmp/pomembni_projekt/projektA
+setfacl -m u:ps2:rwx /tmp/pomembni_projekt/projektA
+
+setfacl -m u:ps2:r-x /tmp/pomembni_projekt/projektB
+setfacl -m u:ps3:rwx /tmp/pomembni_projekt/projektB
+setfacl -m u:ps4:rwx /tmp/pomembni_projekt/projektB
+
+
+# projekt C ni vpisano pravic
+
+
+setfacl -m u:ps1:rwx /tmp/pomembni_projekt/testi
+setfacl -m u:ps2:rwx /tmp/pomembni_projekt/testi
+setfacl -m u:ps3:rwx /tmp/pomembni_projekt/testi
+setfacl -m u:ps4:rwx /tmp/pomembni_projekt/testi
+setfacl -m u:ps5:rwx /tmp/pomembni_projekt/testi
+
+setfacl -m u:ps6:rwx /tmp/pomembni_projekt/testi
+
+
+

semester_4/sistemska_administracija/Naloga_7/ustvari_uporabnike.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+sudo groupadd progskupina_26097
+
+sudo useradd -m -s /bin/bash -G progskupina_26097 ps1
+sudo useradd -m -s /bin/bash -G progskupina_26097 ps2
+sudo useradd -m -s /bin/bash -G progskupina_26097 ps3
+sudo useradd -m -s /bin/bash -G progskupina_26097 ps4
+sudo useradd -m -s /bin/bash -G progskupina_26097 ps5
+sudo useradd -m -s /bin/bash -G progskupina_26097 ps6