ORACLE | REDHAT | SOLARIS | ||
Root filesystem | / {/dev/sda1} | / {/dev/vx/dsk/rootvol} | ||
Home Directory | /export/home | /export/home {/dev/vx/dsk/home} | ||
SAMPLE CONFIGURATION FILES | ||||
Password files | /etc/passwd | /etc/passwd | ||
/etc/shadow | /etc/shadow | |||
Groups file | /etc/group | /etc/group | ||
Maximum # of user ID | 65535 | 2147483647 | ||
Allow/Deny remote login | /etc/securetty | /etc/default/login | ||
{ttyp1} | {CONSOLE=/dev/console} | |||
User nobody's id # | 99 | 60001 & 65534(nobody4) | ||
Group nobody's id # | 99 | 60002 & 65534(nogroup) | ||
Recover root password | {lilo} | boot cdrom -s | ||
control-x | mkdir /tmp/a | |||
linux S | mount /dev/c0t0d0s0 /tmp/a | |||
passwd root | vi /tmp/a/etc/shadow | |||
{grub} | ||||
c | ||||
kernel vmlinuz-2.4.9-13 single ro root=/dev/hda8 | ||||
initrd /initrd-2.4.9-13.img | ||||
boot | ||||
passwd root | ||||
Create new user | useradd | useradd | ||
Delete user | userdel | userdel | ||
List users | logins | |||
Modify user account | usermod | usermod | ||
Unique host ID | hostid | hostid | ||
Administrator | linuxconf | admintool | ||
Performance monitor | top | top | ||
System activity reporter | sar | |||
Virtual Memory statistics | vmstat | vmstat | ||
I/O statistics | iostat | |||
Error logs | dmesg | dmesg | ||
Physical RAM | 64 GB {>2.3.24} | 16TB | ||
Shared Memory | sysctl kernel.shmmax | |||
Process Data Space | 900 MB | |||
Swap device | /dev/sda2 | /dev/vx/dsk/swapvol | ||
Swap file type | partition type 82 | swap | ||
Display swap size | free | swap -l | ||
Activate Swap | swapon -a | swap -a | ||
Printer Queues | /var/spool/lpd/lp/* | /etc/lp/interfaces/* | ||
Stop LP | /etc/init.d/lpd stop | /usr/lib/lp/lpshut | ||
Start LP | /etc/init.d/lpd start | /usr/lib/lp/lpsched | ||
Submit print jobs | lpr | lp | ||
lpr | ||||
LP statistics | lpq | lpstat | ||
Remove print jobs | lprm | cancel | ||
lprm | ||||
Add printer queue | printtool | lpadmin -p pq | ||
Remove Printer queue | lpadmin -x pq | |||
Make default printer | lpadmin -d pq | |||
Network IP configuration | /etc/sysconfig/network-scripts/ | /etc/hostname.* | ||
/etc/inet/* | ||||
/etc/defaultrouter | ||||
Hosts IP addresses | /etc/hosts | /etc/inet/hosts | ||
Name service switch | /etc/nsswitch.conf | /etc/nsswitch.conf | ||
Network parameters | sysctl -a | grep net | ndd /dev/[tcp|ip] ? | ||
Routing daemon | routed | in.routed | ||
NIC Configurations | ifconfig -a | ifconfig -a | ||
Secondary IP Address | modprobe ip_alias | ifconfig hme0:1 IP up | ||
ifconfig eth0:1 IP | ||||
Login prompt | /etc/issue | BANNER @ | ||
/etc/default/telnetd | ||||
Increase the # of pseudo-terminals | cd /dev | {/etc/system} | ||
./MAKEDEV -v pty | set pt_cnt = # {SYSV} | |||
set npty = # {BSD} | ||||
{/etc/iu.ap} | ||||
ptsl 0 # ldterm ttcompat | ||||
halt | ||||
boot -r | ||||
Maximum # of ptys | 256 | 176 {BSD} | ||
3000 {SYSV} | ||||
Remote Shell | rsh | rsh | ||
YP/NIS service binder | /sbin/ypbind | /usr/lib/netsvc/yp/ypbind | ||
NFS exported | /etc/exports | /etc/dfs/dfstab | ||
/etc/dfs/sharetab | ||||
NFS Client mounted directories | /var/lib/nfs/xtab | /etc/rmtab | ||
Max File System | 2 TB | 1 TB | ||
8000 TB {vxfs} | ||||
Max File Size | 2 GB {512B block size} | 1 TB | ||
8192 GB {8KB block size} | 2 GB {=<2.5.1} | |||
Max # File Descriptors | sysctl fs.file-max | 64 K | ||
Filesystem table | /etc/fstab | /etc/vfstab | ||
Free disk blocks | df -k | df –k | ||
Device listing | cat /proc/devices | Sysdef | ||
Disk information | cat /proc/scsi/scsi0/sda/model | format -d c#t#d# | ||
format>current | ||||
format>inquiry | ||||
Disk Label | fdisk -l | Prtvtoc | ||
LVM Concepts | logical extents | sub disk | ||
logical volume | Volume | |||
Plex | ||||
volume group | disk group | |||
Journal Filesystem type | ext3 | Vxfs | ||
reiserfs | ||||
Default volume group | /dev/vx/dsk/rootdg | |||
Display volume group | vgdisplay -v | vxprint -l -g rootdg | ||
Modify physical volume | pvchange | |||
Prepare physical disk | pvcreate | Vxdiskadd | ||
List physical volume | pvdisplay | vxprint –dl | ||
Remove disk from volume group | vgreduce | vxdg rmdisk | ||
Move logical volumes to another physical volumes | pvmove | vxassist move | ||
Create volume group | vgcreate | vxdg init | ||
Remove volume group | vgremove | |||
Volume group availability | vgchange | |||
Restore volume group | vgcfgrestore | |||
Exports volume group | vgexport | vxdg deport | ||
Imports volume group | vgimport | vxdg import | ||
Volume group listing | vgscan | |||
Change logical volume characteristics | lvchange | vxedit set | ||
List logical volume | lvdisplay | vxprint –vl | ||
Make logical volume | lvcreate | vxassist make | ||
Extend logical volume | lvextend | vxassist growto | ||
Reduce logical volume | lvreduce | vxassist shrinkto | ||
Remove logical volume | lvremove | vxedit rm | ||
Prepare boot volumes | lilo | vxbootsetup | ||
Remove boot volumes | ||||
Extend File system | resize2fs | Vxva | ||
resize_reiserfs | mkfs –M | |||
Reduce/Split mirrors | lvsplit | |||
Merge mirrors | lvmerge | |||
Create mirrors | vxassist mirror | |||
Add mirrors | ||||
Create striped volumes | lvcreate -i 3 -I 64 | vxassist make vol 100mb layout=raid5 | ||
System recovery tape | ||||
Backup | tar cvf /dev/rst0 / | Ufsdump | ||
Restore | tar xvf /dev/rst0 | Ufsrestore | ||
Startup script | /etc/rc.d/rc | /etc/init.d | ||
Kernel | /boot/vmlinuz | /kernel/genunix | ||
Kernel Parameters | sysctl -a | sysdef –i | ||
Reconfigure the kernel | cd /usr/src/linux | vi /etc/system | ||
make mrproper | Reboot | |||
make menuconfig | ||||
make dep | ||||
make clean | ||||
make bzImage | ||||
make install | ||||
make modules | ||||
make modules_install | ||||
cp arch/i386/boot/bzImage /boot/vmlinuz-2.2.16 | ||||
mkinitrd /boot/initrd-2.2.16.img 2.2.16 | ||||
vi /etc/lilo.conf | ||||
lilo | ||||
List modules | lsmod | Modinfo | ||
Load module | insmod | Modload | ||
Unload module | rmmod | modunload | ||
Initialize system | netconf | sys-unconfig | ||
Physical RAM | free | Prtconf | ||
Kernel Bits | getconf LONG_BIT | isainfo –kv | ||
Crash utility | Crash | |||
Trace System Calls | strace | Truss | ||
Machine model | uname -m | uname -imp | ||
OS Level | uname -r | uname –r | ||
Run Level | runlevel | who –r | ||
Core dump files | /var/crash/`uname -n` | |||
Boot single user | {lilo} | ok boot –s | ||
control-x | ||||
linux S | ||||
{grub} | ||||
c | ||||
kernel vmlinuz-2.4.9-13 single ro root=/dev/hda8 | ||||
initrd /initrd-2.4.9-13.img | ||||
boot | ||||
Maintenance mode | ok boot -as | |||
Interrupt Key | Stop-A | |||
Return to console | ok go | |||
Timezone Management | /etc/sysconfig/clock | /etc/TIMEZONE | ||
/etc/default/init | ||||
NTP Daemon | /etc/ntp.conf | /etc/inet/ntp.conf | ||
/etc/rc.d/init.d/xntpd | /etc/init.d/xntpd | |||
Install Software | rpm -i package | Pkgadd | ||
Uninstall software | rpm -e package | Pkgrm | ||
List installed software | rpm -qa | Pkginfo | ||
Verify installed software | rpm -V package | pkginfo –i | ||
pkginfo –p | ||||
List all files | rpm -ql package | pkgchk -l package | ||
List installed patches | patchadd -p | |||
Package owner | rpm -qf file | pkgchk -l -p path | ||
SW Directory | /var/lib/rpm | /var/sadm | ||
Devices | /dev | /devices | ||
Install devices for attached peripherals | /dev/MAKEDEV | Drvconfig | ||
Devlinks | ||||
Disks | ||||
Tapes | ||||
Ports | ||||
Remove device | rem_drv | |||
Device drivers | prtconf –D | |||
CPU | cat /proc/cpuinfo | psrinfo –v | ||
List Terminal | pmadm –l | |||
Diagnostics | lspci | /usr/platform/`uname -m`/ | ||
pnpdump | sbin/prtdiag | |||
ok test-all | ||||
/opt/SUNWvts/bin/sunvts | ||||
Whole Disk | /dev/sda | /dev/c#t#d0s2 | ||
CDROM | /dev/cdrom | /dev/dsk/c#t6d0s2 | ||
CDROM file type | iso9660 | Hsfs | ||
Rewinding tape drive | /dev/rst0 { c 9 0} | /dev/rmt/0 | ||
Non-rewinding tape drive | /dev/nrst0 { c 9 128 } | /dev/rmt/0n | ||
Floppy drive | /dev/fd0 | /dev/diskette | ||
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