Security: Basic OS Security: Difference between revisions

From OnnoCenterWiki
Jump to navigationJump to search
Onnowpurbo (talk | contribs)
Onnowpurbo (talk | contribs)
 
(4 intermediate revisions by the same user not shown)
Line 8: Line 8:
  netstat -ntlupa
  netstat -ntlupa


* check daemon
* check daemon, di Ubuntu, bisa menggunakan
 
apt-get install sysv-rc-conf
sysv-rc-conf --list | grep '3:on'


chkconfig --list | grep '3:on'
  service serviceName stop
  service serviceName stop
  chkconfig serviceName off
  sysv-rc-conf serviceName off
 
Alternatif perintah yang menarik
 
sysv-rc-conf apache2 on
sysv-rc-conf --list apache2
 
Alternatif perintah lain
 
update-rc.d <service> defaults
update-rc.d <service> start 20 3 4 5
update-rc.d -f <service> remove


==Files Security==
==Files Security==
Line 18: Line 31:
* File Permission
* File Permission


  chmod
  [[chmod]]


* File Owner
* File Owner


  chown
  [[chown]]


* File Encryption
* File Encryption
Line 56: Line 69:
  /etc/init.d/smbd stop
  /etc/init.d/smbd stop
  iptables block
  iptables block
==Password==
User Account dan Kebijakan Password Kuat
* Umur Password
* Paksa Ubah Password
* Pembatasan Penggunaan Password Lama
* Kunci Account User setelah beberapa kali gagal Login
* Verifikasi tidak ada Account dengan password kosong?
* Pastikan tidak ada Account Non-Root yang mempunyai UID 0
Baca2 [[20 Linux Server Hardening Security Tips]]


==Memory==
==Memory==

Latest revision as of 21:41, 12 June 2017

Disable Services

  • Remote Desktop Disable
  • check active port
nmap -sT -O localhost
netstat -tulpn
netstat -ntlupa
  • check daemon, di Ubuntu, bisa menggunakan
apt-get install sysv-rc-conf
sysv-rc-conf --list | grep '3:on'
service serviceName stop
sysv-rc-conf serviceName off

Alternatif perintah yang menarik

sysv-rc-conf apache2 on
sysv-rc-conf --list apache2

Alternatif perintah lain

update-rc.d <service> defaults
update-rc.d <service> start 20 3 4 5
update-rc.d -f <service> remove

Files Security

  • File Permission
chmod
  • File Owner
chown
  • File Encryption


  • Harddisk Partition
df -h   make sure separate partition
  • Find World Writeable files
find / -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print
  • Find Noowner files
find / -xdev \( -nouser -o -nogroup \) -print

File Transfer

  • Disable FTP
/etc/init.d/ftp stop
iptables block
  • Biasakan pakai SCP
scp

Sharing Files

  • Enable / Disable SMB
/etc/init.d/smbd stop
iptables block


Password

User Account dan Kebijakan Password Kuat

  • Umur Password
  • Paksa Ubah Password
  • Pembatasan Penggunaan Password Lama
  • Kunci Account User setelah beberapa kali gagal Login
  • Verifikasi tidak ada Account dengan password kosong?
  • Pastikan tidak ada Account Non-Root yang mempunyai UID 0

Baca2 20 Linux Server Hardening Security Tips

Memory