Linux - Trick

By Kendy Hikaru -
Tý trick nho nhỏ:
Banner:
    /etc/issue ( before)
    /etc/motd (after)
sshd_config
    #Banner ... SSH Banner
last
    Tra ve user dang login
netstat -nlp -ntlp -nulp
    Show Listening socket
    -ant
    Show listen port va cac connect toi
lsof
    lsof -i :53
  
ping
    -c number : ping với số lần
    -s size
    -i s    : khoảng cách giữa các đợt
tcpdump
    #tcpdump -D : Network interfaces available for the capture
    #tcpdump -n : To display numerical addresses rather than symbolic (DNS) addresses
    tcpdump -i eth0
    #tcpdump udp
    #tcpdump port http
  
    #tcpdump -c 20 : To stop the capture after 20 packets
    #tcpdump -w capture.log 
Sử dụng vim tìm kiếm: / sau hoặc ? trước, n để next
:set number                show lines
:set number                hide lines


:0                        go to first line
:$                        go to end line
Mình dùg vim, ko biết nano
Thanks for reading
--------------------------------------------------------------------------
All my Lab:
Linux Lab -- window and Cisco Lab
to be continued - I will update more. 

Comments

Post a Comment

Popular posts from this blog

Python - Multithread to read one file

By Kendy Hikaru -
Today, i am working with python. I need write script to read one file, and get line by line, per line deliver one thread process ( total 10 threads). I want solution, so i chose working with thread and queue.
In python, when procsess initializate, this process will be assigned with queue, and working with this queue. We will put data ( in this case is line) to queue. Process will read from queue, so, all processes can read one file, not overlap :D

import threading
import Queue

#Number of threads
n_thread = 5
#Create queue
queue = Queue.Queue()

class ThreadClass(threading.Thread):
    def __init__(self, queue):
        threading.Thread.__init__(self)
    #Assign thread working with queue
        self.queue = queue

    def run(self):
        while True:
        #Get from queue job
            host = self.queue.get()
            print self.getName() + ":" + host
        #signals to queue job is done
            self.queue.task_done()

#Create number process
for i in range(n_thre…
Read more

Install Xposed Inspector and Frida on Genymotion

By Kendy Hikaru -
Image
Today i had some work with android. So i need trace application. I found 2 nice tool can help me:
Xposed Inspector and Frida. To setup there, i used Genymontion with x86 Emulator (quick start and light).
First create custom phone with Android 6.
1. Install Xposed Inspector
Inspeckage Inspector is one module of Xposed, so i need install Xposed before. Your phone need to be rooted (Default genymotion phone is rooted). You need download:
- Genymotion-ARM-Translation_v1.1.zip
- xposed-v80-sdk23-x86.zip (Exactly version with android api)
- XposedInstaller_3.0_alpha4
- Inspeckage Download at: https://acpm.mobi/genymotion-xposed-inspeckage.
Drag and drop Genymotion-ARM-Translation_v1.1.zip and xposed-v80-sdk23-x86.zip to phone, it will be flashed. Reboot.
After reboot, drag and drop XposedInstaller_3.0_alpha4 and Inspeckage to install apk.
Enable Inspeckage module and reboot (with xposed reboot function).
After reboot, start Inspeckage to monitor your app.
Port map: adb forward tcp:8008 tcp:…
Read more

OpenCA tutorial

By Kendy Hikaru -
Image
Install OpenCA tutorial

#yum install -y openssl-devel db4 db4-devel mysql-server mysql-devel perl-XML-Parser httpd
# rpm -Uvh openca-tools-1.3.0-1.el5.i386.rpm
# tar xvf openca-base-1.1.1.tar.gz
# cd openca-base-1.1.1
# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 7
Server version: 5.0.77 Source distribution

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.


mysql> create database openca;
Query OK, 1 row affected (0.00 sec)

mysql> GRANT ALL PRIVILEGES ON *.* TO 'openca'@'localhost' IDENTIFIED BY '123456';
Query OK, 0 rows affected (0.00 sec)

# mysql -u openca -p

./configure --prefix=/opt/openca \
                 --with-ca-organization="HBN CA Labs" \
                 --with-httpd-fs-prefix=/var/www \
                 --with-httpd-main-dir=pki \
                 --with-db-name=openca \
                 --with-db-host=localhost \
         …
Read more