Author: Ahmad
Date: June 29, 2015
RedHat comes with a mitigated package called RHSA (RedHat security advisory) This RHSA comes with a unique id like CVE Contain the date of fix and these type packages come for the applications that shipped from RedHat Example RHSA-2015:0291 For listing available updates for application
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yum updateinfo list openssl FEDORA-2015-0512 security openssl-1:1.0.1k-1.fc21.x86_64 FEDORA-2015-4303 security openssl-1:1.0.1k-6.fc21.x86_64 FEDORA-2015-10108 security openssl-1:1.0.1k-10.fc21.x86_64 |
For quick installation to security batches
Author: Ahmad
Date: January 12, 2015
hello in this article we will simply convert vhd file (VirtualBox disk image) to VMware disk our VirtualBox disk is “systemdisk.vhd” we will use qemu emulator to convert the disk our target app to do the convert is qemu-img
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qemu-img convert -f vpc -O vmdk systemdisk.vhd systemdisk.vmdk |
Author: Ahmad
Date: January 8, 2015
Categories:
Firewall,
Linux
hello this iptables rule to redirect all incoming traffic from all ports to one port example 80 on ip 192.168.1.10
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iptables -A PREROUTE -t nat -i eth0 -p tcp --dport 1:65535 -j DNAT --to-destination 192.168.1.10:80 |
enjoy
Author: Ahmad
Date: December 14, 2014
RedHat and centos come with the default repo so you have to install additional repos to get all your software from yum epel ius remi rpmfroge
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rpm -ivh http://dl.iuscommunity.org/pub/ius/stable/RedHat/7/x86_64/ius-release-1.0-13.ius.el7.noarch.rpm rpm -ivh http://dl.iuscommunity.org/pub/ius/stable/RedHat/7/x86_64/ius-release-1.0-13.ius.el7.noarch.rpm rpm -ivh http://rpms.famillecollet.com/enterprise/remi-release-7.rpm rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm |
enjoy this list for 64bit system centos 7 u can customise the links as you got the link
Author: Ahmad
Date: December 3, 2014
level 4 😀
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level4@io:~$ cd /levels/ level4@io:/levels$ ./level04 Welcome level5 level4@io:/levels$ ./level04 d Welcome level5 level4@io:/levels$ ./level04 $(python -c "print 'A' * 1024") Welcome level5 |
so i will read the code
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int main() { char username[1024]; FILE* f = popen("whoami","r"); fgets(username, sizeof(username), f); printf("Welcome %s", username); return 0; } |
popen to execute whoami
Author: Ahmad
Date: November 30, 2014
let’s assume u have NGINX on port 80 apache on port 8080 in nginx config -> sever config -> virtualhost config
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location / { proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $remote_addr; proxy_set_header Host $host; proxy_pass http://127.0.0.1:8080; } |
Author: Ahmad
Date: November 24, 2014
Categories:
Linux,
Security
GPG = Gnu Privacy Guard To secure file from unauthorised access with the password in Linux/Unix is very simple method 🙂 lets assume we have a secure file with some financials stuff called orders.xls and we want to email it to our partners and we want to get sure just he is the only one […]
Author: Ahmad
Date: November 24, 2014
Categories:
Databases,
Linux
we all hate this ERROR 1045 (28000): the problem starts with “you can’t access and u will not be able to change the MySQL/MariaDB password while the service is running u have to disable it and run mysqld_safe which will allow u to update the user table inside MySQL database with no password then u will […]