Install locate on CentOS and Debian
Install locate on CentOS and Debian Use the following commands : Debian : apt-get install locate CentOS : yum install mlocate
CentOS
Configure SNMP on Linux Ubuntu and Redhat
Configure SNMP on Linux Ubuntu and Redhat Configure SNMP on Debian or Ubuntu To install SNMP agent (snmpd) on a Debian-based system, run the following command: apt-get install snmpd Then edit its configuration of /etc/snmp/snmpd.conf file. # Listen for connections… Continue Reading
How do I check a reverse PTR record
How do I check a reverse PTR record From linux type: dig -x xx.yy.zz.aa xx.yy.zz.aa = The IP address you’re trying to resolve You’ll get an answer with your authority of aa.zz.yy.xx.in-addr.arpa and server resolving to this address. From windows… Continue Reading
7 Ping Very Useful Examples
7 Ping Very Useful Examples Ping command is used to find out whether the peer host/gateway is reachable. 1. Increase or Decrease the Time Interval Between Packets You can increase or decrease this using option -i as shown below. Decrease… Continue Reading
Nslookup Command Examples To Check DNS Records
Nslookup Command Examples To Check DNS Records Find out the domain IP address / A record [root@web ~]# nslookup arstech.net Server: 213.136.95.11 Address: 213.136.95.11#53 Non-authoritative answer: Name: arstech.net Address: 213.136.71.197 Find out the domain MX record [root@web ~]# nslookup… Continue Reading
Install nslookup on CentOS
Install nslookup on CentOS For install nslookup, dig, host you need bind-utils pakage. Just run the command: sudo yum install bind-utils
Fail2ban Unban Single Host
Fail2ban Unban Single Host run: iptables -L For example we need to unban 10.110.11.16 Then get the actual jails list: fail2ban-client status Unban command is: fail2ban-client set jailname unbanip m.y.i.p For unban 10.110.11.16 IP from asterisk jail run command: fail2ban-client… Continue Reading
Increase File Upload Size in PHP-Nginx
Increase File Upload Size in PHP-Nginx How to fix “[error] client intended to send too large body” in Ubuntu Edit php.ini: vi /etc/php5/fpm/php.ini Set: upload_max_filesize = 10M post_max_size = 12M Then change Nginx config file: vi /etc/nginx/nginx.conf … Continue Reading
Install Rkhunter (Rootkit Hunter) in RHEL, CentOS
Install Rkhunter (Rootkit Hunter) in RHEL, CentOS Rkhunter is rootkit scanner for Linux systems. This tool scans for rootkits, backdoors and local exploits by running tests like: – MD5 hash compare – Look for default files used by rootkits –… Continue Reading
Install Apache, MySQL, PHP (LAMP) stack On CentOS 6
Install Apache, MySQL, PHP (LAMP) stack On CentOS 6 LAMP is software bundle of web service solution stacks, named as an acronym of the names of its original four components: the Linux operating system, the Apache HTTP Server, the MySQL… Continue Reading