How to Overcome “Too Many Authentication Failures” in SSH

If at the time of making an SSH connection and an error message appears Too many authentication failures, it happens because the SSH client tries to login with all available keys sequentially. Before getting a matching key, the SSH server has closed the connection because it has exceeded the allowed login error tolerance limit. Received disconnect from example.com port 22: […]

How to Change SSH Server Port Number

By default the Port number for the SSH server is number 22. Changing the SSH server port number is done for security reasons. By changing the port number, people trying to make SSH connections using the default port numbers will not be able to log in. Open the ssh server config file, I’m using Ubuntu sudo nano /etc/ssh/sshd_config 1 sudo […]

Mikrotik Can’t be Accessed from Linux?

To access Mikrotik can use various ways such as through the Winbox application, SSH, or Web (HTTP). Mikrotik access via SSH and Web (HTTP) can be done if the Mikrotik network interface has been given an IP Address. If there is no IP Address, we can use Winbox which can detect the MAC Address of Mikrotik. How to Access Mikrotik […]

How to Network Settings (Hostname, IP, Gateway, DNS Client) on FreeBSD

After successfully installing FreeBSD, the next step is to configure the network such as a static IP for the second network interface. Show all network interfaces ifconfig 1 ifconfig Result em0: flags=8843 metric 0 mtu 1500 options=9b ether 08:00:27:76:77:78 inet 10.0.2.15 netmask 0xffffff00 broadcast 10.0.2.255 nd6 options=29 media: Ethernet autoselect (1000baseT ) status: active em1: flags=8843 metric 0 mtu 1500 […]

How to Install Varnish with Apache on Ubuntu 16.04

Varnish is an HTTP accelerator software, caches website content and stores it in memory so that it can speed up website response. Varnish is used by large, high-traffic websites such as Wikipedia, The New York Times, The Guardian, Facebook, Twitter, Reddit, Vimeo, and Tumblr. In 2012 5 percent of the world’s top 10,000 websites used Varnish. Procedure When a website […]

How to Run Git Through SSH Tunneling

This morning I wanted to access Bitbucket.org but it’s very difficult to access, can’t open. Is Bitbucket.org down? Then I tried to access it using Opera by activating VPN via Singapore and it turned out to be accessible. There seems to be a problem with the Telkom and Telkomsel internet networks. The next problem is how to do Git to […]

How to Set Dynamic NAT Overload on Cisco

Dynamic NAT Overloading can translate multiple Private IPs with just one Public IP. Default Route Configuration Default Route R1 R1(config)#ip route 0.0.0.0 0.0.0.0 10.10.10.2 1 R1(config)#ip route 0.0.0.0 0.0.0.0 10.10.10.2 Default Route R2 R2(config)#ip route 0.0.0.0 0.0.0.0 10.10.10.1 1 R2(config)#ip route 0.0.0.0 0.0.0.0 10.10.10.1 Configure Dynamic NAT Overload on R1 R1(config)#ip route 0.0.0.0 0.0.0.0 10.10.10.2 R1(config)#ip nat inside source list […]

How to Set Dynamic NAT on Cisco

In Dynamic NAT to translate IP addresses, the number of Public IPs must equal the number of Private IPs. Dynamic NAT Configuration Dynamic NAT Configuration on Router 1 R1(config)#ip nat pool NATPOOL 10.10.10.1 10.10.10.1 netmask 255.255.255.0 R1(config)#access-list 1 permit 192.168.0.0 0.0.0.255 R1(config)#ip nat inside source list 1 pool NATPOOL R1( config)#int fa0/0 R1(config-if)#ip nat outside R1(config-if)#ex R1(config)#int fa0/1 R1(config-if)#ip nat […]