Vyacheslav Gapon – personal blog, manuals, articles, notes, development
I noticed on more than 10 DIR-300/NRU/B7 routers that they hang periodically, the Internet disappears, and if the router is included in an unmanaged switch, then the DIR-300/NRU/B7 also hangs it. All official firmware up to 1.4.8 did not solve the problem.
It was possible to solve the problem only with modified firmware from Zyxel Keenetic Lite.
Continue reading “Solving the problem with freezing DIR-300/NRU/B7 using firmware from Zyxel Keenetic Lite”As an example, we will take the D-Link DIR-300 NRUB7 router.
Continue reading “Configuring the D-Link DIR-300NRU/B7 Router”I had to restore the D-Link DIR-300NRU/B7 on the inoperative router, which stopped working after turning off the power at the time of the firmware update. In fact, some other D-Link routers can be restored using the method.
Continue reading “Restoring D-Link DIR-300NRU/B7 Router”In the test I will update the firmware of the D-Link DIR-300 B5 v.1.2.94 router to 2.15.12.
In my case, after updating the firmware, the settings were reset to the factory settings and new functions were added, for example, when you select a Wi-Fi channel, you can see the noise levels of channels by other devices.
In this article I will give some examples of blocking IP addresses, MAC addresses, DHCP packets from DHCP servers, etc.
Continue reading “ACL Examples for D-Link Switches”Suppose we configured snmp according to my instructions:
Configuring SNMP Traps on Linux
Now change the configuration file /etc/snmp/snmptt.conf.
In this article, I will give an example of IPTables rules for SNMP.
Let’s say “iptables -P INPUT DROP” is the default, which is very desirable.
Here is an example of installing SNMP and catching SNMP traps in Ubuntu Server.
Continue reading “Configuring SNMP Traps on Linux”They asked to somehow install Viber on iPhone 4 with the old iOS 7, which did not want to be installed through the App Store saying that iOS 8 and above was needed.
Continue reading “How to install applications from the App Store on older versions of iOS”They asked to find out somehow the reason for the frequent reboot of the MikroTik router.
When logging in the device, an error was constantly displayed in the logs: