Usually, simple SIM cards of the Kyivstar mobile operator, bought in some kind of stall or store, can be replaced independently with a new SIM card, for example, you can buy another SIM card there and call the operator, say that the old card is lost, report the last few dialed and accepted numbers, then the operator will block the old SIM card and activate a new one but with the same number that was on the old one.Continue reading ““Lock the self-replacement of SIM” at Kyivstar”
It took one time to configure several VLANs on the Mimosa B5c, the devices were already installed and the traffic passed through them without a tag in one VLAN.Continue reading “Configuring VLAN on Mimosa B5c”
On the test, I will use the D-Link DES-1210-28/ME Rev.B2 switch with firmware 6.07.B002.Continue reading “Hard reset D-Link DES-1210-28/ME”
Many people cannot figure out how to copy contacts from a phone to a SIM card, because the menu has the function of copying contacts from a SIM card to a phone, but on the contrary, no.
For example, I will use the phone Nokia C6-01.
Once I had to remove from the blacklists IP addresses of different dedicated servers located in data centers, since some mail services did not receive emails from them, due to the fact that the previous tenant did not use the IP address honestly or had viruses, spammed, and the current one got locks.Continue reading “How to remove an IP address from email blacklists”
Sometimes after updating the kernel of the system, some important services start to work incorrectly and in order not to look for a problem on the combat server, and to do it for example later on the virtual one, you can boot the system from the previous version of the kernel.Continue reading “How to roll back the kernel version on Ubuntu”
In this article, I will describe the Cisco Catalyst 6500 online diagnostic commands.Continue reading “Online diagnostics Cisco Catalyst 6500”
I opened it somehow in the explorer, to the left in the “Recent places” selected and noticed that the object “Recent places” appeared on the desktop, which cannot be deleted!Continue reading “How to remove “Recent places” from the desktop in Windows 7″
By default, the GRUB boot loader is installed on the first disk in the system, it is usually a hard disk, but on some servers with RAID controllers I noticed that when you turn on the server, select the USB flash drive in the Boot menu, of course, to boot from it, it becomes the first disk, then there is /dev/sda and at the end of the system installation the bootloader is installed on it.Continue reading “Why is the GRUB installed on a flash drive when installing Linux?”
For example, I will update the firmware of ASUS RT-N12LX router from version 184.108.40.206 to 220.127.116.11.Continue reading “ASUS RT-N12LX Firmware Update”