Vyacheslav, Автор в IT Blog

Cisco Nexus SNMP OID for Transceiver

Once I needed to monitor the optical signal level on the Cisco Nexus C3064PQ-10GX to prevent cable sagging, stretching and signal loss, because in this case the signal deteriorates gradually, usually I monitor the signal on the end equipment, but I came across an old BDCOM 3310B model in which there was no support DDM.

1C Unknown error (SMTP error code 3)

One day I was informed that the accounting department on one of the computers could not send invoices by email.

Setting up BIRD logs

In this article, I will give examples of setting up logs in BIRD.

How to set up RPZ in Bind9 (site blocking)

In this article, I will give a simple example of setting up RPZ in Bind9.
RPZ (Response Policy Zone) allows you to block access to malicious and prohibited sites by domain name, IP address or network, block DNS servers.

ABillS log rotation

Since some ABillS log files gradually increased in size, I wrote a script to rotate these logs.

Interface Aggregation (LAG) on Juniper MX

For example, I will configure interface aggregation on the Juniper MX204.

How to change favicon in Zabbix

I was once asked to change the Zabbix icon.

Port isolation on HP 5800

For example, I will configure port isolation on the HPE A5800-24G-SFP switch.

Setting up a DNS zone in Bind9

In this article, I will give an example of adding a DNS zone to Bind9.

iPhone. Device is Unreachable while copying photos or videos

One day while copying photos and videos from iPhone to Windows PC, I got a “Device is unreachable” error. On the next attempt to copy, this error occurred immediately and the copy was not performed at all.