Device setup
Apple devices need access to the following hosts…
F1 Blog Space
Some helpful stuff thats going on
is collected here...
F1 Blog Space
We at F1-CONSULT work on really cool and amazing stuff
and discover and learn something new everyday.
F1 Blog Space
Here some of our
Musings, Ramblings, Observations
to keep a record of our sometimes really hard learnings.
All 60
All 60 /AnyConnect 3 /Apple 1 /ASA 2 /BIND 1 /CISCO 1 /CISCO Security 0 /CUBE 5 /Debian 3 /Email 3 /github 1 /IOS-XE 1 /IPSEC 1 /IPv6 1 /LAN 2 /Linux 7 /Microsoft 0 /MySQL 1 /News 1 /Postfix 1 /QOS 1 /Security 10 /SEO 1 /SMTP 0 /SSD 1 /Storage 0 /Ubuntu 1 /VCSA 1 /VMWare 1 /VOICE 0 /WEB 0 /Windows Server 2 /WLAN 1 /WLC 2 /WordPress 1 /ZFS 4
CISCO – AnyConnect – The VPN connection to the secure gateway was interrupted and could not be automatically re-established
2023-11-15/by wriedelCISCO – AnyConnect – Windows Autostart
2023-11-15/by wriedelCISCO – AnyConnect – AnyConnect Profiles location
2022-03-22/by wriedelApple products on enterprise networks
2023-09-28/by wriedelIPv6 – networking acronyms and abbreviations
2023-06-09/by wriedelCisco Transceiver Modules – Data Sheets
Transceiver-modules
Data Sheets
Optical transceiver modules
800G…
2023-02-01/by wriedelData Sheets
Optical transceiver modules
800G…
ZFS – Replacing a dead disk in a zpool
ZFS – Single Path
[crayon-65704fc40303f633493835/]
ZFS…
2018-02-13/by wriedel[crayon-65704fc40303f633493835/]
ZFS…
LINUX – nmcli command examples (cheatsheet), compare nm-settings with if-cfg file
Table of Contents
Understanding nmcli
Compare nm-settings…
2021-06-07/by wriedelUnderstanding nmcli
Compare nm-settings…
WordPress – auto-update via proxy
Here a brief config snipped to allow Wordpress to
use a…
2018-02-07/by wriedeluse a…
Ubuntu – How to fix broken packages
1. fix broken packages
[crayon-65704fc4040d6624368919/]
2.…
2018-02-08/by wriedel[crayon-65704fc4040d6624368919/]
2.…
BIND – Response Policy Zones (RPZ)
ISC Webinars:
https://www.isc.org/mission/webinars
ISC Webinar…
2018-02-13/by wriedelhttps://www.isc.org/mission/webinars
ISC Webinar…
Debian – How to delete broken packages
1. remove broken packages
[crayon-65704fc4044a3970279342/]
2.…
2018-02-08/by wriedel[crayon-65704fc4044a3970279342/]
2.…
MySQL – How to Back Up and Restore a Database
Declarations
Database: [dbname]
User: [uname]
Password:…
2018-02-14/by wriedelDatabase: [dbname]
User: [uname]
Password:…
CISCO ASA LDAP AAA Error ‘AAA Server has been removed’
Problem:
Attempting to test AAA authentication via LDAP to a…
2018-02-20/by wriedelAttempting to test AAA authentication via LDAP to a…
Postfix – DNSBL Providers
The complete IP check for sending Mailservers
DNSBL (DNS…
2018-02-23/by wriedelDNSBL (DNS…
CISCO CUBE SipGate
1. Cisco Unified Border Element with Support for Multi-VRF
Cisco…
2018-02-12/by wriedelCisco…
CISCO CUBE SIP TRACES
source: supportforums.cisco.com
Ayodeji Okanlawon
SIP…
2018-03-01/by wriedelAyodeji Okanlawon
SIP…
CISCO CUBE SIP DEBUGS
Source: supportforums.cisco.com
Muthurani…
2018-03-01/by wriedelMuthurani…
Clamav – Virus Protection
ClamAV: Description:
[crayon-65704fc4057b1651592128/]
ClamAV:…
2018-04-09/by wriedel[crayon-65704fc4057b1651592128/]
ClamAV:…
Microsoft Windows Server 2016 – NFS Share
How To Mount An NFS Share In Windows Server 2016
Install NFS…
2018-03-05/by wriedelInstall NFS…
CISCO – WLC – AP Not Joining Controller – %DTLS-3-HANDSHAKE_FAILURE
Cisco WLC AP cert issue: %DTLS-3-HANDSHAKE_FAILURE
WLC error…
2018-04-02/by wriedelWLC error…
CISCO – WLC – Trouble Shooting Commands
Common outputs from the WLC for further analysis
[crayon-65…
2018-04-04/by wriedel[crayon-65…
CISCO – WLAN – Factory Reset
How to restore the factory settings on a Cisco Access Point
1.…
2018-04-03/by wriedel1.…
IPSec Overhead
What is IPSec?
IPSec, is a framework of open standards (from…
2018-04-09/by wriedelIPSec, is a framework of open standards (from…
Email Encryption with PGP
OpenPGP is a non-proprietary protocol for encrypting email communication…
2018-05-22/by wriedelDSGVO
Datenschutz-Grundverordnung DSGVO 2018
Kompakt und aktuell:
Die…
2018-05-18/by wriedelKompakt und aktuell:
Die…
Cybersecurity Conferences
2018-05-26/by wriedelNetwork Operating Systems
Network Operating Systems
This page is an attempt…
2018-06-19/by wriedelThis page is an attempt…
CISCO IOS and IOS-XE Call Routing
In Depth Explanation of Cisco IOS and IOS-XE Call Routing
Source: https://www.cisco.com
Updated:June…
2018-06-04/by wriedelSource: https://www.cisco.com
Updated:June…
Solid State Drives Technology Comparison – SLC, MLC, TLC NAND
SSDs (Solid State Drives) use NAND flash chips. Each of these…
2018-06-01/by wriedelCISCO CUBE SIP DEBUGS
How to capture SIP traffic on a router
monitor…
2018-07-12/by wriedelmonitor…
How to Disable or Enable Disk Write Caching in Linux
ATA-Based Disks
Check out whether disk caching is enabled…
2018-07-10/by wriedelCheck out whether disk caching is enabled…
GDPR
GDPR
GDPR effects any company that handles personal data of…
2018-06-06/by wriedelGDPR effects any company that handles personal data of…
How to Delete All VSS Shadows and Orphaned Shadows
2018-06-25/by wriedelTools to check website keyword ranking
AntRanks - Keyword Rank Tracking in Search Engines
Authority…
2018-05-30/by wriedelAuthority…
Git – use a proxy
Configure Git to use a proxy
##In Brief
You may need to configure…
2018-08-13/by wriedel##In Brief
You may need to configure…
Debian – How to disable snmpd ia_addr insert messages?
You have Debian and Ubuntu servers which runs snmpd service and are…
2018-07-14/by wriedelZFS – SNMP
ZFS - SNMP Extend Commands:
[crayon-65704fc4099cd933225025/…
2018-09-12/by wriedel[crayon-65704fc4099cd933225025/…
Debian – How do you select the fastest mirror from the command line?
I want to update my sources.list file with the fastest server…
2018-08-31/by wriedelZFS – Tuning
ZFS tuning for SAS3 Storage Tank
[crayon-65704fc40a102326038596/]
ZFS…
2018-09-13/by wriedel[crayon-65704fc40a102326038596/]
ZFS…
Linux – Permissions
In order to update and change file permissions,…
Linux – iproute2 Cheat Sheet
Overview
iproute2 is the Linux networking toolkit that…
2018-07-30/by wriedeliproute2 is the Linux networking toolkit that…
CentOS – NIC Teaming with LACP
A Comparison of Features in Bonding and Team
Feature
Bonding
Team
broadcast…
2018-09-10/by wriedelFeature
Bonding
Team
broadcast…
ZFS – CENTOS Downgrade
ZFS - Downgrade Commands for Centos:
To do the downgrade/re-install…
2018-09-14/by wriedelTo do the downgrade/re-install…
CentOS – How do I safely delete old kernel versions ?
package-cleanup:
Using package-cleanup command which is a…
2018-09-14/by wriedelUsing package-cleanup command which is a…
LINUX – Network Throughput Tuning
General Approach
To check what setting your system is using,…
2018-09-14/by wriedelTo check what setting your system is using,…
SpamTEQ
https://twitter.com/spamteq
2018-11-13/by wriedelDeteque
https://twitter.com/deteque
2018-11-13/by wriedelvCenter Server Appliance 6.5 fails to boot
2019-04-26/by wriedelRisk Management Frameworks
Risk Management Frameworks
Risk Assessment should be considered…
2018-10-01/by wriedelRisk Assessment should be considered…
Threat Modeling
Application Threat Modeling
Application Threat modeling should…
2018-10-01/by wriedelApplication Threat modeling should…
How to force fsck at every boot in Linux
In /etc/init.d/checkfs.sh is the line if [ -f /forcefsck…
2019-01-05/by wriedelCommon Vulnerabilities and Exposures – CVEnew
https://twitter.com/CVEnew
2019-01-14/by wriedelTop 10 Best Proxy Server and online Proxy
proxysite.com proxy.orgFilterbypass.meUnblocker.usprox…
2019-01-02/by wriedelCommon Vulnerabilities and Exposures – CVEannounce
https://twitter.com/CVEannounce
2019-01-14/by wriedelRFC 4594-Based 12-Class QoS Model
2020-05-07/by wriedelCISCO IOS XE – passwords will soon be deprecated
2020-12-25/by wriedelCISCO ASA – %ASA-6-722036 Transmitting large packet 1418 (threshold 1347)
2021-02-05/by wriedelCentOS – Installer just goes black screen on Centos8
Problem:
During installation of CentOS the installer screen goes…
2020-06-25/by wriedelDuring installation of CentOS the installer screen goes…
The CyberWire
https://twitter.com/CVEnew
2020-04-18/by wriedelWhere to find us
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Germany
Get in touch with us
Phone: +49-9131-610-310
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Email: info@f1-consult.com
Latest Blog Entries
The CyberWire2020-04-18 - 00:40- Common Vulnerabilities and Exposures – CVEannounce2019-01-14 - 11:47
