How To Check And Secure Open Ports In Linux #Linuxnetworking #Linuxsecurity #Linuxadmin #Linuxhowto #Linux #netstat #ss #firewalld #iptables #nmap #lsof
https://ostechnix.com/check-and-secure-open-ports-in-linux/
#netstat
La commande #netstat présente dans le package net-tools est bien plus synthétique et lisible que #ss quant à la restitution de l'activité réseau d'une machine #Linux
https://www.dsfc.net/infra/reseau/netstat-activite-reseau-linux/
I learned last night that a Docker container will fail to launch properly, and in my case end up in a restarting loop forever, if the port the container is trying to use is being used by some other process on the system.
Using:
sudo netstat -nlp
produces a great set of data to checkout what is going on.
Powershell - Display network connections (equivalent to netstat) http://dlvr.it/THHDf1 via PlanetPowerShell #Powershell #Windows #Réseaux #Netstat
Was sind eigentlich eure Standard-Argumente für #netstat? Bei mir wäre das -tulpen. Kollege verwendet -pant
#chroot で #VineLinux 2.1.5の/を/にすればatok12xが起動できて #netstat -ltnに反応が出たし、kiput2xも起動できそう (生の #Ubuntu 22.04 LTSだとおなじみの変換サーバに接続できませんでしたである。) (/を/にした場合はXサーバに接続できない旨のエラー) だけれども、本当にこれで正しいのか?となっている
debootstrap chroot x11 cannot open display 0 no protocol error https://unix.stackexchange.com/questions/518126/debootstrap-chroot-x11-cannot-open-display-0-no-protocol-error
Learn about scripting techniques to help manage netstat information https://www.admin-magazine.com/News/Using-Aliases-to-Manage-Netstat-Information #netstat #aliases #scripting #statistics #output
How to use Netstat.exe to confirm which Program uses or blocks a port
#Linux, #Listening, #MicrosoftWindows, #Netstat, #Netstat.exe, #Node, #Port, #TaskList, #TaskManager, #Windows, #Windows10, #Windows11, #WindowsServer, #WindowsServer2012, #WindowsServer2016, #WindowsServer2019, #WindowsServer2022
Sloth
Sloth is a nice graphical macOS application (by the creator of Platypus) that shows all open files, directories, pipes and devices in use by applications in your system:(...)
#lsof #monitor #macos #resource #netstat #tcp #files #sockets
Comandi deprecati e corrispondenze
#linux #ifconfig #netstat #commandlineFU
This month, I’m going to wrap up discussion of network troubleshooting tools. So far, I’ve covered netstat, tcpdump, and ngrep and sniff. This month, I’ll discuss Ethereal, a tool for browsing network traffic interactively and analyzing network traffic. To put it more emphatically, Ethereal is the all-singing, all-dancing, packet-inspecting tool that all admins should have in their software toolboxes. Ethereal is capable of capturing packets for analysis or reading saved packet captures in a number of common formats. Ethereal support libpcap/tcpdump, Sun’s snoop/atmsnoop, LanAlyzer, MS Network Monitor, HPUX nettl, AIX iptrace, Cisco Secure IDS, and a number of others. (The full list can be found in the FAQ.) Ethereal supports more than 530 network protocols. You can also see supported protocols by selecting “Supported Protocols” from Ethereals Help menu. The Ethereal Interface I’ll start off by taking a look at Ethereal’s interface. Ethereal has a 3-pane interface that shows the user a great deal of information in an easy-to-use interface. The first pane shown gives a summary of captured packets (see Figure 1), displaying the packet number, its source and destination, protocol, and information about the packet. The middle pane gives detailed information about a selected packet, and the bottom pane displays the packet itself in a hexdump style. Note that you can edit the columns in the second pane using Ethereal’s Preferences dialog, found under the Edit menu. A particularly spiffy feature of Ethereal is that it will highlight each part of the packet when you click on the information in the middle pane. For example, let’s say you capture some traffic between your desktop and a Web site, as you’re requesting a Web page. In the first pane, you click on the packet containing a GET request. This displays that packet in the second and third panes. Then, you can click on a particular bit of information contained in that packet in the second window — like the packet’s source — and it will highlight the section of the packet that contains that information in the third window. Of course, you need some captured packet data to display. The Ethereal Web site features some interesting sample captures. They also have several capture formats so users can test Ethereal’s multi-format capabilities. Even if you don’t have much in the way of interesting traffic, it’s a good idea to familiarize yourself with Ethereal’s packet-capturing capabilities. The CTRL+k hotkey will bring […]
https://dissociatedpress.net/2004/08/24/the-open-road-ethereal/
Learn about alternative tools to deprecated #Linux commands https://www.fosslife.org/alternatives-deprecated-linux-commands #tools #CommandLine #security #commands #egrep #fgrep #nslookup #ifconfig #netstat #route #flags #ip
#Linux #Tip: Ever curious w/network programs are behind connected ports?
Try out: netstat -p flag.
Ex: netstat -p | less
Show what process is actively connected to what port.
Try -lp to show listening/processes.
In this tutorial, we will learn the usage of the SS command with the help of SS command examples.
https://linuxtechlab.com/learn-to-use-ss-command-examples/
#Linux #ubuntu #linuxfan #linuxadmin #linuxindonesia #linuxday #linuxuserofficial #linuxcrew #linux4ever #linuxuser #linuxubuntu #linuxbased #centos #fedora #linuxcommands #netstat #network #linuxhost #linuxcommunity #linuxcentos #linuxforever #linuxforhumanbeings #devops #devopscommunity #devopslife #devopsnotes #DevOpsGuys #DevOpsHandbook #devopsinuk #devopsengineer
In this tutorial, we will learn the usage of the SS command with the help of SS command examples.
https://linuxtechlab.com/learn-to-use-ss-command-examples/
#Linux #ubuntu #linuxfan #linuxadmin #linuxindonesia #linuxday #linuxuserofficial #linuxcrew #linux4ever #linuxuser #linuxubuntu #linuxbased #centos #fedora #linuxcommands #netstat #network #linuxhost #linuxcommunity #linuxcentos #linuxforever #linuxforhumanbeings #devops #devopscommunity #devopslife #devopsnotes #DevOpsGuys #DevOpsHandbook #devopsinuk #devopsengineer
Client Info
Server: https://mastodon.social
Version: 2025.04
Repository: https://github.com/cyevgeniy/lmst