Managing and using network connectivity on a unix system

learn more… | top users | synonyms (1)

2
votes
0answers
13 views

Wi-Fi Sabrent PCI-8021N Linux Debian Jessie _x86_64 using ralink firmware/desktop

I've been trying since Thursday to get a sabrent card to come up and show what wifi networks are available. I'm in midtown Atlanta...so seems there should be 1 or 2 networks showing. The card's power ...
1
vote
0answers
17 views

How can you remote boot over InfiniBand?

If I have InfiniBand adapters in two computers, an InfiniBand cable between them, and all of my hard drives in one of the computers running the necessary host software (iSCSI/SRP/etc), how would the ...
1
vote
0answers
65 views

How to get an RPi2 running Kali to tether to an iPhone 5S?

I’ve got Offensive Security’s version of Kali Linux running on a Raspberry Pi 2 and I’m trying to tether it to an un-jailbroken AT&T iPhone 5S. From my research it looks like I need to install ...
1
vote
2answers
177 views

Keep losing resolv.conf configurations

Every time i reboot raspi this resolv.conf files is cleaned. i normally add on this file the openDNS ips like below: # OpenDNS IPv4 nameservers nameserver 208.67.222.222 nameserver 208.67.220.220 I ...
0
votes
0answers
33 views

Can't ping another router in my network (OpenWrt)

I'm playing around with OpenWrt and followed this tutorial step by step to set up a mesh network: http://wiki.openwrt.org/doc/howto/mesh.80211s Problem: When I got to the end and ran these two ...
2
votes
1answer
58 views

TFTP times out when connecting to Docker server

I'm trying to install FOG in Docker (via boot2docker for Windows) at my workplace as a bit of a learning exercise. FOG has a handy little script that installs everything for you, and that works great ...
0
votes
1answer
28 views

OpenVZ machine's venet0 network suddenly down

I have setup a further OpenVZ container with the following network setup: venet0:0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:192.168.10.168 ...
3
votes
1answer
17 views

Enabling proxy_arp for interface eth2.1

Am trying to enable proxy arp for some of the interfaces, with the normal interface name eth0, eth1, etc [root@eth2.1]# sysctl net.ipv4.conf.eth0.proxy_arp 0 But for interface names such as ...
1
vote
1answer
129 views

Two network interface(eth0 and eth1) of same linux machine can't ping each other

I have one linux machine having two gigabit network interface. I want to run the traffic test like iperf on two interface, eth0 will be server and eth1 will be client. I connected back-to-back network ...
0
votes
1answer
30 views

How to send a NDP message?

I would like to send a NDP ( Neighbor Discovery Protocol ) message from my Mac on the network to discover which device is available or not. How can I do this ?
0
votes
1answer
34 views

Virtual NIC's in Linux?

How do I create a VNIC interface in linux? What I want to do is create an interface that is linked in some way to a physical interface but functions in its own namespace. I know the physical ...
2
votes
3answers
63 views

Is there a command to deny an IP

Looking at the access log I found excessive access from an IP address. I then edit either .htaccess or .conf files to deny access from that IP. I wonder if there is a command or a oneliner that can do ...
3
votes
2answers
67 views

Do I want a Repeater or a Bridge? (OpenWrt)

I'm setting up a network with openwrt. I have a router that I have set up for wifi which I will use as an access point. I want to add another router to my network so that the two can exchange traffic ...
2
votes
3answers
322 views

Chat from one system to another in a terminal

I would like send a chat message (like mail chat) between two systems, the systems are inter-connected proxy IP.
0
votes
1answer
34 views

Pinging between Mesh Network Nodes OpenWrt

I have two mesh nodes that I have configured to be on a mesh created using OpenWrt. I used the tutorial here to set that up. When I ran iw dev $MESH_IFACE station dump, I got the output that I ...
1
vote
2answers
49 views

How to change the last IP digits on linux command line

I'm trying to change the last digits of the IP address that I got stored as a variable ip=$(ifconfig eth0 | grep "inet addr" | awk -F: '{print $2} | awk '{print $1}') The output would be ...
-1
votes
1answer
26 views

Transmitted packets on a LAN interface may increase received packets on WAN interface?

Supose a simple home router gateway and the following: lan0 - Network interface responsible for LAN-side of the router wan0 - Network interface responsible for WAN-side of the router A default route ...
0
votes
2answers
56 views

Disable DHCP without altering 'interfaces'

I have a bunch of RPis running in read-only filesystems that are not able to modify the /etc/network/interfaces file. As of right now, they load their configurations off of a USB stick and use ...
1
vote
1answer
67 views

Arch Linux: Despite ot static ip configuration I get a DHCP address

This is very strange to me. On my Raspberry Pi running the latest Arch Linux I disabled all the DHCP service on ETH0 and everything else DHCP: rm /etc/dhcpcd.duid pacman -R dhclient pacman -R dhcpcd ...
1
vote
0answers
15 views

Authentication shared over multiple systems [closed]

TL;DR I'm looking for a software that allows authentication shared over multiple systems to be used for authorizing access to all devices connected to a network. Any advice, recommendation inclusive ...
0
votes
1answer
39 views

Simultaneously operate on multiple wireless networks

I'm running an Ubuntu 14.04 server. For an experiment I'm running I have the following requirements: -Receive data from multiple (3-4) wireless networks. -Machines on a network will only need to ...
1
vote
0answers
54 views

Change timeout of an entry of ipset with iptables rule

I'm trying to create a set with ipset and using it in some iptables rules. ipset has timeout option to set a countdown timeout to an entry of a set to automatically remove it after a period of time. ...
1
vote
1answer
25 views

Estimating time to send a single file with fixed network throughput?

Let's say I have several files with different sizes (10KB, 100KB, 1MB, 10MB, 100MB). Starting individual transfer of those files over 2MB per second network will return different final throughput ...
1
vote
0answers
33 views

Prevent Chromium/Chrome from displaying URLs under certain directories

I'd prefer a low-level approach, e.g. changing the hosts file would be perfect (but AFAIK only domains, not directories can be rerouted there). I'm looking for a way to block ads without resorting to ...
18
votes
7answers
2k views

Why compute checksums of downloaded files?

I often see a checksum given next to a file available for download. The purpose of this practice eludes me. It is obviously to detect corrupt files, but what could be the cause of this corruption and ...
1
vote
1answer
32 views

How to direct host's browser to guest VM?

Host - Windows 7 Guest - CentOS 7 I have set up a CentOS VM using VMware Player. I can now connect to the internet (ping google.com, install packages using yum are all successful) after changing the ...
2
votes
2answers
60 views

Linux network stops functioning after random time (wired)

I'm unsure if this is hard or software issue but I really need to find out. I was running Windows 8.1 for some time, then swapped to Linux mint with kernel 3.13 which worked fine. I updated kernel to ...
0
votes
0answers
18 views

Connect HDHomeRun directly to a computer and share with the rest of the network

I installed Linux Mint recently on my new Intel NUC. I would like to connect my HDHomeRun directly to the computer through the ethernet port and use the built-in WiFi as a bridge to allow the rest of ...
0
votes
0answers
22 views

i have ap-hotspot installed and working but only https sites can connect

I currently installed app hotspot on my linux-mint everything looks fine now but only https sites can be connected from my galaxy s4 phone such as facebook google etc. When i want to connect some ...
0
votes
1answer
12 views

dig domain replay SOA

I have a domain and when I use dig jeeja.biz it just gives me my server ip address. ;; ANSWER SECTION: jeeja.biz. 13914 IN A 209.15.212.171 But when I use the same command on another ...
2
votes
1answer
76 views

How to connect CentOS virtual machine (on VMware) to the internet?

I have set up VMware and installed a minimal CentOS (my laptop's OS is Windows 7). But cannot connect to the internet. Eventually I tried following this guide but still no luck. Trying to ping a ...
3
votes
1answer
48 views

Force local IP traffic to go through LAN WITHOUT ip address changes

I post this question on serverfault a few days ago but i think it's more accurate here. I know there's some topics about forcing local IP trafic of a Linux machine to go through the LAN (over the ...
1
vote
1answer
21 views

How can I run a command on all cliennts at a time from the server that all are connected to NIS & NFS server?

NIS and NFS configured network. 1 NIS server, 1 NFS server, 50 NIS & NFS clients. OpenSUSE 13.2 Need to run a command on all clients from server machine. Command: an installation command on ...
2
votes
3answers
159 views

How to create a TCP listener?

Introduction: I have created a bash function that is able to check whether a port is available and increments it by 1 if false until a certain maximum port number. E.g., if port 500 is unavailable ...
1
vote
0answers
122 views

Huge packet loss on openwrt

I have a strange issue on mikrotik rb951-2hnd router. I firmwared it to openwrt a few years ago and everything worked fine. Just a few months ago I decided to update firmware. So I did it and ...
0
votes
1answer
48 views

Device shown using lspci but udev not loading the driver

My nic shows using lspci -v but udev is not loading the driver for it. Links to screenshots of diagnostic output are below. dmesg insmod lspci pacman -Qi ls /sys/class/net uname -a original ...
1
vote
1answer
26 views

Is there a way to have netcat listen and place incoming files in a destination directory?

I'd like to use netcat to regularly transfer files to a media server on my network. However, I can't figure out how (or if it's possible) to do something like nc -l 5959 > /media/data/, where ...
1
vote
0answers
56 views

Howto configure linux router to allow clients to use maximum bandwidth?

The problem is that I'm always limited on the final client machine to about 1/3 (one third,about 200/300kb) of the internet hotspot bandwidth when testing download speed with wget. I have configured ...
0
votes
0answers
38 views

Many Linux commands hang during execution, but system is alive [duplicate]

I can access the system through ssh, but many commands would hang, like the following: # ps axf Read from remote host 172.17.102.22: Connection reset by peer Connection to 172.17.102.22 closed. # ls ...
1
vote
0answers
36 views

Share WiFi internet over same WiFi adapter

I am trying to share internet through my WiFi adapter which is in use for connection to that internet. While I had Connectify license on Windows, I was able to do so: Internet from: My Wifi adapter ...
1
vote
1answer
201 views

Permission denied when trying to access mounted windows NFS

Full disclosure: I'm a complete noob with NFS and have very little idea what I'm doing. After hours of googling, I ended up here. I am trying to mount an NFS folder that I have set up on a WIN08 ...
0
votes
1answer
80 views

Leoxsys nano wifi adapter installation in backtrack 5r3/kali linux 1.1.0

I have leoxsys nano wifi adapter 150mbps using chipset realtek 8188ETV. It works fine in windows but not recognised in backtrack or kali linux via vmware workstation 9/10/11. When i gave the command ...
1
vote
3answers
113 views

Internet connectivity issues due to wrong MAC address (using Linux Mint 17.2)

I am new to Linux. Today, I installed Linux Mint (17.2) and tried to connect to the internet via a broadband connection. My Internet Service Provider (ISP) provided me with a fixed MAC address that ...
1
vote
1answer
36 views

How to Connect Different WiFi interfaces : 1 for external 1 for internal

I've built a Wireless Access point using hostapd and udhcpd. I have 2 WiFi dongles, one is used as wlan0 other is used as wlan1, I connected one of them to internet and other is keeping working as an ...
0
votes
1answer
189 views

Huawei E3372s + Linux (Rasbian), Incoming connections problem

I have a Linux-based OS (Rasbian) running on Raspberry Pi 2+ and it is using Huawei E3372s 4G/LTE USB Stick for internet connection. All my outbound connections work perfectly (Huawei USB mode ...
0
votes
1answer
17 views

How do I allow other physical machines on my LAN to connect to a web server hosted within my local virtual box windows VM?

I am running Windows Server 2008 R2 within Virtual Box v4 with os x 10.6 as my host. Within Windows Server, I am running IIS and I have successfully been able to access my web server with Internet ...
0
votes
1answer
71 views

Bridge and iptables postrouting

I have a Linux 3.14 PC with three NICs and a bridge between two of the NICs (eth1 and eth2). My Question Why is there no traffic passing through the POSTROUTING rule? FYI, traffic is passing ...
1
vote
1answer
63 views

Access Point offers itself IP if used as DHCP Server?

I'm trying to use an raspberrypi (OS=raspbian 4.0.7) I had flying around so I researched a little bit and everything seems to work more or less fine. I am using hostapd in combination with an wifi ...
0
votes
1answer
89 views

Why Gentoo detects no network devices? [closed]

I've faced the problem installing Gentoo: after the installation is seems to be completed and LiveCD is extracted, network becomes unreachable: gentoo~ # ping 8.8.8.8 connect: Network is unreachable ...
2
votes
1answer
74 views

“Network is unreachable”, github, bitbucket is not working

The output of ifconfig eth0 Link encap:Ethernet HWaddr 3c:97:0e:74:43:8e UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 ...