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Questions tagged [connectivity]

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2
votes
1answer
22 views

how do I tab in telnet when executing it on remote host by ssh?

How can I use tab when I use telnet on a remote host by ssh, I have something like: ssh -o StritHopstKeyChecking=no -p port user@hostA telnet hostB; echo "Reconnect?"; while read < /dev/tty; do ...
2
votes
2answers
418 views

(Ubuntu 18.04 LTS) Can't switch off Airplane mode with physical switch

I'm running Ubuntu 18.04 LTS on an MSI GS65 Stealth 8RE. When the laptop gets out of sleep mode, air plane mode is on and Linux says it must be deactivated via a physical switch. The FN+F10 ...
1
vote
1answer
99 views

Can't connect to Github from one PC, every other website works fine

Running Ubuntu 16.04, I can connect to other websites fine: ping google.com PING google.com (172.217.25.206) 56(84) bytes of data. 64 bytes from nrt12s13-in-f14.1e100.net (172.217.25.206): icmp_seq=1 ...
1
vote
0answers
221 views

USB-Ethernet adapter stops working periodically, as if going to sleep

My laptop uses a USB-Ethernet adapter for a wired connection. Periodically, while actively working, the connection is lost. NetworkManager tries to connect and to obtain an IP address via DHCP but ...
-1
votes
1answer
794 views

Unable to telnet to a server

Here are 2 servers 192.168.0.12 192.168.0.21 there is a service running in 50070 port in server 192.168.0.12 when I do telnet from 192.168.0.21 server it fails: $telnet 192.168.0.12 50070 Trying ...
1
vote
1answer
914 views

Mac Unable to Connect to a Wifi Hotspot - Google Starbucks

I have a MacBook Pro that is not connecting to a Wifi Hotspot - namely, Google Starbucks. The problem is that the login page will not pop up when I connect to the network as it does with every other ...
1
vote
2answers
181 views

get pppd exit code - how?

I'm designing some reporting system on Raspberry Pi system which connects to world thru 3G usb modem controlled by pppd. 99,999% of time connection works ok, but sometimes it drops and further ...
1
vote
0answers
32 views

Change USB Port Health (Connectivity) Check Interval

Is there any way (in Linux) to change the interval that the system polls the USB ports for a health (connectivity) check? Or even turn off this check? Background: I have a small box that the devices ...
1
vote
0answers
235 views

Hadoop cluster not listening on port that I configured. What is wrong?

I set up a Hadoop cluster with RHEL 7.4 servers. There is no firewall between them. I am running Hadoop 3.0. On the namenode the core-site.xml file is configured to use port 54310. I run this ...
2
votes
0answers
304 views

The command “hdfs dfsadmin -report” fails because “failed to connect to server”

I am trying to configure a multi-node cluster of open source Hadoop. I have Hadoop 3.0 installed on the namenode and the data node. Both are running Linux (SUSE and Ubuntu). None are CentOS, RedHat ...
0
votes
1answer
447 views

znode not created in zookeeper

I use zookeeper and can't create znode . [root@server-1 bin]# sh zkCli.sh -server 127.0.0.1:2183 Connecting to 127.0.0.1:2183 Welcome to ZooKeeper! JLine support is enabled WATCHER:: WatchedEvent ...
0
votes
1answer
337 views

Repository error with yum

I cleaned yum (clean metadata, packages, all, etc...) and after that everytime I try to download or update or do something with yum I get the following error: http://"MY IP"/install/rocks-dist/...
1
vote
0answers
69 views

Connected, but no internet when resuming — works after reboot

I can connect to known networks, but do not have internet upon resuming (from suspension). The connection will be fine after a reboot. I am running Mint 18.2, kernel 4.10.0-35-generic. Edit: It is ...
1
vote
1answer
523 views

Can I force a second “Network Login” (captive portal) prompt from GNOME Shell?

I am running GNOME Shell and I have installed network-manager-connectivity-debian. When I first connect to a WiFi hotspot a "Network Login" window opens (a chromeless browser), and I can enter my ...
0
votes
1answer
2k views

reconnect to disconnected putty session or connect to idle session in linux

I need to reconnecting the putty session, I will tell you one example, I'm installing the python manually in my centos os machine, while I run command make, phyton is compiling to makefile suddenly I ...
1
vote
1answer
127 views

Certain HTTPS web sites do not load from KVM virtual machine over IPv6

This is driving me crazy as I cannot load certain HTTPS web sites only from KVM virtual machines and only over IPv6. IPv4 works fine. IPv6 connectivity works for the same websites from the hypervisor. ...
6
votes
1answer
312 views

How to create a configuration to only connect to WiFi if signal is ≥ 30 %?

Is there any chance to create a configuration that does the following job? Only connect to available WiFi if it's signal is stronger than 30 % At many places, I stay in the border area of barely ...
2
votes
2answers
539 views

Cannot access the captive portal in FreeBSD 12-CURRENT

Problem I'm trying to connect to an open WiFi with a machine running FreeBSD 12-CURRENT. Normally, I run wifi-start.sh (see below) whenever I want to connect to the Internet. It works with WPA ...
1
vote
0answers
175 views

Download Booster: combine ethernet and WiFi bandwidth

I'd like to know (and how) I can use simultaneously use two or more internet connections. e.g. Ethernet and WiFi (and yes, not from the same router/source...): if I have an ADSL connected via ...
1
vote
0answers
84 views

Internet connectivity lost every 10-15 minutes (ethernet cable)

I'm using Ubuntu 16.04, and I connect to my router using a LAN cable. The connection interface is called enp2s0. The router gives IP through DHCP to me. Everything works fine, for 10-15 minutes, and ...
2
votes
1answer
3k views

Broadcom BCM4352 : Bluetooth does not connect

Why does Blutooth not connect? The Bluetooth unit can find, but not connect to other devices on Debian Testing (9.0 Stretch). Bluetooth works well with a different Operating System. BIOS settings ...
5
votes
0answers
269 views

Cannot connect to FreeBSD server behind a router

I have a FreeBSD 9.3 installation inside the 192.168.2.x LAN2 which is connected to the 192.168.1.x LAN1 (router WAN IP is 192.168.1.10). This BSD runs SSH and FTP services. I can use both services ...
0
votes
1answer
153 views

SSH connection through VPNC drops as soon as I print data more than 100 bytes to the screen.

I have a vpnc connection with default configs: IPSec gateway www.example.com IPSec ID test IPSec secret test Xauth username foo Xauth password bar I use sudo vpnc and it connects fine. When I SSH ...
3
votes
0answers
148 views

Telnet connect to non-existing adress

I'm having unexpected behavior using the telnet command on various linux (Linux Mint, Ubuntu server). When trying to connect to a non-existent device, it succeed. I tested with 1.2.3.4 which is not a ...
3
votes
1answer
201 views

How can I use VPN for incoming connections and direct line for outgoing connections?

My ISP uses a Carrier Grade NAT (a switch inbetween ISP line and my primary router) and that doesn't allow me to do portforwarding (I have set it up but to no use). After much contemplation, I have ...
1
vote
3answers
165 views

Traceroute - approach the place with connectivity issues

I'm using the traceroute utility to test network connectivity. The problem is usually with slow speed - that means, the webpages in the browser are often displayed very slowly. Sometimes the speed of ...