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Cesar Bielich's questions

Martin Hope
Cesar Bielich
Asked: 2022-12-10 13:00:33 +0800 CST
  • 5

I am trying to troubleshoot some cronjob problems I am having so I wanted to start logging them.

* * * * * wget https://www.example.com/dosomething.php >> /var/log/myjob.log 2>&1

When I view my log file I am getting some No space left of device errors yet the cronjob runs successfully.

I checked my df and df -i to check my storage and inodes and I have plenty of storage.

What is causing this particular No space left on device error when it's logged?

--2022-12-09 19:32:08--  https://www.example.com/dosomething.php
Resolving www.example.com (www.example.com)... x.x.x.x
Connecting to www.example.com (www.example.com)|x.x.x.x|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 0 [text/html]
dosomething.php.962181: No space left on device

Cannot write to 'dosomething.php.962181' (Success).

enter image description here

linux
Martin Hope
Cesar Bielich
Asked: 2018-04-05 10:33:05 +0800 CST
  • 1

I have had this situation happen a few times where I found a device that was being supplied POE from an injector and that injector was plugged into a switch that is already providing POE. Obviously I remove the injector and it's done.

I have been having a problem with a users POE phone that has been having issues even after replacing the cables, phones and everything else. The phone would randomly stop working, or it would partially work and then it would work.

Anyways do POE injectors still work fine even though they may be plugged into a POE switch? Does the "double" power cause issues?

I just never heard of it causing issues so I am curious

power-over-ethernet
Martin Hope
Cesar Bielich
Asked: 2016-03-16 12:10:35 +0800 CST
  • 1

I have COX communications as my ISP and I have a 400 MB connection at work. I have had for years an iptables firewall I setup that runs great.

CPU Info

Intel® Core™ i5-2400 Processor (6M Cache, 3.10 GHz)

I have 2 1000Mb/s NICs in it.

2 x DGE-530T Gigabit Ethernet Adapter (rev 11)

I use all CAT6 cables for connections

All my switches support Gigabyte.

Using ethtools I have confirmed their setup

enter image description here enter image description here

iptables

About 50 lines of code (even after doing a iptables -F it still slow)

When I get in front of the firewall and connect directly to the cable modem I get the full 400Mb/s. When I get behind the firewall it slows down to 100Mb/s give or take, last night I saw up to 160Mb/s. I have tried all times of the day including late at night when no one is on and I always get the same results. I have installed other NIC's in it as well and still get the same results. I am thinking it is my box but I have a quad core which is by far enough power to handle this.

Is there something I am missing? Are there some other tools I can use to troubleshoot this?

iptables
Martin Hope
Cesar Bielich
Asked: 2014-05-09 08:38:12 +0800 CST
  • 1

We run all Enterasys switches (C and B) stacks. All my switches are behind some pretty good surge and battery backups (APC and Tripplite).

3 Days ago we had a power surge at our company. Nothing shut down, but I had ports on some of my switches that stopped working. Even though lights were blinking like data was going through and Netsight was not reporting anything wrong. I was getting timeouts like crazy. It took me a while to finally figure out that all I had too do was unplug the cable from the port and plug it back in and everything return back to normal.

One of the ports that had an issue was the fiber connection which I use a Proline AGM731F connector for that. I had to unplug it and replug it and everything works fine. This is the second time I have had this issue where ports stop working for no reason.

What makes it difficlut to deal with is that no errors, collisions, packet loss are being reported even though I can simply ping and get timeouts.

Any idea what may be causing this?

switch
Martin Hope
Cesar Bielich
Asked: 2012-12-06 14:15:15 +0800 CST
  • 2

I have the following in my /etc/network/interfaces file

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address xxx.xxx.xxx.xxx
netmask xxx.xxx.xxx.xxx
gateway xxx.xxx.xxx.xxx

auto eth1
iface eth1 inet static
address xxx.xxx.xxx.xxx
netmask xxx.xxx.xxx.xxx
gateway xxx.xxx.xxx.xxx

On reboot the server is not configuring both interfaces then I did a ifconfig and noticed that both eth0 and eth1 have the same MAC address. So it seems like both interfaces are being assigned to the same NIC. I have 2 Nics in the server. Can anyone help me whats going on

linux-networking