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1
vote
1answer
24 views

how to get packets log which are dropped by rp_filter=1

I do need a log of packets which are dropped by rp_filter ... how to do this logging ? which logs how to enable.
0
votes
1answer
87 views

Logrotate is not compressing

I need to compress the files in var/log/remots/*/* with the following logrotate rule /var/log/remots/*/* { rotate 178 daily maxage 178 compress } located in /etc/logrotate.d/remots. ...
10
votes
2answers
955 views

Why does cron require MTA for logging?

Why does cron require MTA for logging? Is there any particular advantage to this? Why can't it create a log file like most other utilities?
1
vote
0answers
644 views

Howto see messages that are subject to net_ratelimit?

OS: Ubuntu 14.04.3 Kernel: 3.13.0 I am running Linux Virtual Server (with keepalived) on that server. All ok. As of today, there is more network traffic on the LVS, and at the same time I start ...
1
vote
1answer
82 views

Script calling ssh; want to create log on local machine

I need to create a script which logs into all the servers listed in servers.txt. I want to use password, no passwordless. After logging in, I need to set a variable and perform an if- then- else.  ...
2
votes
1answer
179 views

Where are pptp logs in openSUSE 42.2?

I trying to set up pptp vpn connection in openSUSE Leap 42.2, but I got an error VPN connection failed.. I can't see nothing in dmesg and I have no /var/log/messages file I've installed rsyslog but ...
2
votes
2answers
504 views

Continuous multicast traffic from my router

I'm using an iptables firewall on my local Linux server. The log tells me that there is a continuous multicast on the network by my router (Fritz box). Is this a normal behaviour. Should I allow this ...
1
vote
0answers
67 views

Networking with Graylog in Qemu?

I want to run Graylog inside a qemu VM, then send it logs and access its web interface from the host OS. First I created a Debian Jessie VM and installed Graylog using their official guide, then I ...
1
vote
0answers
124 views

What does this UFW entry mean?

I've found this recent entry in ufw.log: RaspberryPi kernel: [1046588.133562] [UFW BLOCK] IN=wlan0 OUT= MAC=mac_address SRC=0.0.0.0 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 My ...
4
votes
3answers
991 views

How to track my public IP address in a log file?

I'd like to save my public IP address to a log file so I can use them to exclude my own visit to my websites in the stats collections. At the moment I can see my actual public IP address--whatsmyip....
1
vote
0answers
858 views

How can I log outgoing TCP traffic including the full path of URLs?

I use a program regularly on Linux that makes a TCP request when it starts up and updates a file with an access token before launching. I'd like to write a batch script that makes this request (using ...
1
vote
2answers
145 views

How to know URL being observed directly in a server

I host many websites using cpanel. I want to know URL being accessed at real time. It seems that many old domains still point to my host and they seem to take a chunk of CPU
1
vote
0answers
431 views

Unable to start apache

I'm running CentOS7 in virtualbox on a mac (osx 10.9.3). Ultimately, I want to access the website on my Guest VM from my Host. I can Ping and SSH to VM but I can't access the webpage when entering ...
3
votes
0answers
54 views

Log if no network

I have a router with OpenWRT. I noticed that sometimes (during night time) I have no internet connection. How can I log when this happens?
41
votes
7answers
168k views

History of IP addresses that accesed a server via ssh

It has come to my attention that a server of mine has been hacked and infected with a known chinese botnet. It was a prototype/testing virtual machine with its own static IP(US address) so no harm ...
0
votes
2answers
278 views

Syslog-ng failover: logserver to local file

We want to use a central Logserver for our Webservers so we can manage everyhing on one machhine. I'm a bit scared of what happens if the network breaks or the Logserver is down. Is it possible that ...
1
vote
1answer
913 views

How to calculate Linux Network RX, TX total stats - not just between reboots?

Is there any way to calculate the Linux network interfaces RX , TX for all times? The suggested method mentioned in this Cyberciti article titled: Linux See Ethernet Statistics only returns the stats ...
6
votes
1answer
5k views

How to see which URLs are blocked by Privoxy

I want to see a log of which URLs are blocked by Privoxy, but I cannot find this anywhere. Relevant lines in my configuration file (/usr/local/var/log/privoxy/logfile) are as follows: confdir /usr/...
2
votes
2answers
820 views

Monitor single process to logfile perodicly

Based on this question, I would like to log the performance of a specific process, with a frequency of say one second, to a csv (comma separated value) log file. Something like: timestamp(unix),...
4
votes
2answers
1k views

Meaning of log entries from an iptables configuration

My router has Linux as its OS. The system log has a lot of rows about iptable and klogd that I don't understand, could someone explain them to me? The iptables setup: iptables -t nat -A PREROUTING -...
0
votes
1answer
101 views

What to make of system scans reported by psad

My system logs show that psad detects scans like this every minute. psad: scan detected: 192.168.1.10 -> 192.168.1.1 udp: [53] udp pkts: 2 DL: 2 If the first address is mine, and the second ...
4
votes
2answers
10k views

Where does Debian store network connectivity history?

I would like to know if Debian has anywhere where it stores a history of network connectivity- IP addresses/server, DNS etc?
13
votes
4answers
37k views

What can I use to monitor and log incoming/outgoing traffic to/from remote hosts?

I run a web server (Debian Squeeze on a VPS), and the graphs provided by the hosting company show consistently that around twice as much traffic is incoming to the server compared to the outgoing ...
2
votes
1answer
159 views

Reporting Network and Vital Statistics and writing to db and image

I am looking for a versatile tool that can write either to a MySQL db, or possibly simply even just write some image charts (that i can display on a PHP dashboard) to monitor my network health. Is ...