All Questions
72
questions
1
vote
1
answer
6k
views
Which flags to use on rsync to achieve full replication?
Hi since I have searched stack overflow and did not get info about this, I need to ask again with specific requirements. I have an old storage with approx. 4TB of data and I would like to sync it with ...
- 123
1
vote
0
answers
288
views
Measure ram speed for application/ current speed utilization
Is there a way to measure the current ram speed?
I have an application which needs a lot of ram and I'm tuning performance and it looks like I have hit the limit of ram speed, but I have to measure it ...
- 191
1
vote
1
answer
509
views
Is there a way to configure traceroute such that the -T or -I flags do not require root privs to perform?
I am using Centos 7. Basically I just want any user to be able to do a ICMP or TCP traceroute. Is there a way to configure traceroute such that the -T or -I flags do not require root privilegess to ...
1
vote
0
answers
204
views
Does a VirtualBox/CentOs need two adapters to work properly ?
I have a Windows 7, 32bit, HP Laptop.
I have CentOs 6.5 running on VirtualBox 4.3.10.
Here is my eth0 config.
Code:
#vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
HWADDR=08:00:27:81:0F:...
- 87
1
vote
1
answer
406
views
Why I get refused when connect my remote host with domain name using ssh?
I added two A DNS records on my domain name whose HOSTNAME is @ and www,
I'm wondering why I get refused when use davidzhu.xyz
$ ssh [email protected]
ssh: connect to host davidzhu.xyz port 22: ...
- 33
1
vote
2
answers
17k
views
How can I merge partitions in Linux without losing data?
So, I'm working on a couple VMs for a high-profile site, and they have /home partitioned separately from / (root). The owner has asked me to merge the two partitions so that /home is not partitioned ...
1
vote
3
answers
26k
views
Allowing another user to execute program?
I want to allow a particular user to execute a compiled program in my directory. I got his username from cat /etc/passwd. The executable does not write any file but reads a few and gives output on the ...
- 113
1
vote
1
answer
6k
views
sudo: no valid sudoers sources found, quitting
On Amazon Workspaces I ran sudo chmod -R 777 /etc in order to create a file to install Docker but now after every command with sudo I run into this error
sudo: /etc/sudo.conf is world writable
sudo: /...
1
vote
3
answers
10k
views
CentOs 7.1 - Install Tomcat 8
I am using this tutorial as a setup reference to getting a Tomcat 8 running on CentOs 7.1, but after typing:
[root@localhost tomcat]# sudo systemctl start tomcat
I get the error:
Job for tomcat....
- 141
1
vote
1
answer
481
views
CentOS and /dev/midi support
I recently asked earlier about connecting a MIDI controller to CentOS. I've got the same problem, except now I'm backtracing to find a different way at it. I'm talking about the elusive /dev/midi file ...
- 181
0
votes
1
answer
133
views
Dos2unix different behavior on macos and centos?
I have a file which I need to convert to unix format, so I am doing dos2unix filename.txt. But the format of the file after conversion is different on CentOS when compared to the macOS format.
I have ...
- 101
0
votes
1
answer
2k
views
CentOS 7 custom routes with 2 NIC's
I have two interfaces o my CentOS 7:
ens192 - 10.70.87.200/24
ens224 - 192.168.11.200/24
tcp/22 has to be listening only on ens192
I want all internet traffic but a few networks do be going out via ...
- 1
0
votes
1
answer
1k
views
Linux CentOS installation will not start in VirtualBox
I downloaded CentOS 8 ISO (That had dvd1 postfix). This is biggest image so I guess this has everything.
I am installing this on VirtualBox 6.1, it boots up, I select install but all I get is this ...
- 1,773
0
votes
0
answers
223
views
How can I install Kernel 5.17 on CentOS 7?
On a CentOS 7.9 installation I have some troubles running newer CPUs, e.g Ryzen 5 5600G (with included graphics).
I concluded that it is the Kernel because it boots with certain versions, with kernel ...
- 272
0
votes
1
answer
4k
views
how to enable java in Browser on Centos 6.5
i already install Java (jdk 6u45 and jre 6u45) in a Centos 6.5 Server, but i don't know why in my browser appears to enable java plugin, these are steps to install java in my machine:
rpm -ivh jdk-...
Mario