Arul Selvan's user avatar
Arul Selvan's user avatar
Arul Selvan's user avatar
Arul Selvan
  • Member for 10 years, 1 month
  • Last seen this week
39 votes

How do I reattach to Ubuntu Server's 'do-release-upgrade' process?

8 votes

Rate limiting with UFW: setting limits

6 votes

Relay host based on destination MX record

5 votes

Why cd does not change current directory in crontab?

5 votes

Is it really secure to connect to a server by SSH from hotels during a journey?

5 votes
Accepted

how to find proces which is pinging localhost

4 votes
Accepted

Disable two step SSH authentication for trusted addresses

4 votes
Accepted

Mail sent from my POSTFIX mail server goes to gmail spam

3 votes

redirect permanent http to https

3 votes

Postfix - How to prevent external clients from using my server as a relay?

3 votes

postfix NOQUEUE: reject: RCPT from 454 4.7.1 Relay access denied

2 votes

Get a website's host machine's OS/server software without access to the server

2 votes

Forward mail to "root" user even if RCPT TO field is different? (Postfix)

2 votes
Accepted

Iptables time-based rules having no effect - Gateway with 2 NICs

2 votes

How do I change my default shell on a domain account

2 votes

postfix relayhost based on the mail recipient

1 vote

Best way to disable SSH for all users?

1 vote

Disable health-check logging in AWS ELB Django Application

1 vote

How to check: variable of function is it path to a folder or file on a remote server?

1 vote

How to run docker container with bash shell?

1 vote

Linux Iptables writing new rule for limit a DoS Attack

1 vote
Accepted

Mounting fails with fstab

1 vote
Accepted

Write sitemap.xml to java webapp root directory permission denied

1 vote
Accepted

Is it possible to deterministically trace how port 80 is forwarded and where the configuration is on a given system?

1 vote
Accepted

Permission Denied (Publickey) from OS X to Ubuntu

1 vote

How to see the java process that is using a port

1 vote

Postfix bounces on user unknown alias (`"|exit 67"`) instead of rejecting mail

1 vote

Tomcat webapps eating all the memory up

0 votes

Limited to 1024 file descriptors [relates to ulimit -n]

0 votes

iptables: trying to block port 53 but not working