Hello list,
Though the question is not directly related to debian.
But since most of you are sysadmin expects, may I ask that for running a
simple web service, should I choose nginx or apache, and why? The service
is combined by some php and python scripts, with redis as backend DB.
Thanks.
Tom
> On Tue, May 23, 2023 at 08:24:10AM +0800, Tom Reed wrote:
>> Sorry for my newbie question too.
>>
>> If I know the network addr: 192.168.1.0
>> And know the broadcast addr: 192.168.1.255
>> Then I should have the possibility to cal the netmask a
> Tom Reed wrote:
>>
>> >
>> > That's right, but then they go 0 .. 2^8 - 1. 2^8 is still 256, Tim
>> does
>> > have a point there :-)
>> >
>>
>> For a given ipv4, if I know net addr and broadcast addr, how will I
>> calculate
>
> That's right, but then they go 0 .. 2^8 - 1. 2^8 is still 256, Tim does
> have a point there :-)
>
For a given ipv4, if I know net addr and broadcast addr, how will I
calculate the netmask?
--
sent from https://dkinbox.com/
> Hello,
>
> On Mon, May 15, 2023 at 09:10:24AM +0800, Tom Reed wrote:
>> If I clean iptables in the destination host, this telnet will get
>> success
>> at once.
>>
>> Any hints?
>
> Why have you not used "iptables -vL" to show the
>
> so whatever your 193.106.250.x host is, maybe it did indeed block
> the packets itself, but would be good to verify.
>
Hello
I have checked for details but didn't get the luck.
My destination host does have the rules:
REJECT tcp -- 0.0.0.0/00.0.0.0/0tcp
stem service as Jeremy Ardley suggests in a different reply.
>
> Exactly:
>
> script > /tmp/script.log 2>&1 &
>
> (adjust paths to taste). For good measure, and if your shell
> has job control, it will output the job number and PID, like
> so:
>
> [1] 15211
>
> (1 is the job number, 15211 is
Hello list
I have a long run shell script with similar content,
#!/bin/bash
while [ 1 ];do
func1()
func2()
sleep 5
done
Currently the script is running in front-end in shell.
How can I run it with the backend way? can I register it as a system service?
Thanks
> On Sun, May 14, 2023 at 08:36:38AM +0800, Tom Reed wrote:
>> tcp0 0 0.0.0.0:587 0.0.0.0:*
>> LISTEN
>> 32157/master
>>
>>
>> And the telnet results:
>>
>> $ telnet 193.106.250.xx 587
>> Trying 193.106.250.xx..
>
> On 14/5/23 08:28, Tom Reed wrote:
>> I telnet to host:587 not the port 23.
>> And port 587 already reject access with tcp rst.
> --
>
> check if you are listening on port 587
>
> netstat -tulpnW | grep 587
>
>
yes it does.
tcp0
>
> On 14/5/23 08:14, Tom Reed wrote:
>> /usr/sbin/iptables -A INPUT -p tcp --dport 143 -j REJECT --reject-with
>> tcp-reset
>> /usr/sbin/iptables -A INPUT -p tcp --dport 587 -j REJECT --reject-with
>> tcp-reset
>>
>> When I telnet from another h
Hello
I have these iptables rules which reject tcp connections with tcp rst.
/usr/sbin/iptables -A INPUT -p tcp --dport 143 -j REJECT --reject-with
tcp-reset
/usr/sbin/iptables -A INPUT -p tcp --dport 587 -j REJECT --reject-with
tcp-reset
When I telnet from another host to the protected port,
>
> On 13/5/23 18:56, Tom Reed wrote:
>> for iptables-save, after system rebooting, does it know where to locate
>> the file?
>
> Yes. That's all taken care of by the iptables-persistent package
>
> Also I made a typo. correction;
>
> sudo nano /etc/iptables/
>
> On 13/5/23 18:48, Tom Reed wrote:
>> How to recovery iptable rules after system rebooting?
>> I know I can put a @reboot crontab for this but there is maybe the
>> better
>> way.
>
>
> sudo apt install iptables-persistent
>
> sudo iptables-save >
Hello
How to recovery iptable rules after system rebooting?
I know I can put a @reboot crontab for this but there is maybe the better
way.
Thanks
> Tom Reed (12023-05-12):
>> otherwise every time i have to input password for sudo.
>
> Yes, that is the point.
>
> If “every time” is a lot for you, maybe your use habits need to be
> reviewed.
>
that's normal. for example, I have to check every kind of logs (m
> On Fri, May 12, 2023 at 07:27:25PM +0800, Tom Reed wrote:
>> what's the right way to add an user to run sudo without password?
>> I have to edit /etc/sudoers by manual. But I don't think it's a grace
>> way.
>
> *Without password*?? Yes, that
Hello
what's the right way to add an user to run sudo without password?
I have to edit /etc/sudoers by manual. But I don't think it's a grace way.
Thanks.
Tom
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