If you're trying to pipe into grep it should be

| grep

but you'd want something after grep which is what you are grep'ing for.

Nick Howitt wrote:

Can you try creating the file:

touch /var/log/squid/access.log

chown squid:squid /var/log/squid/access.log

Then restart the proxy.

Thanks for the support and indications

I made the changes indicated but not functioning

I made the following process:

- Remove the proxy web module
- Reinstall the web proxy module
- Restore backup
- Make the changes indicated

the indicated solution it worked

I can supervise web traffic for just a moment because I generated the following error

tail: Can not open '/ grep' (attached image)

can you help me please

Nick Howitt wrote:

Can you try creating the file:

touch /var/log/squid/access.log

chown squid:squid /var/log/squid/access.log

Then restart the proxy.

Thanks for your support and indications

I made the changes, but it did not work.

I did the following:

- Uninstalling Web proxy module
- Installation Web proxy module
- Restore backup

Make the changes indicated and no longer generates the error

I get the following error message (attached image)
tail: Can not open '/ grep'

Can you try creating the file:

touch /var/log/squid/access.log

chown squid:squid /var/log/squid/access.log

Then restart the proxy.