curl not working custom:executeForString() in RHEL9
Article ID: KB0070093
Updated On:
| Products | Versions |
|---|---|
| TIBCO Hawk | 6.x |
Description
Invoke methods custom:executeForString(curl xxx) from HawkConsole, get error:
Method invocation failure
Method Invocation Timed Out. Exceeded maximum response time (10)
Put the curl command into a shell script custom:executeForString(sendRequest.sh).
Get the error
Curl Error: 127
Issue/Introduction
curl not working custom:executeForString() in RHEL9
Environment
Red Hat Enterprise Linux 9 and Equivalent Linux Distributions
Resolution
In Red Hat Enterprise Linux 9, the default permissions are more stringent compared to RHEL 7. This can cause certain applications and commands that worked seamlessly on RHEL 7 to fail or encounter permission issues on RHEL 9.
To resolve this issue, you need to adjust the permissions on RHEL 9 to allow the necessary capabilities. Below are two solutions to address this problem:
Solution 1: Modify Permissions Directly on curl
If you are not able to grant the permission to original binary file, you can try this:
Solution 2: Create a Copy of curl and Modify Permissions
sudo setcap -r /usr/bin/curl
OR
sudo setcap -r /usr/local/bin/curl_hawk
To resolve this issue, you need to adjust the permissions on RHEL 9 to allow the necessary capabilities. Below are two solutions to address this problem:
Solution 1: Modify Permissions Directly on curl
- Open a terminal from the RHEL 9 server where the hawkagent is running from.
- Execute the following command to grant the necessary capabilities to the curl binary:
sudo setcap cap_net_bind_service,cap_net_admin+ep /usr/bin/curl
Solution 2: Create a Copy of curl and Modify Permissions
- Open a terminal from the RHEL 9 server where the hawkagent is running from.
- sudo cp /usr/bin/curl /usr/local/bin/curl_hawk
- sudo setcap cap_net_bind_service,cap_net_admin+ep /usr/local/bin/curl_hawk
- Use it in rulebases or in script: custom:executeForString(curl_hawk xxx).
sudo setcap -r /usr/bin/curl
OR
sudo setcap -r /usr/local/bin/curl_hawk
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