> Source: [sk131692](https://support.checkpoint.com/results/sk/sk131692)

# sk131692 - "Permission denied" error when attempting to save a file in tcpdump using the "-C" and "-W" flags

| Property | Value |
|----------|-------|
| Solution ID | sk131692 |
| Date Created | 2018-07-22 |
| Last Modified | 2018-07-30 |
| Technical Level | Advanced |
| Products | Security Gateway, Security Management Server |
| Versions | R82.10, R82, R81.20, R82.10, R82, R81.20 |

## Symptoms

- "Permission denied" error when attempting to save a file in tcpdump using the "-C" and "-W" flags, for example:   


`# tcpdump -n -C 10 -W 10 -peni any host ` and icmp or arp -w /var/log/tcpdump.pcap  
tcpdump: /var/log/tcpdump.pcap0: Permission denied

## Solution

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