My DNS server's logs are the text files that growing too fast and one of them is already over 30 MB in size. I didn't set up the max. file sizes. I would prefer just to manually delete the lines inside the files. Let's say, my log contains entries for the last 10 days.The entries that refer to 9 days I would manually delete and leave there just the last day's entries. Is it something that's not gonna cause any damage to anything, I hope???